This 50% active cycle TTL clock generates signals from 4 to 20 Hz. Its power must be supplied with 5 V and other frequencies can be generated with capacitor replacement.
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...
The circuit shown in the figure below is suggested by ON Semiconductor (www.onsemi.com), based on...
This old circuit is from the era of analog televisions, serving for technicians to make...