This circuit appeared in the May 1983 issue of Radio Electronics magazine. It is based on the dedicated integrated circuit CEM3340. The circuit provides signals with various waveforms.
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...