FYI, the e-bay seller was Alexandra Carter.  I thought maybe it was just mine, 
but another 
buyer recently received his and same problem.  It heats up just fine (I don't 
have a way to 
actually measure the temperature inside, the outer case feels like it gets 
about as warm as 
a working unit.   

In going back to read her description of the sale nowhere does it say that she 
checked out 
the frequency.... There are photos of a scope showing a sine wave, power 
applied, etc.  The 
lack of any mention of an actual measured frequency should have tipped me off..



------- Original Message -------
>From    : Mark Amos[mailto:[EMAIL PROTECTED]
Sent    : 1/14/2007 2:40:46 PM
To      : time-nuts@febo.com
Cc      : 
Subject : RE: Bad batch of HP10811's

 Time-nuts,
 
Seems like a bad batch of HP10811's was dumped on e-bay over the holidays...  
Some (at least 
2) won't tune up to 10MHz: one won't adjust above 9,999,530 and the other peaks 
around 
9,999,920 after warming up for a day or so.  It seems to stay on frequency 
(albeit the wrong 
one...)

I did some preliminary checks (internal reference voltages, OK, etc.)  I'm 
thinking that it 
must be a bad crystal to be this far off. 

C'est une cause perdue? (I.e. did I buy a "parts" unit?)

Mark
 




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