Hello.
The low ohm ww resistors can be orderes from: http://www.rhopointcomponents.com/ - Resistors - Precision Through hole. Series 8E16 and 8G16 are 0.1 and 0.01%, TC3, low long term drift. Perhaps rhopoint also has a shop in italy. Delivery directly from UK was OK, but I had to pay additional taxes, afair.
2MOhm is difficult and very expensive to realize in wirewound technology, as wire has to be very long.
100µA give 20mW only, so they obviously have some internal problem, perhaps from humidity and/or age. Or the High Voltage (200V) has killed them, local short circuit and kind of "hotspot", due to deteriorated isolation.
The distributor has other low TC technologies, perhaps the long term drift is ok.
But your unit has obviously some other severe problems due to age or environmental abuse.
I'd check all other resistors before investing any Cent. Frank _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
