This low power circuit for the FM band was found in a spy book from the 90s. The tunnel diode is not an easy component to obtain and the power can be supplied with a single button cell.
This circuit supplies voltages from 6 to 18 V with a maximum current of 2 A. We found it in a...
This circuit was suggested by Signetics in 1980s documentation. The circuit makes use of the...
This circuit was found in the SGS manual of linear integrated circuits of 1982. The integrated circuit...