This circuit was found in the May 1959 Radio Electronics magazine. Its purpose is to provide bias voltages for circuits under test. The circuit is isolated from the power grid.
The 8038 integrated circuit consists of a function generator. This component, indicated in a 1974...
The integrated circuit is the 4093 and one of its four gates is used. The frequency is given by...
Found in an American leaflet from the 90s, this circuit uses an AM radio out of station to monitor...