Dave, I don't know where you are based, but I happen to have two 5440B's I want to get rid of.
Anyone else in Europe who is interested can also react, of course :) Met vriendelijke groet, Rob Klein verstuurd vanaf mijn smartphone Op 9 jul. 2017 17:33, om 17:33, "David C. Partridge" <david.partri...@perdrix.co.uk> schreef: >Thanks Charles, > >Dave > >-----Original Message----- >From: volt-nuts [mailto:volt-nuts-boun...@febo.com] On Behalf Of >Charles Steinmetz >Sent: 09 July 2017 13:31 >To: Discussion of precise voltage measurement >Subject: Re: [volt-nuts] Fluke 332B > >David wrote: > >> When running through the calibration of the unit last night, I found >> that it was really quite noisy > > >> So, is it worthwhile to replace the chopper amplifier board and >> replace electrolytic caps or would that just make marginal >> improvements >> >> If it would still be an unstable, noisy brute after I finished that, >then I think I'll put it on eBay ... > >My experience with these extends back to when they were new. They are >definitely noisy even when they are in perfect condition, and this many >years on they tend to be quite unreliable even if they have been >thoroughly gone through. Also, something I haven't seen mentioned much >is that the last decade (LSD) is purely for decoration. The accuracy >of the 332 on its best day is worse than one division of the >second-last decade. > >In my expeience, the original choppers work very well unless they are >broken. I do not expect that a chopper-stabilized op amp would provide >meaningful improvement. > >I advise passing on the 332A/B/D and holding out for a 5440B. You will >not be sorry. > >Best regards, > >Charles > > >_______________________________________________ >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.
