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Ceramic insulators for long wire - where can I obtain some ?

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Rob Rogers

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Dec 9, 1999, 3:00:00 AM12/9/99
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Hi

I'm trying to find 2 'pairs' of ceramic insulators to go either side of a
watertight panel / bulkhead to allow a long wire to be fed through.

Essentially I have an external ATU in a box and I need a decent coaxial
ceramic insulator to get the RF from the inside of the box to the outside,
without letting the rain get in from the outside !

High power not needed as only running 200 pep.

Any ideas ? A UK source would be preffered but not essential.

73 Rob G2FGT


N Spokes

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Dec 9, 1999, 3:00:00 AM12/9/99
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Rob, check your local university engineering or physics dept that is
involved in any way with space research - they probably will have vacuum
systems that use ceramic insulated feed throughs that they can let you have
from old used systems. I used rubber gasketed systems too for high vacuum
purposes. Why ceramic? Usually only needed if you have to bake something
for special purposes. Consider feeding from below with a drip loop.
Neil, AB4YK.

Rob Rogers <rog...@globalnet.co.uk> wrote

Rob Rogers

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Dec 9, 1999, 3:00:00 AM12/9/99
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Neil, thanks, did I say Ceramic ?! sorry, I meant Porcelain !


N Spokes <nsp...@erols.com> wrote in message
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Bob Miller

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Dec 9, 1999, 3:00:00 AM12/9/99
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"Rob Rogers" <rog...@globalnet.co.uk> wrote:

>Hi
>
>I'm trying to find 2 'pairs' of ceramic insulators to go either side of a
>watertight panel / bulkhead to allow a long wire to be fed through.
>

>Essentially I have an external ATU in a box and I need a decent coaxial
>ceramic insulator to get the RF from the inside of the box to the outside,
>without letting the rain get in from the outside !
>
>High power not needed as only running 200 pep.
>
>Any ideas ? A UK source would be preffered but not essential.
>
>73 Rob G2FGT
>
>

There are some fine-looking ceramic feed-through insulators at:

http://www.surplussales.com/SSIndex.html

Only problem might be the international shipping required.

Bob
n5ahy


Rob Rogers

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Dec 9, 1999, 3:00:00 AM12/9/99
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All

Thanks Bob, great tip, stuff on order, call closed !

73 Rob

Rob Rogers <rog...@globalnet.co.uk> wrote in message
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