Frans: Mine which was built in 1979, and corrected for the 1990 change in the ohm, and calibrated last in 2009 has drifted upwards by 1.61 ppm total. So about 0.054 ppm/year. I don't have any data from those 30 years so this is the beginning and end points. These all seem to have a spectacular performance to say the least!
Regards Bill ----- Original Message ----- From: "Electronics and Books via volt-nuts" <volt-nuts@febo.com> To: "Discussion of precise voltage measurement" <volt-nuts@febo.com> Sent: Wednesday, November 29, 2017 6:25 AM Subject: Re: [volt-nuts] Get 10K resistor calibrated in UK > can anyone tell me howmuch a SR104 10k resistor drift > > Met vriendelijke groeten > Regards > Frans > > electronicsandbo...@yahoo.com > http://ElectronicsAndBooks.com > Netherlands > > Discere ne cesses > > -------------------------------------------- > On Wed, 11/8/17, David C. Partridge <david.partri...@perdrix.co.uk> wrote: > > Subject: Re: [volt-nuts] Get 10K resistor calibrated in UK > To: "'Discussion of precise voltage measurement'" <volt-nuts@febo.com> > Date: Wednesday, November 8, 2017, 4:08 PM > > I guess that depends on your > definition of cheap :( > > Dave > > -----Original Message----- > From: volt-nuts [mailto:volt-nuts-boun...@febo.com] > On Behalf Of Alan Ambrose > Sent: 08 November > 2017 14:31 > To: volt-nuts@febo.com > Subject: Re: [volt-nuts] Get 10K resistor > calibrated in UK > > NPL i.e. > the UK national lab, are also surprising flexible and cheap. > Looking at their schedule for '15/'16 (the one I > happen to have to hand) they had 10K ohm cal 30-Nov-15 to > 11-Jan-16 @ £510. They also had voltage cal October and > March at ~£420. > > A. > _______________________________________________ > 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. > > _______________________________________________ > 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. > > _______________________________________________ > 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. _______________________________________________ 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.
