Found in a 90s Electronic Design, this circuit provides a highly stable 60 Hz sine signal for applications such as inverters. The components used are common today.
This circuit using components that are still common in our market was found in a 1987...
The varactor or varicap diode tunes the signal for listening to SSB signals on a common receiver. The...
This circuit that also serves to control LEDs and other loads is from a 1960 publication. The...