The "no training" was one reason why I was told Phillystran no longer
sells the socket kits except to the military which apparently has a
training program.
However, after I did a lot of research about kevlar and epoxies, sawed a
commercial Philly socket in half, and potted some and tested them it all
worked out. One difficulty is the fixturing to keep the cable
absolutely straight into the socket. Another challenge is to keep the
epoxy in the socket when poured so I made fixtures for both of these
issues, and made 12 guys, potted Spelter sockets both ends.
So even cheap old Philly is not much of a bargain when all that work is
considered plus the cost of the sockets ($60 ea for 24k# Crosby closed
sockets, 2014).
Grant KZ1W
On 10/8/2018 18:44 PM, john@kk9a.com wrote:
Spelter sockets are indeed very nice, I had Phillystran install them on
11,200 pound cable before Big Grips were approved. I have never installed
them myself, I wonder safe they to do as a DIY project for someone with no
training or testing abilities.
John KK9A
To: towertalk@contesting.com
From: Martin Flynn W2RWJ
Date: Mon, 8 Oct 2018 17:16:34 -0400
Doug,
Crosby sells spelter sockets and epoxy kits
https://www.thecrosbygroup.com/products/sockets/spelter/mckissick-416-open-s
pelter-sockets/
They show up on the big auction site for under $50 each. By the time you
buy thimbles, a shackle, and the 4 clamps, it becomes cost neutral, and
yeilds a stronger connection to boot.
73 Martin
W2RWJ
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