This circuit uses a contactor having been found in a 1987 publication. More modern equivalent devices may be used. The circuit has neon indicator lamps.
The circuit shown is from 1997 Linear Technology Applications. The components used were common at the...
This circuit with the INA185 current sensor from Texas Instruments was obtained from its own...
This circuit was found in a National Semiconductor Handbook from the 1990s. The integrated circuit...