This 1970 Electronic Design circuit uses a varactor or varicap. The circuit divides the frequency of a 150 MHz signal by 2. Similar versions appear on this site.
The circuit shown in the figure consists of a phase shift oscillator and its components have been...
Powered by voltages from 6 to 12 V, this circuit from a Popular Electronics from the 90s,...
This circuit is nothing more than a voltage quadruplicator that can generate close to 1 000 V from...