This circuit was found in documentation from the 90s. The operational amplifier is NE5514, which is uncommon today. The configuration can be adapted to use modern components.
We can use any type of resistive transducer with central resistance in the range of 10 k ohms to 1...
This voltmeter indicates voltages from 0.7 to 2.8 V at 4 levels determined by the diodes. The...
I found this circuit in an old British magazine from 1976. It is possible to test operational...