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[Towertalk] Tubular Telescopic Masts

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Subject: [Towertalk] Tubular Telescopic Masts
From: (Mike Newman)
Date: Wed, 11 Sep 2002 16:13:15 +1200
I've got some large diameter galvanised water pipe here (4" and 3" NB) and
thought I'd
make a telescopic mast like the Wilson.

Can a Wilson owner tell me are the tubes in the Wilson mast all circular,
and if so, how is the inner tube prevented from rotating in the outer tube.
Is there a keyway of sorts.

I'd be pleased to hear from you.

73    Mike    ZL1BNB

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