In a message dated 98-11-17 07:04:25 EST, jonk@jskent.com writes:
> I have the opportunity to pick up a TRI-EX 40' tower that is about
> 16 years old. It has no name plate, so I can't tell which model it is.
> It is a two-section hand crank-up, the bottom section is about 6-9"
> on a side and it has a base plate about 2'x2'.
> 2) Is it possible to add a section and make it a 60' tower?
Not likely. DO NOT try this at home. Crank-up towers are complex
mechanical devices. Do not try any 'hip-pocket engineering' with these
potentially dangerous structures.
> 3) The cable is brown with rust:Is it advisable to replace it?
Probably mandatory. Pulleys too.
> 5) The structure looks good, but covered with the dull aluminum oxide.
> I'm inclined not strip or paint it, but is that wise given my QTH near
> the ocean?
This is a steel tower. How could it be covered with aluminum oxide? You
must be referring to an oxide over the galvanizing.
All things considered, I would be pretty leary of this tower. It sounds
like its condition is marginal at best and it'll take a lot of time and work
to get it into reasonable shape. I'd opt for a new one that's a known quantity
- you won't be disappointed.
Cheers, Steve K7LXC
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