[Boatanchors] AM-8C/TRA-1 amp power supply info needed...

jeremy-ca km1h at jeremy.mv.com
Mon Sep 24 17:31:58 EDT 2007


Ahh, good old 4E27's.

For typical Class C : Ep 3000V; Ip 167ma; Es 500V Is 12ma (suppressor grid 
tied to screen); Eg -200V Ig 7ma; Drive Power 1.9W; Po 375W

Source is the Eimac full size spec sheets. They list several other voltages 
and class of operation. I could FAX or scan it.

Carl
KM1H






----- Original Message ----- 
From: "WE0H" <we0h at yahoo.com>
To: <boatanchors at mailman.qth.net>
Sent: Monday, September 24, 2007 4:07 PM
Subject: [Boatanchors] AM-8C/TRA-1 amp power supply info needed...


> Does anyone know what voltages the screen & plate are for this amplifier? 
> I am modifying one for 600 meters and have no clue what I need to build 
> for a screen supply or what voltage the amp should have on the plates.
>
> Would it be as simple as using the tube datasheet suggested voltages for 
> the class of operation it will be setup for?
>
> Thanks much,
> Mike
> WE0H
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