We found this circuit in the June 1992 issue of Radio Electronics magazine. The sensor is a common diode. The circuit is powered by the power grid from a 12 V transformer.
Found in American documentation from 1968, this circuit uses both diodes and a neon lamp to...
This circuit can be used with transmitters in the 3 to 30 MHz frequency range also functioning as a...
This filtered High Side sensor circuit was found in a 2005 Linear Technology application manual....