This circuit was obtained in the 1990 Motorola Linear Databook. The circuit uses a 139 series comparator, but other series can be used. The power source need not be symmetric.
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...