One-transistor oscillator (CB22064E)

Capacitors C2, C3 and C4 determine the frequency of this simple oscillator. Transistor can be general purpose equivalent.

Power supply for the 60 W amplifier (CB24249E)
This is the power supply for the amplifier in the previous circuit. We found it in the same Radio...
10-Channel Up Down Sequential (CB16982E)
We found this circuit in a 1990 documentation. It is totally up to date by the components it uses...
Broadband voltage follower (CB9344E)
This circuit was found in a 1970s General Electric documentation. Transistors are uncommon today....