The circuit shown is from old English documentation and can be made with BC548 transistors for low power ones. The 2N3055 must be mounted on a heat radiator.
We found this circuit in a 1963 Radio Electronics. It can be used for remote control. The...
We present a circuit for those who want to give the impression that there are people at home when...
This small transmitter can act as a wireless microphone operating in the medium wave range,...