I'm interested in knowing the general answer for any of the tubes. In
specific I have a pair of 3PCX800A7 I bought when I had my Ten-Tec
Titan and they were full output tubes. With the thought I may get an
amp that uses them, I've kept them on a shelf but sold the amp. I
also have a spare 3CPX1500A7 for the AL-1500 and that's at least a
tube I can put in a rig.
I have an Astron variable volt and amp PS which can be used to hook
up the 3CPX800's to let them warm up for a period, if that would be
of help. If not, I don't want to bother.
Gary
KM1H
> It depends upon the tube Gary, some are known to degrade (outgas) and others
> arent. A few have poor air seals and turn to paperweights.
>
> If you have the means to regetter before applying full HV or RF then do it.
> Most of the indirectly heated types just require a day or so of filament
> voltage only.
>
> Otherwise pull a Dirty Harry.
>
> Carl
> KM1H
>
>
>
> ----- Original Message -----
> From: "Gary Smith" <Gary@ka1j.com>
> To: <amps@contesting.com>
> Sent: Wednesday, October 03, 2012 12:20 AM
> Subject: [Amps] preserving tubes
>
>
> > Is there any benefit to taking a ceramic tube on the shelf and
> > running it every so often and then returning it to the shelf to
> > archive it for a backup when needed? Or os it just as well to let it
> > sit until needed?
> >
> > Gary
> > KA1J
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> >
> >
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