Found in an Electronic Design from the 90s, this circuit uses components from the time. It is intended for coupling with 50-ohm cables.
This simple trigger circuit was found in a 90’s American documentation. The integrated circuit is...
This sensitive circuit was found in the August 1971 issue of Radio Electronics magazine. The SCR...
The varactor or varicap diode tunes the signal for listening to SSB signals on a common receiver. The...