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Re: [Amps] Is Amps still in existence?

To: "Ian White GM3SEK" <gm3sek@ifwtech.co.uk>, <amps@contesting.com>
Subject: Re: [Amps] Is Amps still in existence?
From: "Paul Christensen" <w9ac@arrl.net>
Date: Sun, 8 Oct 2006 11:52:21 -0400
List-post: <mailto:amps@contesting.com>
> OK, here's a question: any recommendations for a coil former material
> that can withstand a bit of heat? The 80/160m tank coil in my amp gets
> quite warm during RTTY contesting -  not hot enough to indicate a design
> problem, but even a moderate increase in temperature makes the
> fibreglass tubing former smell quite unpleasant.

Ian:

How about no form at all?  Can you increase the wire or tubing size and only 
use a form for winding purposes only -- then remove the form.  With large 
enough wire or tubing, a form should not be required unless you have many 
turns.

In the alternative, I've seen many ceramic coil forms on the surplus market 
from EF Johnson, Millen, and National.

Paul, W9AC 

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