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In addition to the projects, reviews, articles, and
features detailed below, each issue contains...
August 2008
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PROJECTS AND CIRCUITS
Four Channel A/V Switch
by Jim Rowe
Select one of four S-video or composite video sources plus
audio
DC Relay Switch by John Clarke
Control high current loads with a few milliamps
Temperature Switch by John Clarke and Julian Edgar
A cheap general purpose design that can work up to 245 Deg C
Mains Monitor by John Becker
Keep track of electricity use in your house
Ingenuity Unlimited
Universal Ding-Dong; 10V to 12V LED Voltmeter
July 2008
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PROJECTS AND CIRCUITS
PIC MIDI Wave Sound Generator
by Mike Rainbow
A wavetable synthesis music generation source
Universal High-Energy LED Lighting System - Part 2 by John Clarke and
Julian Edgar
Construction plus a Luxeon-powered spotlight
Galactic Voice by John Clarke
Develop an instant tapport with Droids, Cyclons, Klingons
and Daleks
Ingenuity Unlimited
Plug n' Play; Temperature Drift Monitoring
June 2008
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PROJECTS AND CIRCUITS
Universal High-Energy LED Lighting System - Part 1
by John Clark & Julian Edgar
An incredibly versatile Luxeon LED lighting system - easy
dimming flashing and automatic switch off
Starship Enterprise Door Sounder by Jim Rowe
A project especially for 'Trekkies'
Mini Theremin - Part 2 by John Clarke
A unique and versatile electronic musical instrument
Monopoly Money by Dave Geary
See if you can do a better job than Wall Street
Ingenuity Unlimited Sharing your ideas with others
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Pirate Parts
Practically Speaking by Robert Penfold
Ground and Earth Loops
Teach-In 2008 Part 9 by John Becker
Watchdog Timer, Sleep and Interrupts, plus simple value
converter
Circuit Surgery– by Ian Bell
MAX8596X LED driver IC
PIC n' Mix– by Mike Hibbett
Microcontroller I/O port expansion
Net Work – by Alan Winstanley
A fishy experience in the home
April 2008
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PROJECTS AND CIRCUITS
A PC-Controlled Burglar Alarm System - Part 1 by
Trent Jackson
Fancy a full-featured alarm control panel with dialer
capabilities?
Studio Series - Remote Control Module by Peter
Smith
If you’ve built our preamp described in February 2008, then
this
project is a must-have addition.
PIC In-Circuit Programming Add-On by Keith
Anderson
Does your PIC programmer have provision for in-circuit
programming?
MIDI Activity Detector by David Clarke
If you build, repair or regularly set up MIDI (Musical
Instrument Digital Interface) systems, you need this
easy-to-use, ‘quick-check’ gadget!
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Light Pipes and Peashooters
PIC N’ Mix by Mike Hibbett
Real Time Clocks
Circuit Surgery by Ian Bell
Current source
Practically Speaking by Robert Penfold
Electronic components jargon
Teach-In 2008 Part 6 by John Becker
24-Hour clock, frequency generation and data EEPROM
Net Work – The Internet page surfed by Alan
Winstanley
A full 8 Megs
March 2008
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PROJECTS AND CIRCUITS
Flourescent Tube Driver by John Ellis
Provides fluorescent lighting from a 6V rechargable battery.
Ideal for emergency, camping and no-mains lighting
applications
Studio Series - Stereo Headphone Amplifierby Peter
Smith
A top-class headphone amp that can drive high or low
impedance ‘phones to full power levels, with very low noise
and distortion
Multi Throttle Control for PC Flight Simulatorsby
Robert Gott
Build this simple controller and start flying with the big
boys
MIDI Drum Kit - Part 4 by John Clarke
The software...and driving it!
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Strange Bedfellows
PIC N’ Mix by Mike Hibbett
Checksums and CRC checks
Circuit Surgery by Ian Bell
Current source
Colossus and Pico
The world’s first programmable electronic computer reborn
Practically Speaking by Robert Penfold
Electronic components jargon
Teach-In 2008 Part 5 by John Becker
Introduction to timers, BCD counting and equality checking
Net Work – The Internet page surfed by Alan
Winstanley
A fine mashup; I’ll vouch for that
February 2008
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PROJECTS AND CIRCUITS
Electrosmog Sniffer by Thomas Scarborough
Read Most EMFs!
Studio Series - Stereo Preamplifierby Peter Smith
A Superb Preamplifier For The Audio Enthusiast!
Low-Cost intercooler Water Spray Controllerby
Julien Edgar
A cheap but sophisticated way of controlling a turbo car
intercooler water spray
MIDI Drum Kit - Part 3 by John Clarke
Building the sensors and stand
Ingenuity Unlimited Sharing your ideas with others
Infared Proximity Switch
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Tales of Putrefaction
PIC N’ Mix by Mike Hibbett
Static LCDs and PICs
Circuit Surgery by Ian Bell
Concluding our discussion of SPICE simulation
Colossus and Pico
The world’s first programmable electronic computer reborn
InterFace by Robert Penfold
Shaping up with Visual BASIC 2008 Express Edition
Teach-In 2008 Part 4 by John Becker
Using alphanumeric LCDs under PIC control
Net Work – The Internet page surfed by Alan
Winstanley
All-in-one search results; Viral vouchers
January 2008
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PROJECTS AND CIRCUITS
Serial I/O Controller & Analogue Sampler by Trent
Jackson
Looking for an easy-to-drive I/O controller?
PIC Carillonby John Becker
Ding-Dong Merrily on High, or Lower!
Phone/Fax Missed Call Allert by Jim Rowe
Detect incoming calls on your phone or fax
MIDI Drum Kit - Part 2 by John Clarke
Putting it all together
Ingenuity Unlimited Sharing your ideas with others
Automatic PSU Control
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Older But Wiser
PIC N’ Mix by Mike Hibbett
Writing to Flash
Circuit Surgery by Ian Bell
More on SPICE simulation - difficulties
The Power of Mechatronics – Part 6 by Colin
Greaves
A simple approach to RF networking
Practically Speaking by Robert Penfold
Selecting and buying components for projects
Teach-In 2008 Part 3 by John Becker
Using PIC Microcontrollers – More PIC control concepts, plus
multiplexing
Net Work – The Internet page surfed by Alan
Winstanley
Word's hidden depths; cracking the IE defenders
December 2007
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PROJECTS AND CIRCUITS
MIDI Drum Kit- Part 1 by John Clarke
Drums without the skins
PIC Speech Synthesiser by John Becker
PIC-generated speech for PIC projects
Build a charger for your iPOD or MP3 player by
John Clarke
Charge from a mains plug-pack or a car battery
AVR ISP SocketBoard by Peter Smith
Supports dual-in-line AVR micros
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Mother Knows Best
PIC N’ Mix by Mike Hibbett
Display Menus
Circuit Surgery by Ian Bell
More on SPICE simulation
Protecting Your Designs and Copyright by Sara
Ludlam
Are you being copied? Can you stop copycats? If so, how?
Interface by Robert Penfold
Visual Basic 6 – Is it time to move on?
Teach-In 2008 – Using PIC Microcontrollers Part 2
by John Becker
Programme basic commands, plus simple LED control
Net Work – The Internet page surfed by Alan
Winstanley
Keeping your word
November 2007
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PROJECTS AND CIRCUITS
Vehicle Multi-Voltage Monitor by John Clarke
Monitors voltages and sensor signals in a car
Inductance & Q-Factor Meter - Part 2by Leonid
Lerner
A wide range multi-frequency inductance and Q-factor meter
USB Electrocardiograph by Jim Rowe
Displays ECG on a PC
Experiementer's Audio System by Stef Niewiadomski
Audio preamp, filters, power amplifier and power supply for
radio experimenters
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Witricity: Is Tesla’s Dream Coming True?
PIC N’ Mix by Mike Hibbett
Using Flowcharts
Circuit Surgery by Ian Bell
Inductor size and SPICE simulation
The Power of Mechatronics – Part 6 by Colin
Greaves
A simple approach to RF networking
Practically Speaking by Robert Penfold
Static charge vulnerability
Teach-In 2008 Part 1 by John Becker
Using PIC Microcontrollers – Introduction
Net Work – The Internet page surfed by Alan
Winstanley
Anti-virus trials and tribulations
IFA Electronics Show Berlin Barry Fox Reports
October 2007
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PROJECTS AND CIRCUITS
V8 Doorbell by John Clarke
Sounds like a real V8 engine
Inductance & Q-Factor Meter by Leonid Lerner
A wide range multi-frequency inductance and Q-factor meter
Standby Power Saver by John Becker
Remotely turns off appliances in standby mode
Build Your Own Siesmograph by Dave Dobeson
Display ‘tremors’on a PC
Ingenuity Unlimited – Sharing your ideas with
others
Monitoring PSU output current and voltage
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Keeping The Lights On
PIC N’ Mix by Mike Hibbett
More on 1-wire protocol
Circuit Surgery by Ian Bell
Regulator stability and switch bounce
The Power of Mechatronics – Part 5 by Ian Pearson
A New Dimension
InterFace by Robert Penfold
Setting Parallel Port Outputs to Inputs
Banning the Bulb by Dave Geary
An analysis of low energy bulbs
Net Work – The Internet page surfed by Alan
Winstanley
At Your Service
September 2007
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PROJECTS AND CIRCUITS
V2 PC Scope – Part 2 by John Becker
A PIC and PC controlled hobbyist oscilloscope
Pocket TENS by John Clarke
First steps in broadband
Flexitimer by Jim Rowe
Multipurpose easy-to-programme timer
USB Breakout Box by Stan Swan
Check you are not overloading the USB port
Ingenuity Unlimited – Sharing your ideas with
others
Measuring Colour Temperature
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Two Cheers For Eco-Lamps
PIC N’ Mix by Mike Hibbett
Single-wire communication protocol interface for PICs
Circuit Surgery by Ian Bell
Linear Voltage Regulators and Capacitors – Part 3
The Power of Mechatronics – Part 4 by Darren Wenn
Adding Speech To Your Application
Practically Speaking by Robert Penfold
The Techniques of Actually Doing It!
Using MPLAB – Part 4 by Mike Hibbett
Relocatable Development
Net Work – The Internet page surfed by Alan
Winstanley
At Your Service
August 2007
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PROJECTS AND CIRCUITS
V2 PC Scope – Part 1 by John Becker
A PIC and PC controlled hobbyist oscilloscope
RFID Security module by Peter Smith
Contactless ‘key’ system
TwinTen Stereo Amplifier by Jim Rowe and Peter
Smith
Easy-to-build, with surprising performance
Printer Port Hardware Simulator by Jim Rowe
Tests printers and other peripherals without a PC
Ingenuity Unlimited – Sharing your ideas with
others
Atmospheric Change Monitor
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Two Birds With One Stone
PIC N’ Mix by Mike Hibbett
Starting a new PIC project – some guidance
Circuit Surgery by Ian Bell
Linear Voltage Regulators and Capacitors – Part 2
The Power of Mechatronics – Part 3 by Darren Wenn
Stepping Up a Gear
Interface by Robert Penfold
Problems of Setting Parallel Port Outputs to Inputs
Using MPLAB – Part 3 by Mike Hibbett
Debugging
Net Work – The Internet page surfed by Alan
Winstanley
Virtually there; Street wise
E-Blocks and FlowCode 3 - Reviewed by Robert
Penfold
July 2007
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PROJECTS AND CIRCUITS
Lead-Acid Battery Zapper by Jim Rowe
Extend the working life of liquid-electrolyte lead-acid
batteries
Video Reading Aid by Jim Rowe
Displays enlarged text on a TV or video monitor
MiniCal 5V Meter Calibration Standard by Barry
Hubble
How accurate is your digital multimeter? Plus a frequency
reference
Ingenuity Unlimited – Sharing your ideas with
others
Micropower Call Monitor, 10V to 15V Battery Voltmeter
Digi-Flash Slave by Terry de Vaux-Balbirnie
Professional possibilities for your digital camera!
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Every Little Helps?
PIC N’ Mix by Mike Hibbett
All about PIC special features
Circuit Surgery by Ian Bell
Linear Voltage Regulators and Capacitors – Part One
The Power of Mechatronics – 2 by Darren Wenn
Controlling Motors
Practically Speaking by Robert Penfold
Semiconductor identification
Using MPLAB – Part 2 by Mike Hibbett
Initial Stages of Program Writing
Net Work – The Internet page surfed by Alan
Winstanley
Impressive service, Blog your log today
June 2007
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PROJECTS AND CIRCUITS
3V to 9V DC-DC Converter by Peter Smith
TNever buy another 9V battery
Bat Sonar by Thomas Scarborough
Listen to the sounds of bats, plus an ultrasonic sonar
A Poor Man's Q-Meterby Maurie Findlay, MIEAust
Simple circuit ro measure inductanceand 'Q'
Ingenuity Unlimited – Sharing your ideas with
others
Mobile Phone Switch: Ding-Dong Doorbell
Energy Meter - Part 2 by John Clarke
Control your power costs
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Sea Change In Electronics
PIC N’ Mix by Mike Hibbett
Reviewing Microchip’s PICkit2
Circuit Surgery by Ian Bell
Step-up Converters Using Transformers
The Power of Mechatronics – 1
Mechatronics Design
Interface by Robert Penfold
More On Windows Vista Compatibility
Using MPLAB – Part by Mike Hibbett
An introduction to MPLAB
Net Work – The Internet page surfed by Alan
Winstanley
A Fistful of Dollars
May 2007
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PROJECTS AND CIRCUITS
SMS Controller – Add-Ons by Peter Smith
Three external circuits for the SMS Controller: Test jig;
PIR sensor and a low battery alarm
Energy Meter – Part 1 by John Clarke
Control your power costs
Caravan Lights Checkby Terry de Vaux-Balbirnie
Are your trailer lights working?
Ingenuity Unlimited – Sharing your ideas with
others
Ultra-Regulated LED; Courtesy Light Delay; Pico Prize
Winners
Bass Extender by Peter Smith
Pump up the bass response of your speakers
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Leaner and greener
PIC N’ Mix by Mike Hibbett
PICs and ADCs
Circuit Surgery by Ian Bell
Using a 4046 phase-locked loop IC
Visual C Training Course by Robert Penfold
Review of a new product
Practically Speaking by Robert Penfold
Front panel labels
Net Work – The Internet page surfed by Alan
Winstanley
Failing memories; Remote backups; Price of restoration
April 2007
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PROJECTS AND CIRCUITS
SMS Controller – Pt. 2 by Peter Smith
Control equipment from anywhere using SMS and an old Nokia
mobile phone
PIC Polyphonium - Part 2 by John Becker
LED display interface
Students’ Amp by Peter Smith
Great sound, inexpensive, easy to build 20W module
Ingenuity Unlimited – Sharing your ideas with
others
Wind Speed Monitor
Star Power by Peter Smith
Luxeon Star LED supply that runs off 12V DC, ideal for cars,
caravans and boats
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Automotive electronics looks set to change
PIC N’ Mix by Mike Hibbett
PICs and USARTs
Circuit Surgery by Ian Bell
Active current measurement
Visual C Training Course by Robert Penfold
Review of a new product
Interfaceby Robert Penfold
Are your software programs Vista compatible?
Net Work – The Internet page surfed by Alan
Winstanley
A failing memory; Biometric memory gets a thumbs up
March 2007
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PROJECTS AND CIRCUITS
SMS Controller – Pt. 1 by Peter Smith
Control equipment from anywhere using SMS and an old Nokia
mobile phone
PIC Polyphonium by John Becker
A polyphonic musical design that’s PC linked, with on-screen
musical score
IR Remote checker by Jim Rowe
Test your remote controls with this simple project
Ingenuity Unlimited – Sharing your ideas with
others
2-wire LEDs Driver; Switched-Capacitor Sinewave Generator
A Lap Counter for Swimming Pools by John Clarke
If you swim to keep in shape this project will count the
lengths
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Watery Wireless
PIC N’ Mix by Mike Hibbett
PIC Timers
Circuit Surgery by Ian Bell
A Brief Guide To Counters
Practically Speakingby Robert Penfold
Hard wiring
Net Work – The Internet page surfed by Alan
Winstanley
Internet Explorer 7
February 2007
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PROJECTS AND CIRCUITS
PIC Digital Geiger Counter by Robert Lane and
Steve Thompson
With LCD readout and USB interface
Courtesy Light Delay by John Clarke
Universal circuit fits all vehicles
Programmable Robot by Thomas Scarborough
Bump and respond; random motion; programmable sound; light
sensing
Ingenuity Unlimited – Sharing your ideas with
others
Alternating LED Flasher
Charger for deep-cycle 12v batteries - Part 2 by
John Clarke
A 16A, 3-step PIC controlled design
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Soldering Schadenfreude
PIC N’ Mix by Mike Hibbett
Implementing a software PLL for serious users of PICs – Part
2
Circuit Surgery by Ian Bell
Line level – What it is
Interfaceby Robert Penfold
Improved Visual BASIC controls
Net Work – The Internet page surfed by Alan
Winstanley
More Internet Explorer tips; Don’t print it – PDF it! How to
shop online smoothly
C for PICs – Part 4 by Mike Hibbett
A practical implementation of using C for USB control of
LCDs
January 2007
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PROJECTS AND CIRCUITS
Balances Microphone Preamp by John Clarke
Suitable for PA, Karaoke and many other applications.
Jumping Spider by Thomas Scarborough
Easy-to-build fun project
High-efficiency Power supply for 1w Luxeon Star LEDs
by Peter Smith
Uses a pair of D cells and includes a brightness control
Ingenuity Unlimited – Sharing your ideas with
others
A 16A, 3-step PIC controlled design
Charger for deep-cycle 12v batteries - Part 1 by
John Clarke
PA logic game to exercise your grey cells
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Lucky Strike?
PIC N’ Mix by Mike Hibbett
Implementing a software PLL for serious users of PICs – Part
1
Circuit Surgery by Ian Bell
Understanding power MOSFETs
Practically Speakingby Robert Penfold
Mounting circuit boards
Net Work – The Internet page surfed by Alan
Winstanley
Better Browsing
C for PICs – Part 3 by Mike Hibbett
Cross-compiling a C program
December 2006
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PROJECTS AND CIRCUITS
USB Power Injector by Jim Rowe
Feeds extra power into the USB line
RGB TO Component Video Converterby Jim Rowe
Get your message across in lights!
QLapel Microphone Adaptor for PA Systemsby John
Clarke
Allows electret microphones to be used with PA systems
Ingenuity Unlimited – Sharing your ideas with
others
1000-Year Flasher
Mind Trainerby Bart Trepak
PA logic game to exercise your grey cells
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Banned Substances
PIC N’ Mix by Mike Hibbett
More about using MultiMedia Cards with PICs
Circuit Surgery by Ian Bell
Final close-up view of 555 timer circuit formulae
INTERFACEby Robert Penfold
Exploring the graphics capability of Visual Basic 2005
Express
Net Work – The Internet page surfed by Alan
Winstanley
Recycle Risks Confirmed; A Better VNC; IP Cameras
C for PICs – Part 2 by Mike Hibbett
Creating Programs
November 2006
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PROJECTS AND CIRCUITS
Studio 350 Power Amplifier Module - Part 2 by
Peter Smith
A really quiet, low distortion power amp with some real
grunt
Giant LED Message Displayby John Becker
Get your message across in lights!
Quick Brake by Julian Edgar and John Clarke
Reduces brake light turn-on time by 200ms
Ingenuity Unlimited – Sharing your ideas with
others
Disco Light
Micropower Battery Protector by Peter Smith
Protect your expensive batteries with this electronic
cut-out
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Day of the RFIDs
PIC N’ Mix by Mike Hibbett
Multimedia cards have serious storage capacity for PIC
projects
Circuit Surgery by Ian Bell
More on timing formulae for 555 timers
Practically Speaking by Robert Penfold
Mounting electronic components
Net Work – The Internet page surfed by Alan
Winstanley
Route to your network; An easy VNC
C for PICs – Part 1 by Mike Hibbett
Introduction, overview and getting started
October 2006
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PROJECTS AND CIRCUITS
Studio 350 Power Amplifier Module - Part 1 by Leo
Simpson and Peter Smith
A really quiet, low distortion power amp with some real
grunt
Fridge Door-Open Alarm by John Clarke
Don’t lose that chill!
Through-Glass Alarm by Godfrey Manning, BSc, MB
BS, G4GLM
Deceptively simple with quite amazing output
Ingenuity Unlimited – Sharing your ideas with
others
Random Colour Generator, Switch Mode LED Unit
Linear Supply for 1W Star LEDs by Peter Smith
Run and dim one or more Luxeon 1W Star LEDs from 12V DC
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Mushroom Magic and the Quest for Green Volts
PIC N’ Mix by Mike Hibbett
Understanding PIC Datasheets
Circuit Surgery by Ian Bell
Timing Formulae for 555 Timers
Interface by Robert Penfold
More on a Visual Approach to Producing Virtual Controls
Net Work – The Internet page surfed by Alan
Winstanley
A Slipped Disk
September 2006
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PROJECTS AND CIRCUITS
Low-cost 50MHz Frequency Meter by John Clarke
An accurate autoranging design
A Smart Mixture Display for your Car by Julian
Edgar & John Clarke
Track your car’s fuel mixtures in real time
Human-powered LED Torches by Julian Edgar
Deceptively simple with quite amazing output
Ingenuity Unlimited – Sharing your ideas with
others
Solar Radio
Water Level Gauge by Terry de Vaux Balbirnie
PIC controlled LED torch
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Simply Confused? Or Not So Sure?
PIC N’ Mix by Mike Hibbett
Smart Dust – How small can a PIC get?
Circuit Surgery by Ian Bell
Common Mode Rejection Ratio
TEACH-IN 2006 by Mike Tooley BA
Find out how circuits work and what really goes on inside
them
Part 11: Radio, Constructional Project, Teach In 2006
Competition
Practically Speaking by Robert Penfold
Pin-outs; switch and potentiometer connections
Net Work – The Internet page surfed by Alan
Winstanley
Webcam Security System
August 2006
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PROJECTS AND CIRCUITS
Loudspeaker Level Meter by John Clarke
For home theatre and PA set-up
Telephone Dialer for Burgler Alarms by Leon
Williams
Dials a preprogrammed number when triggered
Adjustable DC-DC Converter for Cars by John Clarke
Run electronic equipment in your car
Ingenuity Unlimited – Sharing your ideas with
others
Adjustable Touch Switch
High Intensity Torch by Gerard Samblancat
PIC controlled LED torch
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Strange But True
PIC N’ Mix by Mike Hibbett
Range checking for more advanced PIC users
Circuit Surgery by Ian Bell
Logic Level Conversion
TEACH-IN 2006 by Mike Tooley BA
Find out how circuits work and what really goes on inside
them
Part 10: PIC Microcontrollers and Operational Amplifiers
Interface by Robert Penfold
A Visual Approach to Producing Virtual Controls
Net Work – The Internet page surfed by Alan
Winstanley
MSN Messenger
July 2006
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PROJECTS AND CIRCUITS
PIC Sudoku Unit by John Becker
Hand-held game player and PC puzzle solving software
Digital Instrument Display for Cars Part 2 by John
Clarke
Calibration and connection of the unit
Ingenuity Unlimited – Sharing your ideas with
others
SMagic Bulb
PC Power Monitor by Jim Rowe
Monitors the main DC power rails in your PC
A Dirt Cheap High Current Bench Supply by Col
Hodgson, VK2ZCO
Modify that old PC PSU to give 13·5V at up to 17A
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Terahertz: The Anti-Terrorism Solution
PIC N’ Mix by Mike Hibbett
Multiplexing – A Trick or Two
Circuit Surgery by Ian Bell
Schmitt Trigger Circuits
TEACH-IN 2006 by Mike Tooley BA
Find out how circuits work and what really goes on inside
them
Part 9: Bistable Investigation: Microprocessors and
Microcontrollers
Practically Speaking by Robert Penfold
Basic project building and soldering problems
Net Work – The Internet page surfed by Alan
Winstanley
The Phone Age?
June 2006
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PROJECTS AND CIRCUITS
Poor Man's Metal Detector by Thomas Scarborough
Just five components give surprisingly good results
Digital Instrument Display for Cars Part 1 by John
Clarke
Convert analogue instruments to a digital display
Ingenuity Unlimited – Sharing your ideas with
others
Super Vibration Switch, Simple Sonar
Widgy Box Distortion effects for Your Guitar by
Peter Smith
Great sounds – cheap and easy to build
Phone Ring and Test by Terry de Vaux-Balbirnie
UK, US and European ring tones, plus a basic test
SERIES AND FEATURES
Techno-Talk by Mark Nelson
The Memory Lingers On
PIC N’ Mix by Mike Hibbett
Random Number Generation
Circuit Surgery by Ian Bell
Op amp Output Capabilities
TEACH-IN 2006 by Mike Tooley BA
Find out how circuits work and what really goes on inside
them
Part 8: Digital Electronics: Introducing logic circuits;
logic families; logic gates
InterFace by Robert Penfold
PC Interfacing Software
Net Work – The Internet page surfed by Alan
Winstanley
VoIP Phones; Video Stars!
May 2006
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PROJECTS AND CIRCUITS
Digital Reaction Timer by Jim Rowe
Test your reaction times using a digital multimeter
Nail Sniffer & Volts Hound by Edwin Chicken MBE
MSc
Two monitors to help you do DIY safely!
Ingenuity Unlimited – Sharing your ideas with
others
Automatic Doorbell
LED Lighting for Your Car by Peter Smith
Replace your car’s filament lamps with LEDs for improved
safety
Smart Card Reader and Programmer by Peter Smith
WReads and programmes smart cards
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Extreme Electronics
PIC N’ Mix by Mike Hibbett
PIC and Software Reliability
Circuit Surgery by Ian Bell
Driving multiple LEDs
TEACH-IN 2006 by Mike Tooley BA
Find out how circuits work and what really goes on inside
them
Part 7: Transistors: Test and Measurement: Meters,
Ohmmeters, Oscilloscopes, Waveforms, Distortion and
Frequency Response Testing.
Practically Speaking by Robert Penfold
Capacitor types and selection
Net Work – The Internet page surfed by Alan
Winstanley
Let’s Start With Skype!
April 2006
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PROJECTS AND CIRCUITS
A Programmable Continuity Tester by Trent Jackson
An ideal go/no go tester
Omni Pendulum by Thomas Scarborough
A fun design to entertain you
Ingenuity Unlimited – Sharing your ideas with
others
Sound Effects Generator
The PortaPAL Public Address Amplifier – Part 2 by
John Clarke and Leo Simpson
Building our state of the art design
‘Smart’ Slave Flash Trigger by Jim Rowe
Works with multiple flash “red-eye reduction” cameras
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Funny Facts About The Mains
Consumer Electronics Show by Barry Fox
The 2006 annual CES show in Las Vegas
PIC N’ Mix by Mike Hibbett
Experimenting With Overclocking PICs
Circuit Surgery by Ian Bell
More On Extending PIC Output Capabilities
TEACH-IN 2006 by Mike Tooley BA
Find out how circuits work and what really goes on inside
them
Part 6: Transistors: types, operation, and characteristics.
Basic concepts of amplifiers: gain, frequency response and
bandwidth. Some practical amplifier circuits.
Interfacesurfed by Robert Penfold
Boosting Output Currents
Net Work – The Internet page surfed by Alan
Winstanley
It’s Good To Talk; Voice On The Net; Simply Skype
E-Chip review by Robert Penfold
Logic circuits educational system reviewed
March 2006
Purchase this issue
PROJECTS AND CIRCUITS
The Portapal Public Address Amplifier – Part 1 by
John Clarke and Leo Simpson
A state of the art 33W RMS design
Ingenuity Unlimited – Sharing your ideas with
others
Dog Alert
Telescope Interface by John Becker
Link your Meade telescope with your handheld GPS receiver
Power Up by John Clarke
Turns peripherals on automatically
Video-Audio Booster for Home Theatre by Jim Rowe
Boosts composite, S-Video or component video plus audio
signals
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Body Cells
TEACH-IN 2006 by Mike Tooley BA
Find out how circuits work and what really goes on inside
them
Part 5: Introducting Magnetism and Inductance, Introducing
Inductors, Transformers, Rectifiers and Voltage Regulation
PIC N’ Mix by Mike Hibbett
Using the RS485 protocol for series comms
Net Work – The Internet page surfed by Alan
Winstanley
Gone Phishing; Calling ID Toolbar
Practically Speaking by Robert Penfold
More on front panel overlays using a PC
Circuit Surgery by Ian Bell
CShift registers can extend PIC output capabilities
February 2006
Purchase this issue
PROJECTS AND CIRCUITS
A Highly Flexible Keypad Alarm by John Clarke
A stand-alone system for home, office, car etc.
Ingenuity Unlimited – Sharing your ideas with
others
Clipping Indicator for the STA7360
An Active 3-Way Crossover for Loudspeaker Systems
by Rod Elliot
For those that want the very best from their loudspeaker
systems
Staus Monitor by Terry de Vaux-Balbirnie
Is your boiler or freezer still on – remotely monitor them
Jazzy Heart by Thomas Scarborough
A flashing piece of jewellery for the love of your life
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Pronounced Guilty Without Trial
TEACH-IN 2006 by Mike Tooley BA
Find out how circuits work and what really goes on inside
them
Part 4: Semiconductors, Introducting Diodes
PIC N’ Mix by Mike Hibbett
Using SPI Bus Devices – Part 2
Net Work – The Internet page surfed by Alan
Winstanley
Tried the EPE Chat Zone?
InterFace by Robert Penfold
Improving the input voltage span from an A/D converter
Circuit Surgery by Ian Bell
Connected transistor pairs
January 2006
Purchase this issue
PROJECTS AND CIRCUITS
A "Tiptronic-style" Gear Indicator by John Clarke
Car and motorbike digital indicator
Ingenuity Unlimited – Sharing your ideas with
others
A Simple FM Radio
Sunset Switch by John Clarke
On at dusk off when you want
PIC Ambilux by John Becker
Colour changes to ambient temperature
Current Clamp Adaptor for Multimeters by John
Clarke
Looking for a current clamp meter that won’t break the bank?
SERIES AND FEATURES
Techno-Talk by Mark Nelson
An XMAX Tale
TEACH-IN 2006 by Mike Tooley BA
Find out how circuits work and what really goes on inside
them
Part 3: Capacitance. indroducing Capacitors.
PIC N’ Mix by Mike Hibbett
Using SPI Bus Devices
Net Work – The Internet page surfed by Alan
Winstanley
Anti-virus and anti-spam plus Google conversions
Practically Speaking by Robert Penfold
Producing front panel overlays using a computer
Circuit Surgery by Ian Bell
More on gain and impedance calculations
December 2005
Purchase this issue
PROJECTS AND CIRCUITS
Vehicle Frost Box Mk2 by Malcolm Wiles
With winter approaching again, give yourself extra warning
of treacherous road conditions
Propeller Monitor by John Becker
Know the power and revolution rate developed by your
propeller or motorised model
Ingenuity Unlimited– Sharing your ideas with
others
Sharing your ideas with others- Multitone Generator;
Electret Mic Tester
Solid-State Hammond by Thomas Scarborough
Add moving spacial ambience to your stereo
Solid-State Valve Power Supply by Stef
Niewiadomski
A low voltage converter to supply valve equipment
SERIES AND FEATURES
Techno-Talk by Mark Nelson
The Negroponte Switch
TEACH-IN 2006 by Mike Tooley BA
Find out how circuits work and what really goes on inside
them
Part 2: Circuit Diagrams, Series and Parallel Circuits,
Basic Measurements, Kirchhoff’s Laws, Power and Energy,
Circuit Construction Techniques
PIC N’ Mix by John Becker
How to implement a PIC bootloader
Viewing the Future by Barry Fox
3D TV developments
Net Work – The Internet page surfed by Alan
Winstanley
Free virus check
Interface by Robert Penfold
Adding more inputs to an A/D converter
Circuit Surgery by Ian Bell
Gain and impedance calculations
November 2005
Purchase this issue
PROJECTS AND CIRCUITS
Speed Camera Watch Mk2 by Mike Hibbett
Improved early warning and speed alert system
Multi-Function R/C Switch by Ken Ginn
A four-channel switcher for your radio controlled models
Ingenuity Unlimited– Sharing your ideas with
others
Sharing your ideas with others Noiseless Switch
PIC Chromatome by John Becker
Colour-to-Sound experimenter’s project
Back-to-Basics – Part 8 Noughts and Crosses Enigma
and Weather Vane Repeater by Bart Trepak
Simple, easy-to-build circuits based on one or two CMOS
logic chips
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Tardic antennas and metamaterialism
TEACH-IN 2006 by Mike Tooley BA
Learn how computers do maths without making your brain ache!
PIC N’ Mix by John Becker
Using the MAX118 8-channel ADC with a PIC
Net Work – The Internet page surfed by Alan
Winstanley
Climb aboard EPE’s website and a case for Roboform
Practically Speaking by Robert Penfold
Getting to grips with stripboard
Circuit Surgery by Ian Bell
Our consultant surgeon looks at analogue switch i.c.s
October 2005
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PROJECTS AND CIRCUITS
Halloween Howler by Mike Hibbett
Fun project; the sound comes from WAV files stored in EEPROM
PIC-based USB Interface by Robert Lang
USB the easy way with a PIC18F2455 microcontroller
Ingenuity Unlimited– Sharing your ideas with
others
Cybervox Light Interface; Theremin Volume Control; Voltage
Splitter; Pulsed Motor Speed Controller
Photic Phone by Thomas Scarborough
Communicate digitally over a light beam
Back-to-Basics – Part 7 Parking Radar and Telephone
Switcher by Bart Trepak
Simple, easy-to-build circuits based on one or two CMOS
logic chips
SERIES AND FEATURES
Techno-Talk by Mark Nelson
The foggy history of electronic development
Introducing the Virtual DIY Calculator by Clive
“Max” Maxfield & Alvin Brown
Learn how computers do maths without making your brain ache!
Interface by Robert Penfold
Using a D/A converter in a transistor tester
PIC N’ Mix by John Becker
More on getting a DS1267 dual digital potentiometer working
with a PIC
Net Work – The Internet page surfed by Alan
Winstanley
Dealing with spyware
Circuit Surgery surfed by Ian Bell
Chopper op.amp i.c.s
September 2005
Purchase this issue
PROJECTS AND CIRCUITS
All-Band Radio by Thomas Scarborough
No-frills, low-budget, easy-build, sensitive radio with
excellent reception
Multicore Cable Tester by Mike Geary
How to conveniently check lengthy multicore cables
Ingenuity Unlimited– Sharing your ideas with
others
Low-cost RS232 Interface; TV Audio Coupler; PIC-Based Noise
Generator
Snooker and Darts Scoreboard by John Becker
Readily display all the scores at your snooker and darts
matches
Controlling Model Railway Signals by John Waller
Using stepper motors to control the semaphore signals used
with model railways
Back-to-Basics – Part 6 Daily Reminder and Whistle
Switch by Bart Trepak
Simple, easy-to-build circuits based on one or two CMOS
logic chips
SERIES AND FEATURES
Techno-Talk by Mark Nelson
Describing the problems of wind turbines – and some
ingenious solutions
Circuit Surgery by Alan Winstanley and Ian Bell
Low-frequency amplification, plus simple low-battery
monitoring
Practically Speaking by Robert Penfold
A novice’s guide to measurement units
PIC N’ Mix by John Becker
Getting a DS1267 dual digital potentiometer working with a
PIC
Net Work – The Internet page surfed by Alan
Winstanley
Emails and ISPs
August 2005
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PROJECTS AND CIRCUITS
Audio Systems - Communications by Raymond Haigh
A preamp with a.g.c. and a power amp with switched filtering
for communications and surveillance
Motor Amplifier by Ken Ginn
The power with which this unit can drive a heavy-duty motor
is astonishing!
Pain Monitor by John Becker
A patient welfare logger that also has other event logging
applications as in sailing, golfing or wildlife watching,
for example
Ingenuity Unlimited – Sharing your ideas with
others
Helix Thermostat; Meter Identifier; The Terminator
Back-to-Basics – Part 5 – Kitchen Timer and Room
Thermometer by Bart Trepak
Simple, easy-to-build circuits based on one or two CMOS
logic chips
SERIES AND FEATURES
Techno Talk by Mark Nelson
How buses communicate with bus-shelter time-to-wait displays
PIC N’ Mix by John Becker
How to get the DS1307 RTC chip working with PICs
Interface by Robert Penfold
Using a PC-controlled DAC as an ADC
Net Work – The Internet Page surfed by Alan
Winstanley
The delight of upgrading to ADSL!
Circuit Surgery by Alan Winstanley and Ian Bell
More code examples for using CompactFlash cards with PICs
July 2005
Purchase this issue
PROJECTS AND CIRCUITS
Cybervox by John Becker
How to linguistically challenge those evil Daleks in their
own dialect
Ingenuity Unlimited – Sharing your ideas with
others
One-Way Broken Beam Alarm; TV Standby Monitor
LF and VLF Converter by Raymond Haigh
Circuits for exploring the lower reaches of the
electromagnetic spectrum
Mult-clap Switch by Thomas Scarborough
A far more controllable and responsive unit than
conventional designs
Back to Basics – Part 4 - Doorchime and Electronic
Dice by Bart Trepak
Simple, easy-to-build circuits based on one or two CMOS
logic chips
SERIES AND FEATURES
Techno Talk by Mark Nelson
Squinting helps to beam radio signals round corners
Practically Speaking by Robert Penfold
A novice’s guide to project assembly tools
PIC 'n' Mix by Andrew Jarvis
Code reuse with Application Wizardry
Discovering PICS Reviewed by Robert Penfold
Reviewing a basic introduction to PIC project building and
programming
Net Work – The Internet Page surfed by Alan
Winstanley
Our new Chat Zone is successfully up and running with lots
of new features
Circuit Surgery by Alan Winstanley and Ian Bell
Examples of using CompactFlash cards with PICs; Onwards
Forever Onwards
June 2005
Purchase this issue
PROJECTS AND CIRCUITS
Super-Ear Audio Telescope by Tom Merryfield
Listen more clearly to those distant sounds
Radio Control Model Switcher by Ken Ginn
A radio controlled power switch for models and other devices
Ingenuity Unlimited – Sharing your ideas with
others
GPS/Audio Selector; Virtual Bomb
PIC Ultrasonic Radar by John Becker
Let your mobile robot listen to the landscape with this
experimental system
Back to Basics – Part 3 – Scarecrow and Digital Lock
by Bart Trepak
Simple, easy-to-build circuits based on one or two CMOS
logic chips
SERIES AND FEATURES
Circuit Surgery by Alan Winstanley and Ian Bell
Continuing the CompactFlash primer and outlining how to use
the interface
Catch the Wave by Mark Williamson
Can technology help to reduce tsunami life-loss?
Techno Talk by Mark Nelson
Playing tag – more applications for r.f. ID tags
Digital TV Switchover by Barry Fox
Updating us on the plans, and problems, for switching off UK
analogue TV
Programming PIC 18F Interrupts by Malcolm Wiles
Clarifying the datasheet for the PIC 18F family
Net Work – The Internet Page surfed by Alan
Winstanley
File download blues; broadband choices; 30Mbps – why are we
waiting?
Interface by Robert Penfold
Computer-controlled PWM power supply
May 2005
Purchase this issue
PROJECTS AND CIRCUITS
Crossword Solver by Mike Hibbett
Even The Times could become a doddle!
Ingenuity Unlimited – Sharing your ideas with
others
Adjustable Constant Current Source; Multi-Level Lock;
Electrical Field Detector
Back to Basics - Part 2 - Water Level Detector;
Burglar Alarm by Bart Trepak
Continuing our series of simple, easy-to-build circuits
based on one or two CMOS logic chips
20W Amplifier Module by Mark Stuart
Low-cost, single-chip, 20W wide-band low distortion
mono/stereo amplifier module
Smart Karts Part 8 - SK-4 Software by Owen Bishop
Discussing the final software routines for our mobile buggy
DAB Radio Aerial by Stef Niewiadomski
A loft-mounted quarter-wave ground plane antenna for digital
radio reception
SERIES AND FEATURES
Techno Talk by Mark Nelson
Green for Go – but why? It’s not so obvious!
Circuit Surgery by Alan Winstanley and Ian Bell
CompactFlash memory cards; and more about thermistors
Passive Component Testing by Mike Tooley BA
Getting the most out of your passive component analyser
Practically Speaking by Robert Penfold A novice’s
guide to switches
Net Work - The Internet Page surfed by Alan
Winstanley More on phishing and other Internet fraud, and
software safeguards; Chat Zone update
April 2005
Purchase this issue
PROJECTS AND CIRCUITS
Safety Interface by David Clark
A flexible safety interface for a PIC/Logic/PC to mains
power controller
Spontaflex 550 kHz to 30 MHz Radio Receiver by
Raymond Haigh
A modern-day update of Sir Douglas Hall’s famous Spontaflex
circuit
Back to Basics - Part 1 - Introduction; Fridge/Freezer
Door Alarm by Bart Trepak
A new series of simple, easy-to-build circuits based on one
or two CMOS logic chips
Ingenuity Unlimited – Sharing your ideas with
others
Breadboard Project Protector; Theremin Doorbell; Reverse
Battery Protection; Tri-State Controller
Smart Karts - Part 7 SK-4 - Son et Lumière! by
Owen Bishop
Our buggy metamorphs and PICs up the art of cybernetic
singing and dancing!
SERIES AND FEATURES
Interface by Robert Penfold
Computer-controlled power supply with current limiting
Circuit Surgery by Alan Winstanley and Ian Bell
Thermistors, and more about the FT232B USB chip
Techno Talk by Mark Nelson
Evolution of intelligent cateyes
Net Work - The Internet Page surfed by Alan
Winstanley
More on phishing and other Internet fraud
PIC N’ Mix by Andrew Jarvis
Mixing C and Assembler with Hi-Tech PICC Lite
PIC18F Microcontroller Family Introduction by
Malcolm Wiles
The recently introduced PIC18Fxx2 devices have many benefits
compared to the PIC16F87x family
March 2005
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PROJECTS AND CIRCUITS
Cat Flap by Thomas Scarborough
Electronically deter stray moggies from invading your cat’s
private door
Ingenuity Unlimited – Sharing your ideas with
others
NiCad Battery Discharger; Slumber Alarm; Audio Illusions;
Pico Prize Winners
Stereo Headphone Monitor by Terry de
Vaux-Balbirnie
Usable as an add-on for last month’s Sound Card Mixer or as
a stand-alone unit
PIC Electric MK2 – 2 by John Becker
Describing the software which monitors the cost of running
your mains electrical appliances
PIC-based Bingo Box by David Coward
PIC those random numbers without a traditional bag!
Smart Karts – Part 6 - SK-3 Push and Grab Software
by Owen Bishop
Discussing the third set of software routines for our
PIC-based buggy
SERIES AND FEATURES
Circuit Surgery by Alan Winstanley and Ian Bell
The basics of square waves, and of handling crimped
connectors
Techno Talk by Andy Emmerson
Even telephone systems are prone to virus infection
PIC 'n' Mix by Andrew Jarvis
High level languages – a first visit to the C side!
Net Work - The Internet Page surfed by Alan
Winstanley
Topical news on eBay and related frauds
Practically Speaking by Robert Penfold
A novice’s guide to front panel labelling without a PC
TK3 Simulator and PIC18F Upgrade by John Becker
Detailing the latest additions to our PIC assembly and
programming toolkit
February 2005
Purchase this issue
PROJECTS AND CIRCUITS
PIC Electric MK2 by John Becker
Monitor the cost of running your mains electrical appliances
PIC-based Sneaky by Mike Boyden
A covert communication system for magicians and spies!
Sound Card Mixer by Terry de Vaux-Balbirnie
Bring “life” to your computerised live recordings
Ingenuity Unlimited – Sharing your ideas with
others
Digital Stop Clock; Light and Heat Sensor
Smart Karts – Part 5 - Pushing and Grabbing by
Owen Bishop
Our mobile robot morphs into SK-3 and gains a grabber and
pusher
SERIES AND FEATURES
Techno Talk by Andy Emmerson
Wireless Internet services via tethered balloons – or just
pie in the sky?
PIC 'n' Mix by Andrew Jarvis
Read the script – free development software!
Circuit Surgery by Alan Winstanley and Ian Bell
Continuing our short series on the Universal Serial Bus
(USB) with a suggested circuit
E–Blocks AND Flowcode V2.0 Reviews by Robert
Penfold
Two systems which teach the easy understanding of
electronics through dedicated modules under readily
reprogrammable software control
Interface by Robert Penfold
Simple digital to analogue conversion for PCs
Net Work - The Internet Page surfed by Alan
Winstanley
Beware of eBay scammers
January 2005
Purchase this issue
PROJECTS AND CIRCUITS
Speed Camera Watch by Mike Hibbett
Be forewarned about known hazards while you’re driving
Light Detector by Anthony H. Smith B.Sc. (Hons)
An unusual design which uses an l.e.d. both as the light
sensor and indicator
Gate Alarm by Thomas Scarborough
Baffle callers to your home with this low-cost, delayed
action versatile alarm
Smart Karts - Part 4 - Software development for the
SK2 Mobile Robot by Owen Bishop
Discussing the second set of software routines for our
PIC-based buggy
Ingenuity Unlimited – Sharing your ideas with
others
Tri-State Logic Probe; 64 L.E.D. Sequencer; L.E.D. Charging
Indicator
SERIES AND FEATURES
Techno-Talk by Andy Emmerson
Trust Misplaced – Are you in danger of unwittingly giving
away highly personal information about yourself?
Circuit Surgery by Alan Winstanley and Ian Bell
Continuing our short series on the Universal Serial Bus
(USB)
Practically Speaking by Robert Penfold
A novice’s guide to connector types
PIC 'n' Mix by Andrew Jarvis
PIC12F629/75 – programming from a 16F perspective
PicoScope 3205 Review by Robert Penfold
Putting Pico Technology’s dual-trace PC oscilloscope through
its superb paces
Net Work - The Internet Page surfed by Alan
Winstanley
More about domain names and possible pitfalls
32-Bit Signed Integer Maths for PICs by Peter
Hemsley
An excellent suite of maths routines to simplify your PIC
programming ambitions
December 2004
Purchase this issue
PROJECTS AND CIRCUITS
Super Vibration Switch by Thomas Scarborough
So sensitive that even dropping a pin can trigger it
Versatile PIC Flasher MK2 by Steve Challinor
Put your favourite flasher under environmental control!
Wind Direction Indicator by Mike Feather
Simple mechanical monitoring of relative wind direction
through 16-segments
Smart Karts - Part 3 - Bumpers, Light Sensor and
Proximity Detector by Owen Bishop
Adding three levels of extra sensory perception to your
mobile buggy!
Ingenuity Unlimited – Sharing your ideas with
others
Simple MW Radio; PC Keyboard Tester
SERIES AND FEATURES
Techno Talk by Andy Emmerson
Talking in Code – how VoIP is transforming the telephone
network
Circuit Surgery by Alan Winstanley and Ian Bell
Commencing a short series on the Universal Serial Bus (USB)
Net Work - The Internet Page surfed by Alan
Winstanley
Transferring domain names between ISPs
Interface by Robert Penfold
Simple voltage control using your PC
PIC 'n' Mix by Andrew Jarvis
More PIC devices for TK3: PIC12F629/75
Light-Emitting Diodes - Part 4 - LED drivers and
unusual uses for LEDs by Anthony H. Smith, BSc. (Hons)
Concluding our short series enlightning you about LEDs
November 2004
Purchase this issue
PROJECTS AND CIRCUITS
Thunderstorm Monitor by Thomas Scarborough
An early warning monitor of pending thunderstorms
Logic Probe by Anthony H. Smith, BSc. (Hons)
A handy tool for tri-state monitoring of logic circuits
M.W. Amplitude Modulator by Stef Niewiadomski
Enjoy your listening as you used to through your radios of
bygone eras
Ingenuity Unlimited – Sharing your ideas with
others
CCO Metal Detector; Robo Voice Effects; Visual Capacitance
Gauge
Smart Karts – Part 2 – On Manoeuvers and Software
Development by Owen Bishop
Discussing the first software routines for our PIC-based
mobile buggy
SERIES AND FEATURES
Circuit Surgery by Alan Winstanley and Ian Bell
Current Flow; Diode Operation; Zener Diodes
Techno Talk by Andy Emmerson
Digital techniques may revive the voice of Queen Victoria!
Practical Electronics 40th Anniversary by John
Becker
A brief commemoration of our ancestral sister’s origin
Light Emitting Diodes – Part 3 – Boosters, Alternative
Flashers and Multicolour L.E.D.s by Anthony H. Smith,
BSc. (Hons)
Continuing our short series enlightening you about l.e.d.s.
PIC 'n' Mix by Andrew Jarvis
Introducing some new PICs to TK3 – the PIC16F87xA Family
Floating Point Maths for PICs by Malcolm Wiles
How to use floating point maths with PIC16Fx
microcontrollers
Net Work – The Internet Page surfed by Alan
Winstanley
Cybersquatting; Typosquatting; Pressure Selling; Domain
Slamming
October 2004
Purchase this issue
PROJECTS AND CIRCUITS
Moon and Tide Clock Calendar by John Becker
A pictorial guide to tracking moon and tide states
throughout the year
Ingenuity Unlimited – Sharing your ideas with
others
High-Efficiency L.E.D. Torch; Temperature Controller;
Glitch-Free Switching
Volts Checker by Anthony H. Smith, BSc (Hons)
A handy tester suitable for universal a.c. and d.c. supplies
EPE Theremin by Robert Penfold
Create “handsfree” weird and wonderful music!
Smart Karts - Part 1 - Basic Construction by Owen
Bishop
Commencing construction of a PIC-based mobile buggy with
various sensors and actuators. Suitable for tailoring to
your needs!
SERIES AND FEATURES
Techno Talk by Andy Emmerson
Daddy or Chips? Coping with telephone bandwidth choices
Interface by Robert Penfold
Introducing VB.Net and VB 2005 Express
Net Work - The internet Page surfed by Alan
Winstanley
King of the Domains; DIY Domains
PIC 'n' Mix by Andrew Jarvis
Hex files reopened: Record Viewer and running repairs
Circuit Surgery by Alan Winstanley and Ian Bell
Component marking explained; More on Super Glue; Electrical
Mains Safety
Light Emitting Diodes – Operation and Applications –
Part 2 - Biasing and Interfacing by Anthony H. Smith,
BSc. (Hons)
Continuing our short series intended to answer all those
l.e.d. questions you’ve longed to ask
September 2004
Purchase this issue
PROJECTS AND CIRCUITS
PIC-based Rainbow Lighting Controller by David
Geary
Brighten up your garden’s night-time colour scheme
Ingenuity Unlimited – Sharing your ideas with
others
Betty’s Flasher; Water Safety Lock; Audio Frequency
Synthesiser; Line-O-Light; Automatic Morse Beacons;
Fine-Tuning for DC Receivers
PIC-based Radio Control Failsafe by Ken Ginn
How to keep your RC models safely controlled and prevent
mayhem!
EPE Wart Zapper by Thomas Scarborough
Exterminate those unwanted warts!
PIC-based Alphamouse Game by John Becker
Let that mouse sort out those shifty characters!
SERIES AND FEATURES
Techno-Talk by Andy Emmerson
From POTS to PANS – telephone technology has reached its
use-by date
Net Work - The Internet Page surfed by Alan
Winstanley
Domains and IP Addresses; Broadband Turn-On
Circuit Surgery by Alan Winstanley and Ian Bell
Back-E.M.F. Protection; Overrated L.E.D.s
Practically Speaking by Robert Penfold
A novice’s guide to buying and stocking-up components
PIC 'n' Mix by Andrew Jarvis
Hex files – the truth is out there!
Light-Emitting Diodes – Operation and Applications –
Part 1 - Basic Principles by Anthony H. Smith, BSc.
(Hons)
Commencing a short series intended to answer all those
l.e.d. questions you’ve longed to ask
High-Speed Binary to Decimal for PICs by Peter
Hemsley
It really is amazingly fast!
August 2004
Purchase this issue
PROJECTS AND CIRCUITS
PIC-based EPE Scorer by David Coward
Score with the technological solution for quizmasters and
sportsmasters!
Keyring LED Torch (Flashlight) by John Ellis
An “easy-build” torch that will give many hours of pleasure
EPE PIC Magnetometry Logger - Part 2 by John
Becker
Logging your search for magnetic fields that might reveal
hidden artifacts
Simple FM Radio by Raymond Haigh
An out-of-the-rut domestic receiver
Ingenuity Unlimited – Sharing your ideas with
others
Let There Be Light; Manual Bit-Stream Selector; Visual
Illusion
SERIES AND FEATURES
Circuit Surgery by Alan Winstanley and Ian Bell
In the LED Driving Seat – answering basic LED questions
Techno Talk by Andy Emmerson
The art of disguise now plays its role in the comms arena
Net Work - The Internet Page surfed by Alan
Winstanley
Comments on PC upgrading and software selection
Teach-IN 2004 - Part 10 - Motor Control by Max
Horsey
Concluding our 10-part tutorial and practical series – in
which we have been showing how to apply electronics
meaningfully
PIC 'n' Mix by Andrew Jarvis
“Hello” again – simulators, timers and finishing touches
PIC to PS/2 Mouse and Keyboard Interfacing by John
Becker
How to use a PS/2 keyboard or PS/2 mouse with your PIC
designs
Interface by Robert Penfold
More about accessing a PC’s parallel port via INPOUT32.DLL
July 2004
Purchase this issue
PROJECTS AND CIRCUITS
Portable Mini Alarm by Andy Flind
Covertly monitor your property and distinguish between
loiterers and passers-by
Inqenuity Unlimited Sharing your ideas with
others.
Multiple Range Ammeter; Repeatable Logic Probe; Model
Theatre Lighting Dimmer
Bongo Box by David Clark
PIC up the rhythm with our MIDI finger drum!
EPE PIC Magnetometry Logger – Part 1 by John
Becker
Logging your search for magnetic fields that might reveal
hidden artifacts
Hard Drive Warbler by Terry de Vaux-Balbirnie
Monitor your PC’s hard drive activity from a distance
SERIES AND FEATURES
Techno Talk by Andy Emmerson
Electrotherapy developments through the ages, and some
possible future progress
Circuit Surgery by Alan Winstanley and Ian Bell
Dual-rail power supplies; Superglue
Teach-In 2004 – Part 9 - Lock and Alarm Systems by
Max Horsey
Continuing our 10-part tutorial and practical series – how
to apply electronics meaningfully
PIC ‘n’ Mix by Andrew Jarvis
“Hello World” for PICs: instruction cycles, masks and
clockwork l.e.d.s
Net Work – The Internet Page surfed by Alan
Winstanley
More on web search engines, plus a look at Gmail
Making Front Panel Overlays by Andrew Martell
Making low-cost professional-looking front panel overlays
using your PC
Practically Speaking by Robert Penfold
A novice’s guide to troubleshooting project construction
problems
June 2004
Purchase this issue
PROJECTS AND CIRCUITS
PIC Quickstep by Andy Flind
A Simple and versitile stepper motor driver and controller.
Inqenuity Unlimited Sharing your ideas with
others.
White Noise Generator; Pressure Pad; Dual-Mode Charger;
Simple Siren
Crafty Cooling by Terry de Vaux-Balirinie
Make a drink can cooler and learn about Peltier and Seebeck
effects.
Body Detector Mk2 by Thomas Scarborough
Create your own invisible defense shield!
PIC-based MIDI Synchronome by David Clark
Improve your musical time-keeping when recording MIDI
instruments
SERIES AND FEATURES
Clinical Electrotherapy by Ed Bye
Electrotherapy developments through the ages, and some
possible future progress
Techno Talk by Andy Emmerson
Not surprisingly, self-destructing electronic products are a
mixed blessing!
Interface by Robert Penfold
More practical suggestions for case-modding your PC
PIC ‘n’ Mix by Andrew Jarvis
A potted history of EPE Toolkit and an overview of other
low-cost PIC programmers
Net Work – The Internet Page surfed by Alan
Winstanley
Google, Alta Vista, MSN and Yahoo! web search engines.
Tecah-In 2004 – Part 8 – Movement Detection by Max
Horsey
Continuing our 10-part tutorial and practical series – how
to apply electronics meaningfully
Circuit Surgery by Alan Winstanley and Ian Bell
Power Op.Amps; Servo Controller; Brazen Terminology; Current
Flow and Outputs
May 2004
Purchase this issue
PROJECTS AND CIRCUITS
Low Frequency Wien oscillator - Part 1 by Edwin
Chicken
A Simple Low-cost sinusoidal signal generator for your
workshop.
In-car laptop PSU by Terry de Vaux-Balirinie
Laptop operation for the outwardly mobile.
Beat Balance Metal Detector by Thomas Scarborough
A new gener of detector that is inexpensive and easy to
build.
Inqenuity unlimited Sharing your ideas with others
Mouse Trapped Indicator; Proximity Switch; Versatile D.C.
Power Controller.
Experimental seismograph Logger - Part 2 by John
Becker
Discussing the softwarre and use of our long-term data
logger.
SERIES AND FEATURES
Circuit Surgery by Alan Winstanley and Ian Bell
More on power MOSFETs; Identifying Capacitor Values.
Techno Talk by Andy Emmerson
Smellyphones, Smellyvision, and solitons-a foul future for
phones?
Net Work – The Internet Page surfed by Alan
Winstanley
On the E-hotspot; Pole-axed; Under Pressure; Worring Trend.
Teach-In 2004 – Part 7. Moisture detection and radio
links by Max Horsey
Continuing our 10-part tutorial and practical series - how
to apply electronics meaningfully.
Coping with Lead-Free Solder By Bill Mooney
What are the alternatives to lead-based solder when it is
banned in 2006?.
PIC n' Mix by Andrew jarvis
PICing up the introductory threads to our latest PIC
resource.
Practically Speaking by Robert Penfold
A novice's guide to understanding circuit diagram symbols.
April 2004
Purchase this issue
PROJECTS AND CIRCUITS
Loft Light Alarm by Bart Trepak
Darken your lightness! A low-cost energy saving versatile
lights-on reminder.
EPE Experimental Seismograph Logger - Part 1 by
john Becker
Long-term data recording of the Earth's rock and roll event.
PIC Moon Clockby jonathan Hare
A Timely display for romantics and Werewolves.
Infra-Guard Monitor by Terry de Vaux-Balbirnie
In-car protection for young children.
Ingenuity Unlimited Sharing your ideas with other
Simple Frequency Meter: Decade Power Supply
SERIES AND FEATURES
Circuit Surgery by Alan Winstanley and Ian Bell
Back to Inventers; Modified Sinewaves; Cover Your Tracks
Techno Talk by Andy Emmerson
Power in your pocket-can fuel cells save the planet yet?
USB-to_PICInterface by John Waller
Investigating a Universal Serial Bus (USB) to PIC
microcontroller interface, the DLP-245PB
New Technology Update by Ian Poole
What's in the development pipeline for memory technologies?
Interface by Robert Penfold
Practical Suggestions for case-modding your PC
Net Work – The Internet Page surfed by Alan
Winstanley
Track those sites; Pop Gun;More Accessible-less arty
Teach-In 2004 – Part 6. Sound Level measurment by
Max Horsey
Continuing our new 10-part tutorial and practical series –
how to apply electronics meaningfully
March 2004
Purchase this issue
PROJECTS AND CIRCUITS
Bat Band Converter by Thomas Scarborough
Listen-in to the world of bats with this low-cost b.f.o.
detector
Emergency Stand-by Light by Terry de
Vaux-Balbirnie
A 12V battery-powered home emergency light using a
low-energy mains lamp
PIC-based MIDI Health Check by David Clark
Check out your MIDI home studio with this
transmitter-reciever pair
PIC -based Mixer For RC Planes by Marius Bensch
A Flight command mixer for delta and V-tail radio-controlled
model planes
Ingenuity Unlimited – Sharing your ideas with others
Beat Balance Metal Detector; Simple Signal Injector; Sonic
Control for Toys; Camera Power; Yes-No Indicator; Pico
Prizes Winners
SERIES AND FEATURES
Circuit Surgery by Alan Winstanley and Ian Bell
Explaining Diacs and Triacs; Parallel Regulators; Please
take Note - MOSFET Amplifiers
Techno Talk by Andy Emmerson
Disruptive Technologies - bad news for some, good news for
others
The Amateur Scientist CD Review by Clive (Max)
Maxfield
Reviewing the Amateur Scientist 2.0 Science Fair Edition CDs
- every Amateur Scientist column ever published
New Technology Update by Ian Poole
Poor soldering is the cause of circuit failures even for
professionals
Practically Speaking by Robert Penfold
A novice's guide to understanding how to mount components on
a circuit board
Net Work – The Internet Page surfed by Alan
Winstanley
Chat Zone Shenanigans; Outlook Express Back-up
Teach-In 2004 – Part 5. Logic gates as Switches by
Max Horsey
Continuing our new 10-part tutorial and practical series –
how to apply electronics meaningfully
February 2004
Purchase this issue
PROJECTS AND CIRCUITS
PIC LCF Meter by John Becker
Simple monitoring of inductance, capacitance and frequency
values
Sonic Ice Warning by Terry de Vaux-Balbirnie
Don’t let the icy road catch you out!
Ingenuity Unlimited – Sharing your ideas with others
Mantelpiece Anemometer; Short Circuit Alarm; Blue Flash;
Stepper Motor Driver; Audio Signal Generator
Jazzy Necklace by Thomas Scarborough
Be the light and soul of your party or disco!
PIC Tug-Of-War by Bart Trepak
PIC up the battle rope without the brute force!
SERIES AND FEATURES
Techno Talk by Andy Emmerson
How safe is your mobile phone? A powerful caution about
batteries
Surface Mount Devices by Lyn Jones
How to use SMDs – it’s easier than you might think
Circuit Surgery by Alan Winstanley and Ian Bell
MOSFET Amplifier Basics; CMOS or Bipolar Timers; Anti-Static
Desoldering
New Technology Update by Ian Poole
Improvements in capacitor technology may not hit the
headlines, but they are still happening!
Interface by Robert Penfold
Further PC serial port use of INPUT32.DLL
Net Work – The Internet Page surfed by Alan
Winstanley
Have spammers now been given their exclusion orders?
Teach-In 2004 – Part 4. Experimenting with logic gates
by Max Horsey
Continuing our new 10-part tutorial and practical series –
how to apply electronics meaningfully
January 2004
Purchase this issue
PROJECTS AND CIRCUITS
PIC-based Car Computer by Mike Hibbett
An aid for motorists who don’t live with a mechanic!
Bedside Nightlight by Owen Bishop
Another in our occasional Top Tenners series - A two-in-one
design that will bring comfort and joy to your youngster’s
room.
PIC-based Watering Timer by Les Clarke
Keep your plants in pristine condition before you PIC them!
Practical Radio Circuits – Part 8 - The Superhet:
Prescaler, Mixers and Oscillators by Raymond Haigh
A double-conversion superhet receiver for SW bands
Ingenuity Unlimited – Sharing your ideas with others
Super Static Snooper
SERIES AND FEATURES
Teach-IN 2004 – 3. Experimenting with opamps by
Max Horsey
Continuing our new 10-part tutorial and practical series –
how to apply electronics meaningfully
Techno Talk by Andy Emmerson
Blurred Vision for Telly. Digital TV and its quality
New Technology Update by Ian Poole
IntelliFET devices improve power supply protection; New fuel
cell developments
Net Work - The Internet Page surfed by Alan
Winstanley
Newsgroups; Digging Beyond Google
Practically Speaking by Robert Penfold
A novice’s guide to understanding wires and cables
GPS to PIC and PC Interfacing by John Becker
How to extract data from a GPS handset and use it in your
PIC and Visual Basic 6 programs
Circuit Surgery by Alan Winstanley and Ian Bell
Defining Source and Sink; Electric Meter; Linear MOSFETs
December 2003
Purchase this issue
PROJECTS AND CIRCUITS
PIC NIM Machine by David Coward
Nimbly PIC a winning pile! Latest incarnation of the ancient
Chinese game
Ingenuity Unlimited – Sharing your ideas with others
Bio-feedback Tension Monitor; L.E.D. Bargraph; Cricket Overs
Counter
PIC Virus Zapper MK2 by Andy Flind
An alternative method that could keep those bugs at bay!
Christmas Cheeks by Thomas Scarborough
A novel technological way to decorate you for the
festivities!
Practical Radio Circuits – Part 7 - The Superhet:
Prescaler, Mixers and Oscillators by Raymond Haigh
Demystifying the most dominant and universal receiving
technology – and how to build your own set
SERIES AND FEATURES
Techno Talk by Andy Emmerson
Seedy CDs and Dodgy DVDs
Teach-In 2004 – Part 2 - Transistor Circuits by
Max Horsey
Continuing our new 10-part tutorial and practical series –
how to apply electronics meaningfully
New Technology Update by Ian Poole
Doped diamonds could become commercially viable
semiconductors
Electrotherapy - A Brief History by Stan Hood
A personal view of the use of electricity in medicine – from
Galvani to Hulda Clark
Circuit Surgery by Alan Winstanley and Ian Bell
More on Spice circuit simulation; Ultraviolet L.E.D.s
Interface by Robert Penfold
Direct INPOUT32.DLL control of PC serial ports
Net Work - The Internet Page surfed by Alan
Winstanley
Can Netscape rise from the ashes?
High-Speed Decimal-to-Binary for PICs by Peter
Hemsley
Speed up your PIC’s decimal data conversion and compression
November 2003
Purchase this issue
PROJECTS AND CIRCUITS
PIC Random LED Flasher by Andy Flind
Enjoy the fun of an interesting and attractive pattern
display
Ingenuity Unlimited – Sharing your ideas with others
Three-Component Metal Detector; Emergency Light; Power
Supply Tester
Anyone At Home? by Owen Bishop
Logically deter those shifty characters eyeing up your
house!
Another Top Tenner project: Cardboard Clock by
Michael McLoughlin
An intriguing and novel way in which you can tick-off time
passing!
Practical Radio Circuits – Part 6 - Single-sideband
and direct conversion
by Raymond Haigh, Another superb receiving system for the
set builder and experimenter
SERIES AND FEATURES
Techno Talk by Andy Emmerson
Why is lightning so potent, and can you protect your gizmos?
Teach-In 2004 – Part 1 - At the Beginning by Max
Horsey
The first feature in our new 10-part tutorial and practical
series – how to apply electronics meaningfully
New Technology Update by Ian Poole
Floating Gate Analogue technology improves voltage reference
devices
Circuit Surgery by Alan Winstanley and Ian Bell
Long delays; cooling fans; more on SPICE; opamp
enlightenment
Practically Speaking by Robert Penfold
A novice’s guide to understanding semiconductor markings
Net Work - The Internet Page surfed by Alan
Winstanley
Oh for wireless webbing...! New EPE Downloads site
October 2003
Purchase this issue
PROJECTS AND CIRCUITS
RC Car Wars by John Lanigan
It’s a bit like Robot Wars without the expense or
destruction!
Serial Interface for PICS AND VB6 by Joe Farr
Serial hardware plus stand-alone licence-free OCX software
Ingenuity Unlimited – Sharing your ideas with
others
Robo-Voice; Stereo Image Enhancer
Spooky Bug by Owen Bishop
Hocus-pocus, get your Hallowe’en party off to a shriek!
Another in our occasional Top Tenner series of simple
low-cost circuits
Practical Radio Circuits – Part 5 - Super-regeneration
- by Raymond Haigh
A highly sensitive receiving system, plus buffer amplifier,
for the set builder and experimenter
SERIES AND FEATURES
Techno Talk by Andy Emmerson
How new is new – especially in the mobile phones arena?
New Technology Update by Ian Poole
Improved current monitoring devices
Interface by Robert Penfold
PC parallel port interfacing with VB and the new universal
INPOUT32.DLL for Windows
Net Work – The Internet Page surfed by Alan
Winstanley
ADSL broadband alternatives
Circuit Surgery by Alan Winstanley and Ian Bell
Concluding our introduction to SPICE simulation software
PIC Breakpoint by Richard Hinckley
An excellent debugging tool offering realtime PC display of
all PIC registers
September 2003
Purchase this issue
PROJECTS AND CIRCUITS
PIC-A-Colour by Nick Dossis
PIC your wits against a colourful code-setting master mind!
Ingenuity Unlimited - Sharing your ideas with
others
Thermal Charge Monitor; Infra-red Body Detector; Divider
Feedback
Vibration Alarm by Owen Bishop
Guards your property by sounding an alarm if moved - another
in our occasional
“Top Tenner” series of simple low-cost circuits.
Priority Referee by Owen Bishop
Fair play is ensured with this novel quiz monitor - another
simple “Top Tenner” circuit
EPE PIC Met Office - Part 2 - by John Becker
Concluding our totally solid-state alternative to sea-weed
and proverbs!
Practical Radio Circuits - Part 4 - Tuning
systems, coils and coil packs for general coverage and the
amateur bands by Raymond Haigh
More practical circuits for the set builder and experimenter
SERIES AND FEATURES
Techno Talk by Andy Emmerson
More Connected homes - the brass tacks about networked
domesticautomation and entertainment
New Technology Update by Ian Poole
A new hypersonic sound system is set to revolutionize the
audio industry
Circuit Surgery by Alan Winstanley and Ian Bell
Continuing our introduction to SPICE simulation software
Using the PIC’S “HIGH” Operator by Malcolm Wiles
Simpler programming for segmented PIC architectures
Practically Speaking by Robert Penfold
A novice’s guide to the tools needed for electronics
construction
Net Work - The Internet Page - surfed by Alan
Winstanley
Broadband - will BT’s coverage ever be universal?
August 2003
Purchase this issue
PROJECTS AND CIRCUITS
Alarm System Fault Finder by Mike Richards
A low-cost design that helps locate intermittent sensor
faults, silently!
EPE PIC Met Office - Part 1 - by John Becker
Totally solid-state alternative to seaweed and proverbs!
Ingenuity Unlimited - Sharing your ideas with
others
Audio Noise Generator; Day-Night Switch
Master/Slave Intercom by Owen Bishop
Nothing mobile or wireless about this chat line! Another in
our occasional Top-Tenner series of simple low-cost circuits
Electronic Two-Up by Owen Bishop
A second Top-Tenner project to enjoy this month! Chance your
luck with this novel variant of a "down-under" game.
Practical Radio Circuits - Part 3 - Regenerative
Receivers by Raymond Haigh
Another practical circuit for the set builder and
experimenter
SERIES AND FEATURES
Interface by Robert Penfold
Optical heart-rate sensing interface for your PC
Techno Talk by Andy Emmerson
Connected homes - networked domestic automation and
entertainment
Net Work - The Internet Page surfed by Alan
Winstanley
Introducing our new updated web site
Digital Command Control for Model Trains by John
Waller
How the computer age has caught up with controlling model
trains
Circuit Surgery by Alan Winstanley and Ian Bell
A brief introduction to SPICE while solving an inverter
problem
New Technology Update by Ian Poole
Super-cool diamonds may be a major milestone in
superconductor development
July 2003
Purchase this issue
PROJECTS AND CIRCUITS
EPE Mini Metal Detector by Thomas Scarborough
Search out those hidden artifacts with a wrist-band metal
detector
Low Range Ohmmeter Adaptor MK2 by Lyn Jones
Improved accuracy when measuring low resistance
Practical Radio Circuits - Part 2 - Regeneration,
Q-Multiplier, Reflex Radio, Speaker Amp - by Raymond
Haigh
Dispelling the mysteries of radio. A series featuring a
variety of practical circuits for the set builder and
experimenter
Top Tenners: Ultimate Egg Timer by Owen Bishop
How to avoid feeling hen-pecked about boiling eggs properly!
Another design in our occasional series of simple circuits
that can be built for around
Ingenuity Unlimited - Sharing your ideas with
others
Pedometer; Astronomy Torch; Optical Illusion
PICronos LED Wall Clock - Part 2 - by John Becker
Checking-out and setting-up this grand-scale timekeeper!
SERIES AND FEATURES
Techno Talk by Andy Emmerson
Wired Wireless - Crazy or What?
Circuit Surgery by Alan Winstanley and Ian Bell
Why a 50 Ohm connector is so called; Normally open and
closed contacts
New Technology Update by Ian Poole
The introduction of 3D LCD technology should give new
impetus to the display market
Practically Speaking by Robert Penfold
Constructor’s guide to mounting assembled boards in
enclosures
Net Work - The Internet Page surfed by Alan
Winstanley
How pally is PayPal?
Flowlog Lite Review by Robert Penfold
Putting the data logging, control, and measurement add-on
for PCs through its paces
June 2003
Purchase this issue
PROJECTS AND CIRCUITS
PIC-based FIDE Pedometer by Mike Boyden
Keeping track of how far you’ve walked!
Practical Radio Circuits - Part 1. Introduction,
Simple Receivers and Headphone Amp by Raymond Haigh
Dispelling the mysteries of radio. A new series featuring a
variety of practical circuits for the set builder and
experimenter
Back to Basics - Part 5. Mini Theremin; Twilight
Switch by Bart Trepak.
Concluding our illustration of how transistors can create
useful designs
Ingenuity Unlimited
Car Alarm Battery Saver
PICronos LED Wall Clock by John Becker
Ancient and modern techniques display timely brilliance on a
grand scale!
SERIES AND FEATURES
Techno Talk by Andy Emmerson
Powerline comms - boon or bogey?
Circuit Surgery by Alan Winstanley and Ian Bell
More about reading circuit diagrams
New Technology Update by Ian Poole
Adding silicon to Li-Ion battery electrodes improves charge
level performance
Interface by Robert Penfold
MSCOMM voltage levels, and batch counting
Net Work - The Internet Page surfed by Alan
Winstanley
Crediting PayPal
May 2003
Purchase this issue
PROJECTS AND CIRCUITS
Super Motion Sensor by Thomas Scarborough
A highly responsive design that even detects a single finger
moving at five metres!
Ingenuity Unlimited hosted by Alan Winstanley
Fully Automatic Egg Timer; Heart Rate Monitor; Microwatt
L.E.D. Flasher
Door Chime by Bart Trepak
Give your front door that “ding-dong” appeal of yesteryear!
Back to Basics - Part 4. by Bart Trepak.
Illustrating how transistors can create useful designs: This
month's projects are a Live Wire Detector and Medium Wave
Radio.
Earth Resistivity Logger - Part 2 by John Becker
Describing the software that helps locate the hidden
mysteries of our ancestors
SERIES AND FEATURES
Techno Talk by Andy Emmerson
Barcodes are set to disappear!
New Technology Update by Ian Poole
Improved antennae materials enhance mobile phone comms
Circuit Surgery by Alan Winstanley and Ian Bell
Digital timing without glitches; More on circuit diagram
symbols
Net Work - The Internet Page surfed by Alan
Winstanley
Sniping a deal on eBay; Paying by Paypal
Practically Speaking by Robert Penfold
Constructor’s guide to building circuits on plain matrix
board
April 2003
Purchase this issue
PROJECTS AND CIRCUITS
Atmospherics Monitor by Brian Lucas
Tune in to the sounds of the heavens in turmoil!
PIC-based Intelligent Garden Lights Controller by
Max Horsey
An easy-build lights controller that knows when it’s time to
switch off
Back To Basics - Part 3 - by Bart Trepak
Illustrating how transistors can create useful designs: This
month’s projects are a Touch Light and a Plant Watering
Reminder.
Ingenuity Unlimited hosted by Alan Winstanley
Three-State Vehicle Probe; PCB Drill Controller; StyloQIC
PIC-based Earth Resistivity Logger - Part 1 - by
John Becker
Help your local archaeological society to locate the hidden
mysteries of our ancestors
SERIES AND FEATURES
Techno Talk by Andy Emmerson
Optical communications without fibres
New Technology Update by Ian Poole
Improved processing promises increased memory cell capacity
Circuit Surgery by Alan Winstanley and Ian Bell
How to read circuit diagrams; CMOS opamp solutions
Interface by Robert Penfold
Update on direct control of PC serial lines using MSCOMM
Net Work - The Internet Page surfed by Alan
Winstanley
Bargaining on eBay
March 2003
Purchase this issue
PROJECTS AND CIRCUITS
Wind-up Torch (Flashlight) Mk II by Thomas
Scarborough
A new twist for providing light without a battery!
PIC-based Driver Alert by Josh Arkell, Adam
Wolley, and Max Horsey
A thinking time reaction tester - award-winning design in
the Young Electronic Designer Awards 2002.
200 kHz Function Generator by Andy Flind
Versatile test gear that generates sine, square and
triangle-wave outputs, with controllable amplitude.
Ingenuity Unlimited hosted by Alan Winstanley
Random Doorbell; Headphone Amplifier; Low Battery Indicator;
Pico Prize Winners.
Back to Basics - Part 2. Metal Detector; Simple Timer
by Bart Trepak
Illustrating how transistors can create useful designs.
SERIES AND FEATURES
Techno Talk by Andy Emmerson
Bendy Batteries for Flexible Power.
Circuit Surgery by Alan Winstanley and Ian Bell
Surface Mount Reworking; Bleeder Resistors; More on Motors.
New Work - The Internet Page surfed by Alan
Winstanley
Buy Now on eBay!
LCR Passive Component Analyzer by Andy Flind
An appreciative examination of Peak’s new handheld analyzer
for measuring resistors, capacitors and inductors.
Practically Speaking by Robert Penfold
A constructor’s guide to mounting loudspeakers, resonators
and meters in the front panels of enclosures.
New Technology Update by Ian Poole
Printed plastic transistors and organic LEDs could provide
truly flexible display screens.
February 2003
Purchase this issue
PROJECTS AND CIRCUITS
Brainibot Buggy by Mark Stuart and Peter Balch
A low-cost, easy-build buggy that has a mind of its own!
Wind Tunnel by John Becker
Scientifically investigate Nature’s second essential element
Ingenuity Unlimited hosted by Alan Winstanley
Single-Cylinder Ignition; Reaction Timer
Back to Basics - Part 1 - Hearing Aid, Audio Power
Amplifier by Bart Trepak
Illustrating how transistors can create useful designs
Tesla High Voltage Transformer by Raymond Haigh
Spectacularly create your own sizzling DIY lightning!
SERIES AND FEATURES
New Technology Update by Ian Poole
Carbon nanotubes are likely to have a serious impact on
semiconductor technology
Circuit Surgery by Alan Winstanley and Ian Bell
More on MOSFETs; Switching Speed of A.C. Motors
In the Bag by Terry de Vaux-Balbirnie
Have you ever wondered how your car airbags work?
Net Work - The Internet Page surfed by Alan
Winstanley
The Last Keyword in Sales; Favourite Sites
Techno Talk by Andy Emmerson
Hotspots to the Rescue
Interface by Robert Penfold
Direct control of PC serial lines using MSCOMM
January 2003
Purchase this issue
PROJECTS AND CIRCUITS
EPE Minder by Terry de Vaux-Balbirnie
Looks after your personal belongings - maybe even your
children!
FM Frequency Surfer by Tom Merryfield
Trawl-in those unusual contacts on the 88MHz to 125MHz band
Wind Speed Meter by John Becker
Ultrasonic techniques replace mechanics and calibration
Ingenuity Unlimited hosted by Alan Winstanley
Frequency Switch; Dual Action Regulator; Obstacle sensing
for Small Robots
PICAXE Projects - Part 3. Chaser Lights by Max
Horsey
Concluding the three-part series using PICAXE devices - PIC
microcontrollers that do not need specialist knowledge, or
programming equipment
SERIES AND FEATURES
Circuit Surgery by Alan Winstanley and Ian Bell
All about MOSFETs
New Technology Update by Ian Poole
Semiconductors based on indium phosphide challenge those
made from silicon and gallium arsenide
Practically Speaking by Robert Penfold
Constructor’s guide to creating case panel legends with a PC
Techno Talk by Andy Emmerson
UWB - Wireless on Steroids
Who Really Invented the Transistor? by Andy
Emmerson
Conflicting claims and some revisionist history
PIC Micros and Computer GOTOs by Malcolm Wiles
Two sophisticated programming techniques for advanced PIC
users
Net Work - The Internet Page surfed by Alan
Winstanley
BBC on the Net; Email filtering again; Back in Pole-land
December 2002
Purchase this issue
PROJECTS AND CIRCUITS
Versatile PIC Flasher by Steve Challinor
An attractive display to enhance your Christmas decorations
or your child’s ceiling.
Ingenuity Unlimited hosted by Alan Winstanley
Fluid Finder; Switched Mode L.E.D. Nightlight
Door Defender by Steve Dellow
Keep an armed guard on your door or valuables
PICAXE Projects - Part 2. Temperature Sensor,
Voltage Sensor and VU Indicator by Max Horsey
The second of a 3-part series using PICAXE devices - PIC
microcontrollers that do not need specialist knowledge, or
programming equipment
EPE Hybrid Computer - Part 2 by Petros Kronis
Real-time computation of complex system behaviour is greatly
simplified by combining analogue and digital processing
techniques
SERIES AND FEATURES
New Technology Update by Ian Poole
Newly developed, Spin transistors have potential
applications in areas from non-volatile memories to magnetic
sensors
Net Work - The Internet Page surfed by Alan
Winstanley
Tune in to WorldSpace; Email Filtering again
Alternative uses for Transistors by Ned Stephens
A look at the other uses to which transistors can be applied
Interface by Robert Penfold
Choosing and using Visual BASIC
Circuit Surgery by Alan Winstanley and Ian Bell
Measuring high side and low side currents in op.amps;
differences in common electric motors
Electronic Paper by Ian Graham
After more than 20 years of research, manufacturers seem to
have cracked the problem of making electronic paper
November 2002
Purchase this issue
PROJECTS AND CIRCUITS
Pic-Based Tuning Fork And Metronome by John Becker
Thrill everyone by at long last getting your instrument
properly tuned!
Transient Tracker by Thomas Scarborough
Solve a “spiky” problem with this easy-build mains transient
detector
Epe Hybrid Computer - Part 1 by Petros Kronis
Real-time computation of complex system behavior is greatly
simplified by combining analogue and digital processing
techniques
Picaxe Projects - Part 1 - by Max Horsey
PIC-based Egg Timer, Dice Machine, Quiz Game Monitor - The
first of a 3-part series using PICAXE devices - PIC
microcontrollers that do not need specialist knowledge, or
programming equipment
Ingenuity Unlimited hosted by Alan Winstanley
Wien Oscillator; 2-Channel Christmas Light Controller;
Budget Light Sensor; Talking Newspaper
SERIES AND FEATURES
Circuit Surgery by Alan Winstanley and Ian Bell
Biasing for single supply opamps; L.E.D. Lamp Temperatures
New Technology Update by Ian Poole
Optical illumination of crystals and nanotubes reveals their
data storage potential
Net Work - The Internet Page surfed by Alan
Winstanley
A Can of Worms; Attacking Tidal Waves; Fried Spam
Practically Speaking by Robert Penfold
A novice’s guide to obtaining a good stock of the right
components
October 2002
Purchase this issue
PROJECTS AND CIRCUITS
EPE Bounty Treasure Hunter by Thomas Scarborough
Inexpensive easy-build design that has good penetration and
discrimination capabilities, helping you find the valuables,
but not the iron and tin dross!
I.C. Tester by Joe Farr
Let a PIC and PC check the health of your digital logic
chips
Ingenuity Unlimited hosted by Alan Winstanley
One-second Crystal Clock; L.E.D. and Fuse Checker
Headset Communicator by Terry de Vaux-Balbirnie
Forget the megaphone! This system is ideal for directors who
don't wish to shout - comprises master console and three
slave units
PIC-Pocket Battleships by Bart Trepak
Become a Sea Lord with our interpretation of the age-old pen
and paper game!
SERIES AND FEATURES
Circuit Surgery by Alan Winstanley and Ian Bell
Toggle CMOS Interface; Troublesome UV Timer; Battery
Eliminator
New Technology Update by Ian Poole
Laser light as “tweezers” and new materials for
superconductors
Logic Gate Inverter Oscillators - Part 2 by George
Hylton
A compendium of practical oscillator circuits for creative
experimenters
Net Work - The Internet Page surfed by Alan
Winstanley
Too Many Favourites; ContentSaver; Low Interest Rates
Interface by Robert Penfold
Adding MSCOMM Active-X control to your PC
Using TK3 with Windows XP and 2000 by Mark Jones
By popular request, how to get EPE Toolkit TK3operating
under these operating systems
September 2002
Purchase this issue
PROJECTS AND CIRCUITS
Freebird Glider Control by Mike Boyden
An automatic flight attitude control system for your
free-flight model glider
Portable Telephone Tester by Alan Paton
A useful tool for testing those bargain boot sale phones
before you buy!
EPE Morse Code Reader by John Becker
Multi-function Morse code translation and learning aid;
standalone plus optional PC interface
Vinyl To Cd Preamplifier by Terry de
Vaux-Balbirnie
Copy your old records to CD, and perhaps enhance their
quality in the process!
Ingenuity Unlimited hosted by Alan Winstanley
Switch Mode Fan Regulator; 555 Astable
SERIES AND FEATURES
Circuit Surgery by Alan Winstanley and Ian Bell
Back to Darlington; Soldering tips, types and fumes
New Technology Update by Ian Poole
Quantum mechanics |