This circuit was found in the July 1969 Radio Electronics magazine. The circuit controls resistive loads and universal motors with power according to the SCR used.
This circuit is from General Electric documentation from 1970. The transistors can be of...
This sophisticated decade of benchtop resistors was found in the November 1989 issue of Radio...
Found in a 1967 RCA manual, this circuit uses components from the era that can be replaced by modern...