This circuit is from an old documentation, making use of an operational of the time. The circuit can be adapted to use modern components. The power supply must be symmetrical.
One of the problems with common multimeters, especially analog ones, is that their low resistance scales...
This circuit was found in old documentation, but the setting applies to any operational. Resistors...
Vz determines the trigger point for this protection circuit. The SCR doesn’t need to be mounted on a...