This 80's circuit uses a germanium transistor like the AC121. The circuit has an output transformer of the type found on many transistor radios of the time.
The previous oscillators that use gatesshown in this section, and the 4093 in the basic version,...
This voltage controlled oscillator uses a varicap to change the frequency. Usin a 100 turns coil...
The circuit shown in the figure is indicated for alternative sources of energy, such as those...