This PLL circuit was found in the April 1978 issue of Radio Electronics magazine. The circuit is powered with up to 15 V voltages from a symmetrical source.
We found this elementary receiver in a 1983 publication, but it can be easily assembled today, as any...
This oscillator was found in a 1976 documentation. The no specified components indicate circuit...
The figure shows how to use a varicap in a conventional tuning circuit. The circuit may be an...