This circuit was found in a Radio Electronics from February 1966. The circuit operates with a common battery and the frequency is given by the resonant LC circuit.
This circuit was found in an American documentation. Its purpose is to modify the tuning range of a...
This circuit was found in a Texas Instruments linear application manual from the 1990s. The...
This circuit is from a Maxim manual and can be used to power shields from batteries. The circuit...