Found in a 1967 Electronic Design, this circuit operates in a range of 0 to 1 V input with frequencies determined by C2. The components are from the period.
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...