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Re: [Amps] 3-500zgs

To: "Amps" <amps@contesting.com>
Subject: Re: [Amps] 3-500zgs
From: "Jason Buchanan" <jsb@digistar.com>
Date: Sat, 31 Dec 2005 13:23:14 -0500
List-post: <mailto:amps@contesting.com>

>  I don't think you want to run it in SSB (4kV) mode with a continuous 
> output (like data or AM).  My 3K-A with RF Parts ZGs will do that, too but 
> the Tubes get pretty bright orange!!  I can get almost 2500W PEP out of it 
> with ~175W drive, but I stick to 80-100W or so.
>
>  On AM, I leave it in CW (3kV) and drive it to 375W Carrier.  Seems like 
> it'll make output there aaaallllll daaaayyyyy  looooooongggg...  And the 
> tubes only show a little color.  (You know how us AM'ers are!!  :-)  )

Must be the ZSAC - on my L4 on SSB position there is about 200mA, on CW 
position around 150mA.  And i'm thinking the thickness of the plate material 
must be considerably more thin in the old Eimac 3-400Z than the 3-500ZG 
tubes.  I know the Amperex 3-400Z 8163 take more current to get orange than 
the eimac 3-400Z.

73 Jason N1SU

-- 
Jason Buchanan - Boxboro, MA  FN42fl
Website: http://n1su.com/

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