This circuit from a 90s Popular Electronics, decodes the old analog TV signal. It works with a pilot frequency of 15 734 kHz from the scanning system.
This circuit was found in a Popular Electronics from the 90s. The circuit uses general purpose...
Found in Raytheon's 1960s transistor circuit manual, this circuit employs the CK722, one of the...
This encoded lock circuit with alarm for use in homes was found in a publication from the 90s. The...