This circuit was found in a Hands On Electronics from the 90s. It is intended to supply old tape players to batteries with a voltage of 7.5 V from the 12 V of a car battery or source.
This circuit was found in an Experimenters Handbook of the 1990s. The purpose of this circuit is to...
Signals from old cordless phones can be picked up with this circuit. L1 has 10 to 20 turns of 32...
This emitter-coupled transistor LC oscillator circuit was found in the May 1970 issue of Radio...