Phototimer (CB22297E)

We found this timer circuit in documentation from the 60's. The transistor is a germanium type, and the relay is the sensitive type of the time.

Sine wave generator (CB25129E)
This circuit generates sinusoidal signals that depend on the input oscillator. The circuit is from...
1 Transistor Amplifier Stage (CB19569E)
This is a typical amplifier stage with 1 old general purpose silicon transistor. The circuit is...
High Voltage Supply (CB20204E)
This high voltage source is suitable for valve circuits and other applications. The circuit uses a...