Sounds like you might want to do some advance temperature testing with that
material first Bob.
If necessary try placing it behind a baffle to get away from the exhaust.
Fiberglass works well at HF and both rod and tubing are readily available
over here. Its a bit less heat sensitive than the plastics.
There is no ceramic available in Oz?
Carl
KM1H
----- Original Message -----
From: "robert briggs" <vk3zl@bigpond.com>
To: <amps@contesting.com>
Sent: Saturday, July 19, 2008 7:07 AM
Subject: [Amps] Plate choke material..
>
>
> Hi all, I am scratching around to find some material to make another
> couple of plate chokes for one of my new amplifiers..
>
> Price of 3/4 inch Teflon per foot here in Aus is outrageous....I have
> some Ultra High Density Polyethylene 3/4 rod here and wondering if this
> is suitable for the job?..The choke is in the vicinity of the tube
> exhaust and I certainly don't want to end up with a banana or worse...
> The choke is to be mounted horizontally..
>
> Regards all.....Bob VK3ZL..
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