2 transistor radio (CB20517E)

This circuit with germanium transistors was found in documentation from the 50's. The transistors are germanium of the time.

7 MHz Power Stage (CB398)
This circuit hás a Power output of more than 1 W. It is used in small experimental or low power...
Timer (CB18627E)
This simple timer or timer activates a low current bell or a buzzer according to the supply...
2 transistor radio (CB20517E)
This circuit with germanium transistors was found in documentation from the 50's. The transistors are...