Simple 1-tube receiver (T960E)

This 1V heater tube circuit was found on a Radio Craft from 1945. The circuit is for medium wave and can be used as a tuner.

Inverter Amplifier LM675 (CB19037E)
The National Semiconductor LM675 operational amplifier can provide up to 3 A of output current. In the...
Socket control (CB24880E)
The idea of this circuit is that when the device in SO1 is turned on, the device connected to...
Transistor Radio GE675 and 676 (CB18441E)
This transistorized receiver was manufactured in the 1960s and distributed worldwide. The diagram is...