Found in a 1967 documentation this circuit can be applied to any operational amplifier. Components without values determine the frequency to which the circuit is tuned.
This battery charger circuit was found in ancient American documentation. The components are...
This network can be used in a sound project to control the tone. The circuit is from an...
Toshiba MOSV MOSFETs These and others from the same line of Toshiba power MOSFETs are available from...