This 600 kHz circuit is designed to locate a lost boat anchor. The circuit has a range of up to 10 meters. The transistor admits equivalent.
Suggested by an American documentation for 1969 neon lamps, this circuit provides SCR control with...
This symmetrical source was obtained from Popular Electronics from February 1979. Transistor Q1...
The transistor may be any general purpose, but the integrated transistor is not common today....