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@gmail.com>
Subject: [Amps] AL-1200/1500 question
To: "amps@contesting.com" <amps@contesting.com>
Message-ID:
<fc75e0a10903051113v6f91ea29r27ffeadc415e0664@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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