[volt-nuts] 3458A in the SW Chicagoland area/Geller Labs references?

[Andy Lawrence]

If for some reason the US Cal Club doesn't fit for you:

My parents live north of Chicago in Lindenhurst, and I *might* be visiting
there for X-Mas this year.  Or if you get really motivated I live in Terre
Haute IN, which is probably only 3 hours south of you.  Only one point of
history but I have two recent cal'ed 3458As and a 731B.

BR
Andy

On Fri, Aug 11, 2017 at 6:51 PM, Jason Pepas <jasonpepas at gmail.com> wrote:

> 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 at 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
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