...and the Tri-Ex tower steel models are still being built under the new
name of the company, Tashjian Towers Corporation. Still great quality
and strength in steel. I had never previously noted their "special
lightweight alloy" and it isn't mentioned in contemporary
communications. Their web site includes the same towers with the same
names as back in the Tri-Ex days. I'm awaiting delivery of a DX70
crank-up/tilt-over with two each 1 hp motors. As per my request they
shipped me the rebar cage in advance.
Patrick NJ5G
On 1/24/2016 9:03 PM, dw wrote:
This was in a 73 Magazine article, October 1980
https://archive.org/stream/73-magazine-1980-10/10_October_1980_djvu.txt
Model TM-Series
The Sky Needle series supports large amateur beams.
Hinged base mount included for concrete base.
Geared tele-scopic winch included.
Motor included with 70', 90' & 100' models.
Come to Tri-Ex for innovative tower design and
engineering! Our towers are famous all over the
world for their strength, stress and wind resistance.
Now you can buy a superior Tri-Ex tower at
FACTORY SAVINGS!
Choose your metal. Towers can be fabricated in
steel to ASTM Specifications with hot-dipped gal-
vanized finish (done after construction so that inside
surfaces are zinc-coated, too). Or in Triexium™, our
lightweight, corrosion resisting, high-strength light
alloy.
Tri-Ex HAM towers are available self-supporting or
guyed; take your choice. The W series of crank-up
towers, the LM series of crank-up/tilt-over towers
and the TM sky needles are self-supporting.
Use your charge power to buy your tower. Tri-Ex
honors Visa and Master Charge credit cards. If you
have questions about tower accessories or which
size tower is right for your antenna, call Bill Salerno,
his technical sales know-how is ready to serve you.
On Sat, Jan 23, 2016, at 09:50 AM, jimlux wrote:
On 1/23/16 9:36 AM, Wilson wrote:
Good grief!
Get some 4’ scraps of pipe or rebar and drive them in!
Your problem will be pulling them out. We use a tractor and boom pole at our
FD!
We also use an electric demo hammer to drive them...pretty lazy!
If you go to dfma.org, you can see some of this happening in the picture
gallery.
That works great, if you're somewhere it's legal or permitted to drive
things into the ground. There's lots of field day sites around where
they're fine with you going there, but not fine with you driving things
into the ground, or making alterations in the site (like a big parking
lot). That's where various ballast and weight schemes are nice.
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