The purpose of this circuit found in a 1967 GE SCR manual is to control a heating element. The SCR must have current according to the controlled load.
This circuit has a start and reset switches and can generate signals at long intervals determined by the...
We found this circuit in English documentation for PCs from 1996. The ZN448 is a very uncommon...
This circuit produces a sequence of steps controlled by P1 and applied to a 12V stepper motor with...