[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:


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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