[time-nuts] Odd FTS 4060 Behavior
EWKehren at aol.com
EWKehren at aol.com
Sat Jun 12 21:05:46 UTC 2010
If it is always stable at 5xxxxx500.32 and has the lock light on than it
has to be in the PLL.
Bert Kehren
In a message dated 6/12/2010 4:36:39 P.M. Eastern Daylight Time,
rfnuts at arcor.de writes:
John,
it's been a while since I digged deeper into it, but I remember having
had problems to adjust the OCXO to tuning voltage range center when the
failure mode was there. I was already suspecting an OCXO problem, but
haven't yet watched it for a long period of time. Now as you're
suspecting the same, I'm planning to run the OCXO separated from the
4060 on an external power supply.
Btw. all of the control voltages are very close to what is hand marked
inside of the front lid (when it runs correctly). The unit is stamped
Sept, 22, 1989 and has a Rev B 4-27-90 marked EPROM.
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