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 circuit is suggested by the National Semiconductor (Now Texas Instruments) and is based on a...
This optical coupler for short distances is powered by 12 V which is the voltage of the lamp and...
June 2017 - In its huge line of available components, Mouser Electronics highlights the new...