Tracecom and I got together on this. I designed it, he built it, he says it works.
The Max6035 chip in 1/2% accuracy is used as a stable 10.00 ma current source. The rest is calibration and a Kelvin connection.
The 200 mv scale on a DVM will show 199.9 while indicating 19.99 ohms. Good for those 2 watt emitter resistors of .15 ohms or .27 ohms.
The Max6035 chip in 1/2% accuracy is used as a stable 10.00 ma current source. The rest is calibration and a Kelvin connection.
The 200 mv scale on a DVM will show 199.9 while indicating 19.99 ohms. Good for those 2 watt emitter resistors of .15 ohms or .27 ohms.