I can't believe I am asking this question. I thought by now this was all standarized, unless I am missing the obvious. I tried three different calculators and they all got confused.
Red,red,silver,gold black, what exactly is this?
Thanks
Russ

 

red red silver gold black
2 2 divide by 100 5% I don't know
likely .22 ohms 5%

red red grey gold black
2 2 8 divide by 100 0%
Not likely/ 2.28 ohms 0%

Can you measure the resistance?

 

It is measuring 39 ohms, and we know it has to be some form of 22, so 39 is too high. Perhaps it is 22 ohms? I think this is the current sense resistor in this power suply I am working on.
Thanks
Russ

 

39 ohm reading suggests it is ruined.
It is also important to get it right. If this is the sense resistor on a switching supply and you get it wrong, the smoke could start in microseconds.

Time for research!

 

Are you measuring that "in-circuit"?

 

I removed and it still measures 39 ohms. I contacted the manufacture but they haven't responded with the schematics. It is a Weihai HTD180240-T1

 

The black stripe indicates a temperature coefficient of 250ppm/°K.