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[Amps] DC On tube filaments

To: <amps@contesting.com>
Subject: [Amps] DC On tube filaments
From: ad5gb@yahoo.com (Randall DuCharme)
Date: Wed, 9 Oct 2002 08:42:27 -0700 (PDT)
Greetings,

I'm told by an old Army radio operator that they used
to periodically reverse the filament polarity on a
transmitter ( the exact nomenclature escapes me at the
moment ) that used an 813 and a DC filament supply, to
extend the filament life.  I have no first hand
experience with this myself but have been tempted to
try it.  



--- MorgusMagnificen@aol.com wrote:
> Those who are opposed to DC on filaments should
> immediately notify the 
> Department of Defense, as they have apparantly being
> erroneously doing this 
> in all of that aircraft electronics since the days
> of the Wright Bros. 
> (almost).
> 
>        Remember the 1625? It was an 807 with a
> specially re-designed filament 
> to run on 12VDC, with two of them (wired in series)
> in the ARC-5 TX's powered 
> directly from 24VDC.
> 
> Eric von Valtier K8LV
> 
> 
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=====
Microsoft is not the answer.
Microsoft is the question.... and the answer is NO!

Randy  (AD5GB)

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