This circuit was found in specialized microwave documentation from the 1960s. The circuit makes use of a varicap, and the transistor is a microwave type.
This circuit uses an optocoupler to obtain a solid state relay whose power depends on the Triac...
Small time intervals up o some minutes can be achieved with this circuit. Only incandescent lamps...
We have a simple and useful circuit found in a 1982 documentation which generates a signal in the...