I have the same setup to switch my half sloper between 80 and
160. I use a Jennings RF3A Vacuum Relay that a friend gave me.
I get the 26 VDC for the coil from one of those little Radio
Shack 12V 2.5A power supplies. They have 26 VDC inside, ahead of
the regulator, so I just brought it out on a pair of wires.
Dave Hachadorian, K6LL
Yuma, AZ
-----Original Message-----
From: Gene Smar
Sent: Thursday, November 23, 2017 10:17 AM
To: towertalk@contesting.com
Subject: [TowerTalk] Relay for sloper element
TT:
I want to be able to switch a piece of #14 house wire onto
the far end
of a sloper wire I have for 75 M phone so I can operate lower in
the band.
I'm thinking of adding a relay in a weather-resistant box at the
sloper's
end insulator and continue with the extension wire beyond that.
FYI: The sloper wire runs from the 50 foot point on my
tower to my
house roof where it is tied to an end insulator and thence to a
PVC vent
pipe via a bungee cord. The wire runs through tree limbs, hence
my need for
a flexible connection. I'm thinking I can mount the relay/box
near the end
insulator and extend the additional wire further across the roof.
I'm
thinking I can run 15 +/- VDC to it from the station supply in
the shack via
RG-58 coax up and across the roof to the relay box.
My question to this august group: What relay (and supplier)
would you
recommend for the job?
In the alternative, can you point me to a good source of
info on
designing traps for said application? The trap would not require
any DC for
switching but might take more "cypherin' " to get working.
Many thanks and Happy Thanksgiving to all y'all.
73 de
Gene Smar AD3F
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