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Re: [TowerTalk] Thrust Bearing Concerns

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Thrust Bearing Concerns
From: Steve Harrison <k0xp@k0xp.com>
Date: Mon, 23 Jun 2025 11:29:51 -0700
List-post: <mailto:towertalk@contesting.com>
On 6/22/2025 5:06 PM, Paul Christensen wrote:
P.S.

The sheet overlap is held together with Dow Corning 736 heat-resistant RTV 
sealant.

Paul, W9AC

Believe it or not, most of the amplifier manufacturers use ordinary metallic STAPLES to hold the sheet into a cylindrical shape. The staple, of course, is spaced quite a ways from the "hot" (in more ways than one 8-) tube anode structure. Seems to work, although it certainly caused my eyebrow to rise when I first saw that. I think I'd rather use the staple than depend upon "heat-resistant RTV sealant" to hold the shape, though.

Steve, K0XP


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