[time-nuts] HP E1938A question

[Richard (Rick) Karlquist]

I know that it will run on Windows 2000.  It was originally
written on Windows NT4.

Rick

On 4/24/2017 11:06 PM, GandalfG8 at aol.com wrote:
> Thanks Rick, I understand better now.
>
> The turn over label is still on the crystal but not the matching label
> on the PCB.
>
> So far I've not been able to get the software to run but will try
> with some older versions of Windows and see how it goes with those.
>
> Nigel GM8PZR
>
> In a message dated 24/04/2017 17:28:56 GMT Summer Time,
> richard at karlquist.com writes:
>
>     The main issue is that the oven will no longer be at the
>     crystal turnover temperature.  If you are using it in
>     a benign environment, you might not need the extreme
>     thermal performance enabled by being dead nuts on the
>     turnover.  You still have an oven with thermal gain
>     in the 100's of thousands.
>
>     The test software had the ability to sweep the oven temperature
>     and allow you to find the turn over.  There was some way to
>     then set the oven to this temperature.  I don't know if anyone
>     currently knows how to make the software do this anymore.
>     I knew at one time, but have long forgotten.
>
>     Rick N6RK
>
>     On 4/24/2017 5:41 AM, GandalfG8--- via time-nuts wrote:
>     > I've just received an Ebay purchased E1938A, haven't tested it yet
>     although
>     >  I do have a 14 day return option, but unlike previous purchases
>     of these
>     > the serial number label is missing from the rear of the PCB so I
>     have no
>     > obvious  way of knowing if the crystal is matched to the PCB.
>     >
>     > Does anybody know if there's any embedded information that can be
>     accessed
>     > that indicates the serial number of the board, or is there any
>     other way I
>     > can  check if the crystal and PCB are matched?
>     >
>     > If not, what issues could I expect from an unmatched crystal and  PCB?
>     >
>     > Nigel GM8PZR
>     >
>     >
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