Lamp control (CB21962E)

This 60's shield or driver employs germanium transistors. The circuit is from a 1960 Gernsback documentation.

Voltage Monitor MC34064 (CB14536E)
The component used in this circuit is uncommon today. The circuit is from Motorola's 1990 Linear...
Series Crystal Butler Oscillator (CB25557E)
This circuit was described in an article in the February 1993 Radio Electronics magazine. The...
Motor Reversal with Relay (CB19376E)
This version of the SCR relay switch circuit was found in an old documentation. In this case, the...