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Re: [Amps] ALPHA 9500 Question (Fault 21)

To: Amps group <amps@contesting.com>
Subject: Re: [Amps] ALPHA 9500 Question (Fault 21)
From: Bill Turner <dezrat@outlook.com>
Date: Mon, 31 Oct 2016 15:38:13 +0000
List-post: <amps@contesting.com">mailto:amps@contesting.com>
------------ ORIGINAL MESSAGE ------------(may be snipped)

On Fri, 28 Oct 2016 15:46:16 -0700, David wrote:

>
>I am getting Fault 21 on my Alpha 9500.  The Fault Decoder Sheet from their
>website says it has to do with the Cathode +40V bias PS.  It suggests that
>it might be a shorted tube.  The tube is not shorted. 

REPLY:

I had a 9500 where the tube arced and blew out the 40 VDC supply. Your
tube may not be shorted now but I suspect it arced at one time. 

Fortunately my 9500 was under warranty and Alpha repaired it at no
charge, not even for shipping. 

73, Bill W6WRT
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