In a message dated 12/1/2006 4:48:39 A.M. Pacific Standard Time,
towertalk-request@contesting.com writes:
> Just wondering.........Who invented the crankup tower?
Lou Tristao (sorry, don't remember his callsign) is recognized as the
father of crank-ups. In the 1950's when commercial TV started broadcasting in
LA, people north in the central valley needed higher antennas to get the
signals. He came up with a crank-up tower to fill that need. He called it
Tristao
Expanding Towers. This was later shortened to Tri-Ex which is still around.
I think he got his son in business with his tubular tower design which
was Wilson products.
He died a couple of years ago.
Cheers,
Steve K7LXC
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