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.
Found in a magazine 73 for radio amateurs, this circuit has two settings, one for the interval and the...
This good quality amplifier found in a 1982 documentation has a traditional complementary output...
A low frequency divider can be made using common unijunction transistors as shown by the figure...