Lou Tristao worked for Tri-Ex way back (50-60's?) in Tulare, CA. They
parted ways and Tri-Ex moved to Visalia and Tristao started his own tower
He sold out to Palmer Industries in the early 80's and they never really
got going with the towers and Lou started another tower company. He had
several names, Tower Master, Tristao-Pratt, and then just Tristao. US Tower
them over in the mid 80's and made many, many improvements.
Tri-Ex was split up and the crankup up business eventually sold to Wil-Burt
in Ohio, who got out of the Amateur tower business. Karl Tashjian, who was
the engineer at Tri-Ex, started making towers based on Tri-Ex but somewhat
improved, and on a much smaller scale.
_Communications Service Co_ (http://members.aol.com/kj6y/skip.html)
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