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 1964 Electronic Design, this circuit generates pulses based on an avalanche diode of...
This circuit is from 1990 documentation. It can be implemented with BC548 transistors instead of...
The traditional circuit was taken from a French magazine Radio Plans that no longer exists but can...