On 29 April 2018 at 21:57, Nigel Clarke via volt-nuts <volt-nuts@febo.com> wrote:
> > Sorry, I realise now I could have explained better, I do know what > transistor it is but that's not the problem, this looks to be quite a > complex power suply/charger circuit, with at least three unmarked > adjustment pots so if I change the device, even for the same part number, > it's quite possible it will need readjustment and that's what I don't have > any information on. > > Nigel, GM8PZR > I see this is a low-resistance (10 u ohm resolution) ohmmeter. Have you any idea how you are going to check the calibration? I just bought a Simpson 444, which has 1 u ohm resolution. I have not got it yet, but are wondering how I am going to check the calibration. 0.005% resistors are available from Farnell in a fairly limited number of values, but certainty not in the range of values needed for a milli/micro ohm meter. Dave _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.