[volt-nuts] Anyone got a photo of a 3458A with "new volt" printed on it?

Brooke Clarke brooke at pacific.net
Tue May 30 14:49:00 EDT 2017

Hi Dave:

I remember this.  We already had an HP 3458 that was calibrated to the Old Volt and I ordered a new one that came with a 
"new volt" sticker.  Tom, in the cal lab, connected them both to a voltage standard (maybe the Fluke 332) and the 
difference in their readings was very close to the deference in the definitions.  Note the voltage source does not need 
to be accurate for this comparison, just stable.


PS Let me know if you find a photo of the sticker.

Have Fun,

Brooke Clarke

-------- Original Message --------
> IIRC, there are reports of 3458A's being sent to Agilent, and having a
> sticker to say the "new" standard volt was used - I assume the last time
> the volt was redefined.
> I was chatting to someone from my radio club in the pub last night, and
> somehow we got onto the definition of a volt. I'd like to try to research
> this, and perhaps give a talk at our radio club on it. I'd like to get a
> picture of a 3458A with such a sticker if I could.
> Dave
> Dr. David Kirkby Ph.D CEng MIET
> Kirkby Microwave Ltd
> Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, Essex, CM3 6DT,
> UK.
> Registered in England and Wales, company number 08914892.
> http://www.kirkbymicrowave.co.uk/
> Tel: 07910 441670 / +44 7910 441670 (0900 to 2100 GMT only please)
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