Bill wrote:
Right now I need to find a good Cal Lab in the South SF Bay Area
where I can have one of them "certified" against their traceable
standards. The Fluke service center [in Milpitas] was closed years ago.
If you look at the uncertainties in the "scope of accreditation"
documents fo
Frank,
Have you got a link to the eevblog Datron 4910 reference element decryption? I
have a 4910 and am curious to see what they found, but am not finding any
reference to it in their "Episode" list.
Thanks
Steve
On Aug 20, 2013, at 12:01 PM, Frank Stellmach
wrote:
> Hello,
>
> until no
That's what happens when I type emails on my phone :-)
I'm still envious of your voltage standards.
Joe Gray
W5JG
On Aug 20, 2013 11:13 AM, "Bill Gold" wrote:
> Joe:
>
> Thanks for the upgrade, but they are only 732As not Bs. I got all of
> these at less than the going price of one 732B t
Hello,
until now, nobody has ever reenginered the 732B schematics. Perhaps the
bbs.38hot colleagues (lymex et. al.) have done that, but I do not get
access to the forum for downloading anything, either.
But on eevblog, the Datron 4910 reference element has been decrypted
completely, as now t
Joe:
Thanks for the upgrade, but they are only 732As not Bs. I got all of these
at less than the going price of one 732B that recently sold on the infamous
action site.
Bill
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Bill,
With six 732B's, you certainly qualify as a volt nut.
Joe Gray
W5JG
On Aug 20, 2013 10:37 AM, "Bill Gold" wrote:
> Joe:
>
> The 731A and 731B were run at room temp and therefore were subject to
> room variations. They both use the same "Reference Amplifier" as the 732A
> & B use. I
Joe:
The 731A and 731B were run at room temp and therefore were subject to room
variations. They both use the same "Reference Amplifier" as the 732A & B use.
I have one 731B and it is amazingly stable for the room temp variations I
experience at home. When I was working we had a 731B tha
Joseph Gray writes:
> There was a very interesting teardown of a 732B on the EEVBlog forum. I
> downloaded the service manual, but it seems that the details on the voltge
> reference section is missing. Does anyone have a full schematic of the
> voltage reference?
>
> Teardown is here:
>
> http:/
Yes, it was very cool to see the insides of the 732B. The older standards
apparently ran at room temperature. The oven assembly looks like quite a
bit of engineering went into it.
The link that was provided to a Chinese site does have some interesting
details about the entire Fluke reference serie
Joe:
That was a very interesting teardown of the 732B on eevblog. The one thing
that this answered for me was if Fluke was using their "Reference Amplifier" in
all of the 732B production and Fluke did.
If you look at a paper by David Deaver called "Predictability of Solid
State Refere
There was a very interesting teardown of a 732B on the EEVBlog forum. I
downloaded the service manual, but it seems that the details on the voltge
reference section is missing. Does anyone have a full schematic of the
voltage reference?
Teardown is here:
http://www.eevblog.com/forum/testgear/fluk
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