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Some 35-40 years ago there was an "El Toro" (if memory serves correct, by
one of the
major 3 antenna companies, cant remember if was a dipole, or tuned wire
sloper
configureation, but was constructed from (think) 450 ohm ladder line, and
couple of traps
and good for the low bands. the traps were places on one side of the
ladder
line, at
strategic locations, to resonate this for (think 80-40-20, and maybe
15-10)
Kinda flimsy,
but where not much inclimate wx, seemed to work. Question 1) -- Who made
it
?
Question 2), anyone still got manual for it?? (think maybe mosely, or
hygain, but then
as stated, long time ago! Mught use coax for cap for it, and coil-- just
curious-
Jim NN7K (mail to (remove the
(nospam).
Tks
A quick Google.com search brought these references:
From: Fred Hopengarten" K1VR Mon Jun 13 01:35:32 1994
Subject: El Toro antenna
I used an El Toro antenna for Phone and CW SS as an undergraduate at Colby
College, Waterville, ME, in, I think,
1966. I erected it at two different locations: at the Outing Club Lodge by
BIG lake, and at the blockhouse for
spotters and broadcasters 50 feet above Colby's football field. Colby,
which plays the likes of Williams, Bowdoin,
Middlebury, and so forth, has a football program smaller than most Texas
high schools.
The rig for the contest was an NCX-3 (for you newcomers, a transceiver for
80-40-20 only, ssb and CW --
but CW had no offset and no RIT; but, unlike some other SSB transceivers at
the time, it was stable). I think I won one
of the weekends for Maine, but my conclusion, based on performance that
weekend and the context of other
experiments, was that the El Toro sucked wind. I think I only made about
250 QSO's in 25 hours. Everyone who worked
me that weekend (I was then W1NJL) is to be congratulated. I would say that
the signal was equivalent to a bad
experience with an eight foot whip.
If I could relive those two weekends, I'd erect an 80 meter dipole sloping
SW, fed with 300 ohm line, into an
antenna tuner (a dipole on 80 and two half waves in phase on 40); and a
dipole on 20 (down just 7 dB from a 3 el. Yagi).
Never underestimate the efficiency of a dipole -- just put it up as high as
possible.
Fred Hopengarten K1VR
Six Willarch Road * Lincoln, MA 01773-5105
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In early 1964, Dave Hollander (now N7RK) operated WN6IWX in Tustin, CA. His
Hallicrafters "pair" includes an HT-40 transmitter (left) and an SX-115
receiver. His antenna was a Mosley NC-3 "El Toro," and the station was
good for 44 states and 10 countries before Dave upgraded to WB6NRK. His Dad,
now N6UC, worked for Hallicrafters in Santa Ana, CA.
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From: Randy A Thompson, K5ZD Sat Jun 11 03:38:59 1994
Subject: Antenna Question
In June 94 CQ Magazine, World of Ideas column by K4TWJ, there is an
interesting antenna given the name "El Toro."
It is basically a 1/4-wave of 450 ohm open wire fed against ground.
K4TWJ writes about this antenna:
"Rather than using a single wire "worked against ground" (like a 1/4 wave
vertical), it is made of ladder line with ground connected to one
conductor. This simple step raises the antenna's signal radiation efficiency
from 20 to 60 percent."
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w9gb