[TowerTalk] Looking for a Force 12 EF-140 40m rotatable
jim.thom at telus.net
Tue Jan 30 11:47:36 EST 2018
Date: Sun, 28 Jan 2018 20:50:20 -0500
From: <ericrosenberg.dc at gmail.com>
To: <towertalk at contesting.com>
Subject: [TowerTalk] Looking for a Force 12 EF-140 40m rotatable
<I'm looking for a Force 12 EF-140, the 40m rotatable dipole add-on for my
<(20 year old?) C3-SS.
<Anyone have one they no longer need or have lying around in the backyard or
<Email me direct if you have one available.
<Thanks & 73,
## I have 2 of them, never used. But mine are 44 foot long types, and used alumoweld
wires for the linear loading portion. The original 3 el 40m array used a one off mounting scheme
for the DE. The DE was mounted on the mast...3-7 foot above the boom. I sold the DE a while
back, but still have the REF+ DIR, etc. All 3 els were 44 ft long. The shorting wire on the LL
assy, determined the resonant freq of each of the 3 els. They are tunable from well below 7 mhz,
to above 7.5 mhz. 12 lbs per ele. Triple walled in the center, very thick, like .175 inch thick, then double walled,
then single wall. Each ele is 1.5 sq ft.
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