[volt-nuts] (no subject)

[Joseph Gray]

I'm going to email K-H as J. L. Trantham suggested.

Joe Gray
W5JG



On Sun, Jul 28, 2013 at 3:56 PM, Tom Miller <tmiller11147 at verizon.net>wrote:

> Can you get a service/calibration manual for it?
>
> I just sent my HP3457A out for calibration. $150
>
> Tom
>
> ----- Original Message ----- From: "Joseph Gray" <jgray at zianet.com>
> To: <volt-nuts at febo.com>
> Sent: Sunday, July 28, 2013 5:05 PM
> Subject: [volt-nuts] (no subject)
>
>
>  I just had a friend buy this for me (I don't have an ebay account). I hope
>> I didn't make a mistake.
>>
>> http://www.ebay.com/itm/**Electronic-Development-**
>> Corporation-EDC-VS330-VOLTAGE-**STANDARD-/161069656213?nma=**true&si=**
>> PiGtcBMSdSOxgbm9DhiZ6iLo1GQ%**253D&orig_cvip=true&rt=nc&_**
>> trksid=p2047675.l2557<http://www.ebay.com/itm/Electronic-Development-Corporation-EDC-VS330-VOLTAGE-STANDARD-/161069656213?nma=true&si=PiGtcBMSdSOxgbm9DhiZ6iLo1GQ%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557>
>>
>> Of course, once I have it, it's the chicken and egg problem. The best I
>> have to check it against is an HP 3478A that was last calibrated an
>> unknown
>> number of years ago. It has a little round sticker over the CAL switch on
>> the front, but no dated calibration label that I can see. It came from a
>> repair facility that closed a few years ago.
>>
>> Actually, the reason I was tempted to buy the VS330 was because I think
>> the
>> 3478A is off a bit. A while back, I built a simple 5V reference with a
>> MAX6350. The 3478A read high. I took the reference to work and the best
>> Fluke handheld we have was dead on (I don't remember the model right now).
>>
>> I made the measurement again last night and the 3478A reads 5.0026 V, with
>> the last digit fluctuating. Room temperature was 26 C.
>>
>> I guess obsessing about these things has brought me here to the Volt Nuts.
>> I have been on Time Nuts for several years.
>>
>> Joe Gray
>> W5JG
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