[time-nuts] HP 5370B
marks at twotoe.com
Sun May 11 04:39:09 EDT 2008
This is my first 5370B so I knew nothing about its expected behaviour.
I bought it on eBay as the song goes and when it arrived I could see damage
to the top right corner of the front frame that the operator panel screws
It looked like it had been dropped and dropped quite hard.
Although I could not detect any drift on the oscillator, I thought I'd try
some of the 10811's I have collected.
While I was about it I replaced the front frame.
Interestingly enough, when the oscillator was replaced, the frequency
stopped jittering around and sits quite happily at 11 digits resolution.
Now, although it seems deceptively simple, I can't decide whether to tune
the multiplier or not.
I'd hate to be fixing something that wasn't broken in the first place.
Here is an interesting page on leapsecond depicting a drifting HP 10811.
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