This circuit was found in an ancient American documentation. With it is possible to double the frequency of a transmitter For the range of 6 meters obtaining 8 W. The circuit makes use of varicap.
In this circuit the capacitor under test is charged at switch position A and then discharged...
Found in a Motorola manual from the 1980s, this circuit uses components from the era. The circuit...
This high-gain amplifier was found in the March 1994 issue of Electronics Now magazine. The...