Found in Datel's documentation from the 1980s, this circuit makes use of the company's operational amplifiers. The circuit can be implemented with any modern equivalent operational.
July 2017 - The new Schottky rectifiers from the FMX series for currentes from 1 to 3 A from...
This TTL dice was found in an old American 1980s documentation, but can still be easily assembled....
This circuit uses an operational amplifier to simulate an inductor. The circuit is from old...