[time-nuts] Symmetricom (Datum/Microsemi) CS tubes after storage
time-nuts at studio442.com.au
Wed Jun 20 19:32:21 EDT 2018
I recently picked up a used Cs clock (Symmetricom labelled Cs4000).
Sadly, it turns out to have been stored for about a year (at least, a
year since it was last claimed to lock) and doesn't appear to be locking.
I've had it on for about a month now, and ion pump current is still
Given the unit is now over 10 years since manufacture, with power on
hours of ~5 years I'm guessing this now probably has a dead tube, and
unless I want to spring for a new tube I have a paperweight.
1: Monitor3 display for the unit including the alarm window:
(That's the set that fires after alarms are cleared)
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