Stanford research SR625 rubidium timbase for SR620

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Subject: Stanford research SR625 rubidium timbase for SR620
Stanford Research Systems SR625
Here is a link to the datasheet brochure!
And here a link to the manual!
<5 × 10-11/month, <5 × 10-10/year
10 minutes to meet short-term stability specification
70 W (at warmup), 100/120/208/240 VAC, 50/60 Hz
This is a perfect toll for high precision frequency measurements! A necessity for any calibration lab! Locks in a few minutes!
Very expensive unit, original over $8000. Don't miss this chance!
* Money Order/Cashier Checks
* Personal Checks will have to wait to clear first