[BC] Idle transmitter tube life...

[Milton R. Holladay Jr.]

The only tube that I ever saw go bad just sitting was a low hours Penta
rebuilt 6697;       $ 3000 STH......
M
----- Original Message ----- 
From: "Stan Tacker" <stacker at krvt.com>
To: "'Broadcasters' Mailing List'" <broadcast at radiolists.net>
Sent: Sunday, June 04, 2006 12:54 AM
Subject: RE: [BC] Idle transmitter tube life...


> Burt,
>
> Never had a problem with the big tubes.  It was always the 807 or smaller
> that would turn blue.
>
> Stan
>
> -----Original Message-----
> From: broadcast-bounces at radiolists.net
> [mailto:broadcast-bounces at radiolists.net] On Behalf Of Burt I. Weiner
> Sent: Saturday, June 03, 2006 11:45 PM
> To: broadcast at radiolists.net
> Subject: [BC] Idle transmitter tube life...
>
> I know of one transmitter that has 833 in the modulators and
> finals.  It gets turned on about once a year and is always raring to
> go.  If you have a decent seal on the tube/s it should be able to sit
> with the filaments off for many years with no problems.  I always
> tried to get JAN or Eimac tubes.  The JAN 833's were great.
>
> Burt
>
> At 08:38 PM 6/3/2006, you wrote:
> >From: Charles Ring W3NU <charlesr at infonline.net>
> >Subject: Re: [BC] bta-250m
> >To: "Broadcasters' Mailing List" <broadcast at radiolists.net>
> >Message-ID: <448251C7.30402 at infonline.net>
> >Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> >Stan Tacker wrote:
> > > As a curator of a 250GY, BTA-1R, 20-V3, BC1-F, and BA-1k, I can attest
> that
> > > these rigs sound great with fresh tubes.  All of these have been
> replaced
> > > with solid state transmitters as the main.  As for using the tube rigs
> as a
> > > standby...well, just don't turn off the filaments!  Let these rigs go
> dark
> > > for a few days and the tubes get gassy quick.  (Actually the
> > McMartin can be
> > > counted upon to restart at some power level, since it has a solid
state
> > > driver).
> > >
> >
> >I've seen many 833A's, 807's and others do fine after sitting idle
> >indefinitely. My experience with 4-400's is limited. I may have a chance
> >to restore a 20-V2 to working order but the blower for two of its
> >4-400's is missing. Any suggestions for a replacement?
>
> Burt I. Weiner Associates
> Broadcast Technical Services
> Glendale, California  U.S.A.
> biwa at earthlink.net
> K6OQK