Suggested by Fairchild in a 1980s publication, this multiplier uses operational amplifiers from that time. The power supply must be symmetrical.
This 2004 circuit is based on the ionization effect that occurs in old incandescent lamps with...
This bidirectional current sensing circuit was found in a 2005 Linear Technology application manual....
This circuit can be used in decoration or to draw attention, in a “fake” assembly for example. What he...