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Total 3 documents matching your query.

1. [TowerTalk] Plumbing Towers (score: 1): Author: Pat Barthelow <aa6eg@hotmail.com>; Date: Mon, 21 Jan 2008 12:02:53 -0800; Folks: One instrument that may be useful to dermine plumb-ness of a tower is a surveyor's tribrach. This is a universal, precision mount that accepts theodolites, distance meters, or other instrument; /archives//html/Towertalk/2008-01/msg00447.html (13,238 bytes)
2. [TowerTalk] Plumbing Towers (score: 1): Author: "David Branson KC0LL" <kc0ll@hotmail.com>; Date: Mon, 21 Jan 2008 13:23:56 -0700; I built a jig and placed it on top my 90 foot self supporting Sabre tower, it held a nylon string in the middle of my three foot wide top section. I placed a heavy weight on the bottom of the string; /archives//html/Towertalk/2008-01/msg00448.html (7,459 bytes)
3. Re: [TowerTalk] Plumbing Towers (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Mon, 21 Jan 2008 13:07:46 -0800; One can also look at discount mail order suppliers like www.pqsa.com. I would think that one could fabricate some sort of bracket to mount a standard tribrach upside down. Obviously, the bullseye lev; /archives//html/Towertalk/2008-01/msg00449.html (15,563 bytes)

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