The frequency of this circuit can be varied from zero. The circuit uses the CMOS 4046 and was found in the November 1984 issue of Radio Electronics magazine. The base frequency is given by C1.
In a reflex receiver, the detected audio signal is applied back to the circuit input to receive new...
This circuit was found in the February 1991 Radio Electronics magazine. The circuit must be...
This circuit was obtained in an Electronic Design from the 80's. It has the adjustment of the gain...