Audio amplifier 741 (CB20478E)

This low power audio amplifier was found at 1992s Popular Electronics. Transistors are general purpose common types.

Trigger circuit for photo multiplier tube (CB8661E)
This circuit was found in a 90s Electronic Engineering. The circuit has the tube's critical...
Notch Filter 741 (CB10868E)
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...
Auxiliary flash triggering unit (CB8108E)
Found in a Popular Electronics from the 90s, this circuit applies to flashes with xenon lamps. The...