[volt-nuts] volt-nuts Digest, Vol 57, Issue 15
bob91343 at yahoo.com
Sat May 31 14:09:22 EDT 2014
Well I do have pride in owning this machine but it's redundant to my needs. I have far too much test equipment (and other stuff) and need to downsize.
On Saturday, May 31, 2014 10:01 AM, "joesmith at cvctx.com" <joesmith at cvctx.com> wrote:
WOW,, I would take a LOT of pride in owning such a difinative piece of
On Sat, 31 May 2014 12:00:01 -0400, volt-nuts-request at febo.com wrote:
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> Today's Topics:
> 1. Voltmeter calibration (Bob Albert)
> Message: 1
> Date: Fri, 30 May 2014 22:15:08 -0700 (PDT)
> From: Bob Albert <bob91343 at yahoo.com>
> To: "volt-nuts at febo.com" <volt-nuts at febo.com>
> Subject: [volt-nuts] Voltmeter calibration
> <1401513308.7302.YahooMailNeo at web122605.mail.ne1.yahoo.com>
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> I recently acquired an HP 3456A which has a tighter specification
> than the EI.? It's also a couple of decades newer and has been
> So I took a deep breath and opened the EI looking for a calibration
> adjustment.? I found one, and tweaked it to bring the EI back into
> specification.? It was off by about 0.06% and now it's within its
> spec of 0.01%.
> Pretty good gear, to hold its calibration so well for about a half
> century!? And now it has a new lease, with its recalibration.
> I also monitored the EI to see what its warmup time is.? It settled
> very closely within about 15 minutes from a cold start.? And I mean
> cold; I hadn't switched it on for quite a while.? (There is a 55C
> oven in it, holding the reference temp constant.)
> Of course I don't need this unit any more but it's quaint and works
> great.? It's not all that much bigger than the HP but lacks the
> resistance measurement and a few other bells and whistles.? And the
> big Nixie tube readout is cool.
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> End of volt-nuts Digest, Vol 57, Issue 15
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