Combination Lock   Issue 5
A simple project to toggle a relay.

Continuity Tester  Issue 14
Tests for Continuity

Co-Ordinator   Issue 14
A game of skill

Counter Module   Issue 10
A 4 digit counter using a single chip.

Cube Puzzle  Issue 8
An electronic version of Rubik’s cube.

Digi Chaser   Issue 8
Program 8 LEDs to create a pattern

Diode Tester   Issue 6
Tests diodes and indicates which lead is the cathode.

Dual Power Supply   Issue 11
+/- 5v 12v or 15v

Egg Timer   Issue 6
A 3 minute timer for eggs.

8 Watt Amplifier  Issue 9
An 8 watt amp using an LM 383 or TDA 2002.

Experimenter Board 1 - 8 Issue 1!
A series of 8 projects built on a re-usable P.C. Board.

Experimenter Deck 1-10  Issues 1, 2, 3, and 4.
Parts are added to a PCB to produce 10 different projects.

FM Bug   Issue 11
An easy-to-make FM transmitter

FM Radio    Issue 15
Build your own FM Radio using an IC

Guitar Practice Amplifier  Issue 14
An 8 watt guitar amplifier with fuzz control.

Hangman    Issue 6
An electronic version of Hang the Butcher.

Headlight Reminder   Issue 12
Reminds you to turn the headlights off
after you turn off the ignition.

IC Pocket Radio  - AM   Issue 8
An AM Radio using ZN414 IC

Kitt Scanner   Issue 13
Seven LEDs are scanned by a
reversing circuit to give the effect as in the KITT car.

LED Dice with Slow-Down   Issue 5
A Realistic Dice using 7 LEDs

LED Zeppelin    Issue 1
Turn on a row of 7 LED by pressing a button

Logic Probe   Issue 10
Invaluable piece of test equipment for
testing digital circuits.
Has HIGH, PULSE, and LOW LEDs
to show the state of digital outputs.
Also the added feature of a mini piezo for
HIGH TONE, LOW TONE,
and PULSING TONE

Logic Pulser  Issue 13
Produces pulses for injecting into logic circuits.
Normally used in conjunction with the Logic Probe kit K-LP1.

Lotto Selector   Issue 9
Displays random numbers between 0 and 99.
Can be modified not to go above 45.

Mini Mixer  Issue 6
Mixes up to 6 audio inputs to 1 output.

Music Colour   Issue 7
A set of 14 coloured LED’s flash in sync with music.

Organ   Issue 15
A simple stylus organ

Phaser Gun    Issue 7
Phaser gun sound effects.

Pill Timer   Issue 7
A long duration timer suitable for taking pills etc.

Power Supply, 1 Amp   Issue 3
A regulated power supply that can supply 5v - 15v at 1 amp.

Quick Draw Issue 5
A simple game to test who presses first.

RouLED    Issue 10
A set of 10 LEDs in a circle to give a spinning wheel effect.

Simplicity Amplifier   Issue 5
4 watt amplifier using an LM 380.

Stereo Amplifier  Issue 7
Uses 1 stereo pre-amp and 2 simplicity amps.

Stereo Mini Mixer (4 channel)   Issue 9
Mixes 2 or 3 Stereo inputs to 1 stereo output.

Stereo Pre-Amp   Issue 7
A simple stereo pre-amp with volume, base, and treble.

Seven Segment Display  Issue 2
A large 4 digit display using LEDs to create 2.5cm numbers.

Square Wave Oscillator   Issue 3
Produces frequencies from 1Hz to 100kHz

Stereo VU Meter  Issue 7
An LED bar graph to indicate audio power output.

Throttle MkII  Issue 6
A simple throttle for model train control with a
power transistor mounted off board for small enclosures.

Touch Puzzle    Issue 12
A game of skill

Tremolo   Issue 7
Tremolo effects for guitars.

Ultima      Issue 15
An FM Bug with a very good range