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 circuit is from a documentation from the 70s. The circuit uses logic gates of the time, which...
Found in the July 1968 Supertena Bulletin of a Popular Electronics, this receiver makes use of the...
The circuit shown was found in the February 1994 issue of Electronics Now magazine. The circuit...