Thought others might be interested. At my Polyphaser SPOE copper panel, I have
had quite a few Polyphaser control line surge protectors as well as coaxial
surge protectors. The installation originated in 1999 and was built up over the
next few years during the former multi-op contesting days at VE1JF.
I have removed most of my antennas except for 6M EME and am partway through
rewiring the control and power wires to my K0XG el-az rotator. Unrelated to
those particular wires, and unused since I removed some no-longer-needed ctrol
wires, I noticed a pile of powder below my copper panel. Turns out it is the
mortal remains of much of my case to an IS-RCT—one end and parts of bottom and
sides are turned into a whitish powder.
This has happened since I removed the wires (sold the cables to other hams).
The case was fastened to the copper panel by its normal built-in bolt and by a
nut on the outside of the SPOE. It is not touching anything else.
The outside of the SPOE is fully enclosed in a wooden structure I call my
doghouse. The inside is in my old basement, which is not deliberately heated
but does contain our two furnaces. The environment here includes salty air.
Looking with renewed interest at the other units, I found some early limited
evidence of a similar development.
I may or may not have coated the intersection with the gold goo when it was
installed. Actually, I think the copper panel (which looks green in that area)
is contacted by the nut on the control unit side of the SPOE and not by the
unit directly. If I should do something to protect the remaining units, I could
remove the remaining units long enough and just far enough to coat the
intersection.
Jim, VE1JF
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