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Re: [Amps] 813 Amplifier Article

To: "ka4inm@tampabay.rr.com" <ka4inm@tampabay.rr.com>, amps <amps@contesting.com>
Subject: Re: [Amps] 813 Amplifier Article
From: Bill Fuqua <wlfuqu00@uky.edu>
Date: Thu, 31 Mar 2011 09:58:59 -0400
List-post: <amps@contesting.com">mailto:amps@contesting.com>
The 4E27A/ 5-125A has 125 watt plate dissipation.
I have a number of them.
More than the older version.
73
Bill wa4lav

At 08:57 AM 3/31/2011 -0400, Ron Youvan wrote:
>Fuqua, Bill L wrote:
>
> > I have thought of replacing the 813's with 4E27A's. Has anyone used 
> 4E27A's in grounded grid.
> > They are pentodes with 125 watts plate dissipation and wire the 
> filaments in series since they are 5V.
> > They should have a nice plate glow to them and go in the same socket.
>
>     http://www.tubecollector.org/4e27.htm
>
>says the 4E27 has a 75 Watts plate dissipation.
>    ???  I believe the 4E27 is more rare than 813s.
>--
>     Ron  KA4INM - Endless Loop: n.        see Loop, Endless.
>                   Loop, Endless: n.       see Endless Loop.
>                   -- Random Shack Data Processing Dictionary
>
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