This circuit was obtained from an American 80's documentation. The balanced mixer can be shown in CB4234. The circuit is for controlling RF signals in a modulation system.
This circuit consists of a “zero crossing detector” that provides a rectangular output signal...
The purpose of this circuit found in a 1967 GE SCR manual is to control a heating element. The SCR...
This switched-mode circuit was found in the April 1976 issue of Radio Electronics magazine. The...