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Transistor Projects for the Constructor from the 1960's and 70's. Page 2

All articles are © Practical Wireless Magazine and are reproduced by kind permission of the editor.

This series started in the 1960's Practical Wireless magazine and continued for many years.
That idea was that the circuit used no more than 20 components or cost more than 20/- (an old pound (Ł)). These are various transistor projects which featured in the series.
With thanks to Steve Payne who sent me these circuits.

Magic Candle
Metronome
Morse Code Oscillator
Motor Speed Controller
Neon Flasher
Noise Limiter
Pulse Generator
Signal Injector
Slave Flash Trigger
Snap
Swanee Whistle
Touch Sensative Switch
Touch Switch
Traficator Repeater
Transistor Audio Amplifier
Triplex Signaling
Variable Ratio Counter
Varicap BFO
WAA WAA