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Re: [Amps] Filament life

To: Gudguyham@aol.com, rob@sherweng.com, amps@contesting.com
Subject: Re: [Amps] Filament life
From: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>
Reply-to: g3rzp@g3rzp.wanadoo.co.uk
Date: Sat, 15 Jul 2006 16:20:05 +0200 (CEST)
List-post: <mailto:amps@contesting.com>
Bearing in mind the effects of metal migration, do you get as good a filament 
life on DC as on AC? I know the old dull emitter filament valves were quite 
good, but there's a lot of difference in metal migration between just about red 
heat and bright yellow.

73
Peter G3RZP
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