[time-nuts] Chances of 5061 and 5062 still having life in them?

[EWKehren at aol.com]

Hi
I noticed a HP 5061A in Australia with a patek-philippe clock movement on  
ebay. The clock will be worth some thing, even if the tube is bad! May  
compensate for the risk you take.
Bert Kehren
 
 
In a message dated 7/13/2010 12:19:58 P.M. Eastern Daylight Time,  
lists at rtty.us writes:

Hi

It's quite possible that they have been re-tubed three or  four times
already. That makes the estimation process pretty tough.  

Pay for them as if they were dead, feel good if you get a working one.  
Don't
feel bad if you get out-bid...

There are indeed things that a  Cs can do that a GPS locked Rb can not.
Running a Cs 24 hours a day 365  days a year for years and years can be
pretty expensive. A lot depends on  what you want (or need) to do with it. 

Bob

-----Original  Message-----
From: time-nuts-bounces at febo.com  [mailto:time-nuts-bounces at febo.com] On
Behalf Of swingbyte
Sent:  Tuesday, July 13, 2010 10:46 AM
To: Discussion of precise time and  frequency measurement
Subject: [time-nuts] Chances of 5061 and 5062 still  having life in them?

Hi Guys,
In Australia some Ce units have hit  the surplus market.  looks like they 
are from the 70s - that's 40  years old now.  What does the group think 
the probability of the  tubes having any Ce left in them and still 
working?   Is it  worth it now when one can use gps clocks to lock say an 
Rb?

Thanks for  your  thoughts

Tim

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