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[TowerTalk] Comtek stack unit failure

To: "tower and HF Antenna Construction Topics." <towertalk@contesting.com>
Subject: [TowerTalk] Comtek stack unit failure
From: Ignacy Misztal <no9e@arrl.net>
Date: Sat, 5 Nov 2022 22:05:58 -0400
List-post: <mailto:towertalk@contesting.com>
There were quite a few reports of failures of Comtek units usually
attributed to bad relays.  Recently my Comtek 2 stack unit was becoming
intermittent. It has sealed Potter-Brumfield relays so no water ingress. It
turned out that one connection was not soldered. Furthermore, the
jumper wire was very stiff and hard to solder. I am wondering what kind of
wire does Comtek use and whether Comtek's problems are due to poor
soldering with that wire?

Ignacy NO9E
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