This circuit from a Radio Electronics from December 1974 was used in color televisions of the time. It serves as a reference for restoration work. The circuit is of the ultrasonic type.
This moving bar circuit indicates digital values on a moving bar with zero in the center. The...
This circuit was found in the May 1989 issue of Radio Electronics magazine. The circuit requires a...
This sophisticated remote field strength meter circuit was found in a 73 magazine for radio...