Rick,
The mechanical .058 typicial wall thickness common in antenna construction
leaves a .009 differnece and a .0045 gap .
Many of the popular Nolax or Penatrox or NONE conductive the aluminum or
copper no seize have conductivity.
IMHO the Electrolysis the develops on none coted surfaces IS none
Conductive. We than have the skin effect argument to no disassemble.
Being a Belt and suspender type I vote to completely disassemble the
antenna and scotch pad or XX steel wool all mating joints and use the copper
antisize and re assemble
Wayne W3EA
My .02
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
________________________________
From: TowerTalk <towertalk-bounces@contesting.com> on behalf of Richard (Rick)
Karlquist <richard@karlquist.com>
Sent: Wednesday, July 17, 2019 6:20:56 PM
To: towertalk@contesting.com
Subject: [TowerTalk] Question regarding electrical connectivity of frozen
telescoping aluminum tubing
I bought a used KT34XA and between the seller and me I disassembled
it enough to get it home. Another KT34XA owner recommended that
I disassemble it completely and buff it with Scotch bright and
then reassemble using NoAlOx. The purpose of this was to assure
good electrical conductivity.
This raises the question: if an old antenna has difficult to
disassemble tubing pieces, is it possible for two pieces
to be mechanically stuck together yet have poor electrical
connectivity? Or conversely, if conductivity looks good using
a 4 wire ohmmeter, are we in the "don't fix it if it ain't broke"
mode.
I've seen a lot of discussion about ways to unfreeze elements
but this topic doesn't seem to have been covered.
Rick N6RK
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