This circuit is for analog TV video signals and was found in the March 1988 issue of Radio Electronics magazine. The circuit uses a Maxim integrated circuit that can still be found.
This is a circuit published in the January 1962 Radio Electronics magazine. The circuit is for...
This diagram was found in the November 1972 issue of Radio Electronics magazine in an article...
This circuit with the CK722 was found in a Raytheon publication from the 60's. The relay is of the...