This circuit was found in a 1965 US documentation. The circuit converts a DC signal to a 400 Hz AC signal. Transformer data was not provided.
This circuit appeared in the June 1990 issue of Radio Electronics magazine. Integrated circuits must...
Lockout shooting, due to the incidence of light, can be achieved with the circuit in the figure. In...
This circuit can function either as a crystal or galena receiver with a pre-amplifier using a FET...