Using the name of varactor this circuit was found in the Radio Electronics magazine of July 1982. Varicaps of any type can be used and the components selected according to the component.
This 2-terminal regulator was obtained from a 1990s National Semiconductor manual. The components admit...
This circuit is from the 1993 Motorola Linear Interface ICs. Equivalent operating may be used and...
We found this circuit in a 1980s Motorola documentation. The circuit makes use of common operating...