[Test-Equipment] KEITHLEY 179

[J. Forster]

Analog Devices makes some very good references.

-John

==========

> Hi again Nigel,
>
> That's an interesting reference source.  I remember seeing what I'll
> call "precision zener diodes", which are very similar.  I don't
> remember where I saw them off hand, or what their claimed accuracy is.
>
> Thanks again for the help.
>
> -ed
>
> On Wed, May 27, 2009 at 4:33 AM,  <GandalfG8 at aol.com> wrote:
>>
>> In a message dated 27/05/2009 05:07:25 GMT Daylight Time,
>> k9ew57 at gmail.com
>> writes:
>>
>> Got it  !  Thanks Nigel.  Now to find a "DC  Calibrator".
>>
>>
>> ---------------
>> Glad you found it ok, and good luck with the calibrator.
>>
>> I bought a Fluke 760A a while ago at a seriously bargain price, but
>> Â that
>> reflected it also being a seriously heavy piece of kit with
>> Â calibratione
>> needs of its own that could keep me busy for ages:-)
>>
>> There's plenty of more modern kit available but often at a cost much
>> Â more
>> than the value of the meter you need to calibrate.
>>
>> Although not variable , so perhaps not a complete solution, I bought one
>> of
>> Â these as a 5 volt reference for confidence checks on my meters.....
>>
>> _http://www.voltagestandard.com/_ (http://www.voltagestandard.com/)
>>
>> It's good value and Doug, the seller, is a great guy to deal with, I'd
>> certainly recommend it and him.
>>
>> Usual disclaimer, no vested interest just a happy customer.
>>
>> regards
>>
>> Nigel
>> GM8PZR
>>
>>
>>
>>
>>
>>
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