How about Teflon Ian?
Last week I replaced the toroid core and side insulators of my HF amp
(40-80-160 m tank coil) for Teflon ones. So far @ 6 kW Dauerstrich it seems
to keep up quite well.
Cheers, Dick
PA3DUV
----- Original Message -----
From: "Ian White GM3SEK" <gm3sek@ifwtech.co.uk>
To: <amps@contesting.com>
Sent: Sunday, October 08, 2006 5:30 PM
Subject: Re: [Amps] Is Amps still in existence?
> k7fm wrote:
>>Still here - waiting for something to argue about.
>>
>>The problem is that if most of the people that have the answers are here,
>>and they all somewhat agree with each other, and there is no one taking
>>the
>>opposite position, or taking the position that one fix cures all problems,
>>then there is not much reason to speak out.
>>
>
> Yes, exactly that.
>
>
>>While there is a lull, we can finish our amplifier projects. Winter is
>>coming (in the northern hemisphere) and time to finish those outdoor
>>antenna
>>projects we postponed all summer, because it was too hot.
>>
>>Climb the tower to repair the open wire feeder system that is hanging -
>>one
>>side severed - at the 140 foot level of the tower. Finish assembling and
>>installing the new beam - and finish the lighting and heating system in
>>the
>>barn.
>>
>
> Same here, though all on a smaller scale of operations than Colin.
>
> 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.
>
>
>
> --
> 73 from Ian GM3SEK
> http://www.ifwtech.co.uk/g3sek
>
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