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Re: [Amps] L-4B Switch

To: "amps@contesting.com" <amps@contesting.com>
Subject: Re: [Amps] L-4B Switch
From: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Mon, 05 Sep 2005 14:22:05 -0500
List-post: <mailto:amps@contesting.com>
On Mon, 05 Sep 2005 11:06:18 -0700, Marv Gonsior wrote:

>The consensus is that the root cause of the failures is the
>probable high inrush current to the power transformer so 
>anything that can be done to limit it will alleviate the problem.

A company I know from the pro audio world makes a product that addresses 
this problem. Check out the ICE modules made by SurgeX. 

www.surgex.com

http://www.surgex.com/products/ice20.html  

They're well respected in our industry, located near Philly, their marketing 
mgr (Don Kugler?) is a ham and pilot. Their main products are series-mode 
surge suppressors. Turn-on surges are a common problem with big sound 
systems, as dozens of big power amps all get turned on at once, each with a 
large inrush current to charge filter caps. 

Jim Brown  K9YC



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