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.
The circuit shown in the figure can be designed with more modern operational amplifiers, as it is...
This transmitter has a power of only 2 W, but with a good antenna it can send its signals over...
August 2017 - The new DPS1133 power switches from Diodes Incorporated for currents up to 3.3 A...