Hi Chris, You might consider taking a look at the EEVBlog USA Cal Club thread. We are mailing a Geller Labs reference around the country.
The reference doesn't have a lot of history built up yet, and we haven't tried shipping it back and forth between the same two parties multiple times to characterize shipping-induced instability, but it has been in the hands of a couple of 3458A owners, so its uncertainty is a bit of a mixed bag at the moment. Either way, its fun to participate :) http://www.eevblog.com/forum/metrology/usa-calibration-club/ -Jason Pepas On Fri, Aug 11, 2017 at 4:55 PM, Chris Farley via volt-nuts < volt-nuts@febo.com> wrote: > Greetings all, > > As suggested several months ago, I'm put out an inquiry/request to see if > there's anybody in the area who has an HP3458A or better anywhere near me > down here in Sandwich, that I might be able to either A) compare readings > to my 3456A, or possibly use (without removing from your premises, > obviously) use to calibrate my Fluke 332B. I have means to keep my units > powered during transport, so hopefully would not require hours of sitting > to stabilize before taking any readings. The 3456A's limitations are > really being stretched, in trying to calibrate a 332B with it alone. > > Alternatively, is anybody aware of a Geller Labs (closed) voltage > reference available on the used market, or something of equal or better > precision available today? The Malone Electronics VREF10-003 looks very > interesting, with supposed 6mos accurace of ±300uV. > > Regards, > Chris > _______________________________________________ > 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.
