This circuit is from a 1980s Motorola documentation. The circuit can be made with modern equivalent components. The original circuit is for the 115 Vac (110 V) grid and has two settings.
This circuit was obtained from a Radio Electronics from the 90's. It can generate signals up to a...
Found in a General Electric documentation from 1970, this circuit consists of a relaxation...
This circuit, from a former publication of 1968 was originally designed for germanium transistors, but with the...