No, you don't 'need' any extra cooling,
Many hams have built a tube warmer,
We just use a socket and filiment transformer with the voltage set properly.
mounted in any old chasis that will hold em..
Hoever, for some of the hotter filiments, I've been known to put a box fan
at the bottom of the warmer blowing up,
Best wishes,
Rich
K5SF
From: Ken Brown <ken.d.brown@verizon.net>
Reply-To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Centurion
Date: Sat, 10 Dec 2005 19:58:32 -1000
A couple of other questions:
If I were to connect filament voltage ONLY to some tubes that have been
in stroage for a long time, would it be okay to do so without proper air
flow around the tubes? In other words, is the heat generated by the
filaments alone enough to damage the seals without proper air flow?
And, since running filaments at or slightly below nominal voltage saves
filament life, could I "clean out the gas" in a shelved tube effectively
with a filament voltage substantially lower than the specified voltage?
DE N6KB
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|