[Amps] AL-1200/1500 question

[Greg Chartrand]

I had a similar problem with my AL-1200 and solved the problem. I suggest looking at:http://www.mods.dk/view.php?ArticleId=4311

I documented the cause of the problem and the fix.
Greg
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Greg Chartrand - W7MY 
Richland, WA.
DN-06IF

W7MY Home Page:
http://webpages.charter.net/w7my/

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Message: 4
Date: Thu, 5 Mar 2009 14:13:32 -0500
From: Jack Shirley <jcshirle at gmail.com>
Subject: [Amps] AL-1200/1500 question
To: "amps at contesting.com" <amps at contesting.com>
Message-ID:
    <fc75e0a10903051113v6f91ea29r27ffeadc415e0664 at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

Ameritron uses a step-start circuit in the AL1200 and 1500 which uses a
relay to short out a 10 ohm series resistor in the transformer primary to
limit current inrush. The relay in question is rated 15 Amp resistive.  I
found mine to be welded closed. Seems like too low a value to me.  Is this a
common failure in these amps?

The other relay which controls the op/stby is rated at 30A.

Jack Shirley.N8DX


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