This circuit was found in a Dutch documentation from 1970. The circuit makes use of semiconductors that have current equivalents and is indicated by a 0-5 mA milliammeter.
With the circuit shown it is possible to measure very low resistances, of the order of fraction of ohm,...
The operational amplifier used in this circuit is no longer common on the market, as the circuit is...
The circuit shown in the figure makes use of an LM3909, a low consumption and low voltage IC. The...