Found in old American documentation, this circuit demodulates signals from 1 kHz to 10 kHz for telemetry applications using the FM band.
This circuit was obtained from an English magazine from 1976. The transformer has a current of 1.5...
This sensitive circuit with common transistors was found in the Radio Electronics magazine of July...
Using the 4046 PLL we found this circuit in the December 1989 Radio Electronics. The circuit...