On Thursday, June 14, 2018 at 11:09:29 PM UTC-4, Clare Snyder wrote:
A friend is trying to identify a device on a circuit board. It is
identified as a resistor (R34) and looks like a resistor, but only has
one band. If that band was black I;d say it was a "zero ohm_ reistor
- aka a "jumper" but this is a single blue band at the one end. Looks
like about a 1/2 watt.

There are actually 2 of them on the board.
It is the probe board from an Amprobe ACD14 Plus which has gone out of
calibration. No schematics are available -and apparently no parts
either.

Any signs from the traces on the board that it's in series with the current leads? It may be some proprietary high precision, low ohm resistance to generate a voltage to measure the current?