This circuit simulates the signal produced by a muscle, serving to adjust medical equipment. The circuit is from the 1968 Mullard. Transistors support modern equivalents.
This circuit drives two-color LEDs at a speed that is set in the 100k pot. The circuit can be...
The circuit shown was found in a 1967 RCA manual. Modern equivalent components can be used. The...
Indicated for automotive applications, this circuit was found in the November 1980 issue of Radio...