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Re: [Amps] 8877 filament.

To: "Randall, Randy" <Randy.Randall@UCHealth.com>
Subject: Re: [Amps] 8877 filament.
From: Thomas Walsh <w2co@comcast.net>
Date: Thu, 4 May 2017 18:17:48 -0600
List-post: <amps@contesting.com">mailto:amps@contesting.com>
And the blower would still need to be on as well, to keep from
heat damaging the tube, it will still get hot. Never power a
filament with no forced air! Even reduced filament voltage..

Sent from my iPad

> On May 4, 2017, at 12:46, Randall, Randy <Randy.Randall@UCHealth.com> wrote:
> 
> I wonder how much the warmup delay would be shortened if the filament was run 
> at, say, 3 V on a 24/7 basis, and then increased to 5V when the amplifier was 
> powered up

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