This circuit was obtained from Motorola documentation from 1969. The setting applies to other operating systems, including lower supply voltages. The zener determines the output signal.
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...