[time-nuts] Bad batch of HP10811's

[Mark Amos]

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