FET control shield (CB8513E)

Found in a Popular Electronics from the 90's, this circuit can be implemented with almost any optical isolator and any power MOSFET.

Bistable 741 (CB9422E)
This configuration, obtained from a 1973 publication, triggers with pulses applied to the input...
Emitter Coupled RC Oscillator (CB6350E)
This circuit was found in an 80's Radio Electronics. The circuit makes use of general purpose...
Relaxation oscillator with SCS (CB9077E)
Found in a 1968 American documentation, this circuit generates 1 kHz signals. The SCR used is not a...