"The candle that burns twice as bright, burns half as long..."
I've heard, but have not verified myself, that 5071A
high-performance tubes will last at least 7 years of
continuous use and that 5071A standard-performance
tubes can last around 20 years.
For high-perf tubes end-of-life is usually
: time-nuts@febo.com
> Subject: [time-nuts] Maximizing Cs Tube Life
>
>
>
> "The candle that burns twice as bright, burns half as long..."
>
> Are both your units the high-performance version? These units
> get their performance boost by doubling the beam current...
>
> "The candle that burns twice as bright, burns half as long..."
>
> Are both your units the high-performance version? These units
> get their performance boost by doubling the beam current... at
> the expense of half the life. As a side "benefit" of the
> increased beam current, you can ge
eme...@mchsi.com
> Sent: Friday, July 10, 2009 7:58 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Maximizing Cs Tube Life
>
>
>
>
> I have a similar question I have 2 hp 5071a and I purchased one
> new in the box never opened and on
"The candle that burns twice as bright, burns half as long..."
Are both your units the high-performance version? These units get their
performance boost by doubling the beam current... at the expense of half the
life. As a side "benefit" of the increased beam current, you can get
increase
I have a similar question I have 2 hp 5071a and I purchased one new in the box
never opened and one used.both have been in operation over a year, the new one
high perf tube new style tube US4240 started out in storage for two years
before I plugged it in for the first time..the pump went rig
>
> I have a 5061A and 5061B and both have a position on their front
> panel MODE
> switch that is CS OFF. When in this position the CS OVEN is off, the OSC
> OVEN is on, the ION PUMP is working and there is signal out (10
> MHz, 5 MHz,
> 1 MHz, 100 KHz, as appropriate) as measured by the CIRCUIT
s,
Joe
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of John Miles
Sent: Friday, July 10, 2009 12:48 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Maximizing Cs Tube Life
Many standards have a
Many standards have a rear-panel jack for a dedicated ion-pump supply, which
can be left powered up 24/7. If you run the ion pump continuously, but not
the Cs oven, the tube will presumably last forever.
I added a switch to my 5062C that allows me to leave it plugged in with the
ion pump and OCXO
Hello Time-nuts,
Just wondering what the group concensus might be concerning maximizing Cs
tube life. On one extreme, if a tube is not used at all it will lose its
vacuum. That is why Symmetricom instructs that stored tubes be powered for
at least 30 minutes each 6 months. At the other extr
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