[time-nuts] Re: Looking for HP 10811D manual (if such exists)

[Bob Camp]

Hi

All sorts of random folks design OCXO’s that get sold to HP / Agilent / Keysight. You
never know just how nutty they might be ….. :) :) 

Probably more significant than this or that crazy designer is the spec that HP asked 
them to build to. Some parts are pretty fancy and others are very much “nothing special
here”. 

Bob

> On Aug 31, 2023, at 3:40 PM, Bob Stewart via time-nuts <time-nuts at lists.febo.com> wrote:
> 
> Hi Bob,
> It's designed to look like a baby brother of the big HP DOCXO, so I just assumed the obvious.  I may open it up to see what's in it.  It seemed to work OK in the Z3805A, but I didn't do any exhaustive testing, or save any TimeLab plots.
> 
> Bob 
> 
>   ----- Forwarded Message ----- From: Bob Camp <kb8tq at n1k.org>To: Bob Stewart <bob at evoria.net>; Discussion of precise time and frequency measurement <time-nuts at lists.febo.com>Sent: Wednesday, August 30, 2023 at 06:32:04 PM CDTSubject: Re: [time-nuts] Looking for HP 10811D manual (if such exists)
> Hi
> 
> That likely is not an HP 10811 OCXO. It might be an OCXO somebody made for HP. 
> 
> It’s a good bet it is a  good OCXO that one can buy in the internal Chinese market for 
> not a whole lot of money.
> 
> Bob
> 
>> On Aug 30, 2023, at 11:07 AM, Bob Stewart via time-nuts <time-nuts at lists.febo.com> wrote:
>> 
>> Speaking of 10811 OCXOs, can anyone identify the OCXO in the picture, and the device it originally came from?  I'm assuming it's an HP OCXO from its similarity to the OCXO in my Z3805A.  The unit in the picture is an FO-18M, 10M OCXO FREQ STD, from BT7TBL that I bought from ebay sometime ago.  I've moved the EFC and 10Mhz connections to the back for external access.
>> 
>> Bob
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> 
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