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

[Illya Tsemenko]

Hi Chris,

I plan to be near Chicago for few weeks around Xmas. I could take one of 
my LTZ references with me, if you want to meet up and do some tests. I 
don't have plans bringing any DMMs yet though.

As of references, you could build your own LM399 based or LTZ-based 
references, and have somebody measure it for you. I did so for few 
EEVBlog metrology section members earlier this year, with my PCB "KX" 
modules which is LTZ1000-based design. I don't sell any finished units 
though.

BR,
Illya

12/08/17 5:55, Chris Farley via volt-nuts пишет:
> 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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