This filter was found in Delco's 1965 documentation. It can be implemented with modern components according to the voltage and current to be regulated.
This circuit, which can be used as a shield, was found in a 1980s documentation. The circuit can be...
Found in an English documentation from the 90's, this oscillator has the frequency given by the LC...
This circuit was found in a 1970 IEEE publication. The circuit functions as a voltage controlled...