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Total 366 documents matching your query.

241. [TowerTalk] Rotor Removal (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Thu, 17 Jul 1997 23:50:37 -0700 (PDT)
My favorite way to take care of the "locking collar" problem is to just turn the collar upsidedown, defeating the locking mechanism. The collar works fine that way and rides nicely on top of the bea
/archives//html/Towertalk/1997-07/msg00587.html (8,224 bytes)

242. [TowerTalk] Where to get thrust bearing? (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Thu, 17 Jul 1997 23:50:41 -0700 (PDT)
If it is really Rohn 20G, it is already overloaded since that tower is for TV antennas and that's about all. A thrust bearing won't help you make the tower stronger which is a serious problem for yo
/archives//html/Towertalk/1997-07/msg00588.html (8,757 bytes)

243. [TowerTalk] Installing a mast. (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Thu, 17 Jul 1997 23:50:52 -0700 (PDT)
Let's see now, your 24 foot mast weighs 150 pounds. The ground crew will have to put 150 pounds of pull on the down rope to raise it which means the gin pole will have to support 300 pounds. Now ano
/archives//html/Towertalk/1997-07/msg00589.html (7,828 bytes)

244. [TowerTalk] Rohn 45 base (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Thu, 17 Jul 1997 23:51:15 -0700 (PDT)
concrete as per spec. Is there any advantage to using the short SB45G vs using a regular 10 foot section? None that I know of. Stan w7ni@teleport.com -- FAQ on WWW: http://www.contesting.com/towerta
/archives//html/Towertalk/1997-07/msg00590.html (7,221 bytes)

245. [TowerTalk] Emoto rotor in Rohn 25G (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Thu, 24 Jul 1997 23:28:49 -0700 (PDT)
Dave, I have two Tailtwisters mounted between the top section and the one below it on two different 25G towers as you describe. I cut one of the bottom horizontals out of both top sections so I can
/archives//html/Towertalk/1997-07/msg00724.html (8,583 bytes)

246. [TowerTalk] Best Homeowners Insurance for Hams? (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Thu, 24 Jul 1997 23:29:26 -0700 (PDT)
Don't know about you, but I would say that lightning is quite natural and when it strikes a power line, that would have to be a "naturally induced" power surge. An "artificially induced" power surge
/archives//html/Towertalk/1997-07/msg00725.html (9,220 bytes)

247. [TowerTalk] An Engineering Question (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Wed, 4 Jun 1997 01:14:02 -0700 (PDT)
I hate to disagree with you Rick, but as your diagram (pretty good, actually) clearly shows, the power company does NOT use elevated guy posts. The mechanics of what the power company does are quite
/archives//html/Towertalk/1997-06/msg00141.html (8,494 bytes)

248. [TowerTalk] Re: An Engineering Question (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Wed, 4 Jun 1997 01:14:15 -0700 (PDT)
Also, sailboats MOVE with the wind reducing the effective windspeed relative to the mast. I hope your tower stays put . . . Stan w7ni@teleport.com -- FAQ on WWW: http://www.contesting.com/towertalkf
/archives//html/Towertalk/1997-06/msg00142.html (7,136 bytes)

249. [TowerTalk] Re:An Engineering Question (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Wed, 4 Jun 1997 01:14:12 -0700 (PDT)
For what it's worth, I notice that a yacht's mast is not vertical with respect to the earth's surface when under sail. It rolls the boat over pretty good. Again, I suspect the mechanics of this are
/archives//html/Towertalk/1997-06/msg00143.html (7,722 bytes)

250. [TowerTalk] Rohn Crankup Tower?? (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Wed, 4 Jun 1997 01:15:52 -0700 (PDT)
Well, I have an antique Rohn catalog dated September 1969 which has data on Roph crankups in it. A brief glance at the info showed the following: 1. Rohn had two series of crankups: SD (standard dut
/archives//html/Towertalk/1997-06/msg00144.html (9,639 bytes)

251. [TowerTalk] Towers in LA County (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Wed, 4 Jun 1997 01:17:04 -0700 (PDT)
Hi Mike, I went through a "tower trauma" in LA in about 1964. I was living in Canoga Park in the San Fernando Valley at the time. This was actually within the city limits of LA. As I recall it, I li
/archives//html/Towertalk/1997-06/msg00145.html (9,730 bytes)

252. [TowerTalk] Re:An Engineering Question (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Thu, 5 Jun 1997 04:44:07 -0700 (PDT)
LOTS left out regarding sail boat masts . . . You have convinced me, John. Next time I'll just bury a sailboat and use that to hold up my antennas :-) Stan w7ni@teleport.com -- FAQ on WWW: http://www
/archives//html/Towertalk/1997-06/msg00196.html (7,466 bytes)

253. [TowerTalk] Coupling Selsyns (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Thu, 5 Jun 1997 04:44:20 -0700 (PDT)
I have used 10 speed bicycle chain, sprockets, and chain tighteners with good success. They are cheap and available everywhere. Have had one set in use for more than 20 years without a problem. It's
/archives//html/Towertalk/1997-06/msg00197.html (7,117 bytes)

254. [TowerTalk] thimble gap too narrow (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Mon, 9 Jun 1997 02:34:14 -0700 (PDT)
I found the easiest way to deal with that problem is to clamp one side of the thimble in my bench vise and bend the other side away from it with a pair of pliers. This opens the jaws up "sideways" a
/archives//html/Towertalk/1997-06/msg00292.html (9,047 bytes)

255. [TowerTalk] Big soldering irons (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Wed, 11 Jun 1997 12:28:03 -0700 (PDT)
On the tower, I sometimes use a portable butane soldering iron. Instant heat, enough for a PL259, small size, light weight, no electricity required, refills with lighter fuel, real handy. Stan w7ni@
/archives//html/Towertalk/1997-06/msg00357.html (8,477 bytes)

256. [TowerTalk] Rotor Installation (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Wed, 18 Jun 1997 02:54:23 -0700 (PDT)
K7LXC has said many times that a Ham-M or Ham IV will fit right in between the diagonals without cutting or permanently bending any of them. I doubted it, but he is right. I put one in my tower near
/archives//html/Towertalk/1997-06/msg00594.html (9,517 bytes)

257. [TowerTalk] Pointy-Top Discussion AGAIN! (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Wed, 18 Jun 1997 17:33:59 -0700 (PDT)
Hi Lee, I think there are a couple of alternatives that you didn't mention. Read on. I really like 2" masts since they match rotators, beam mounting hardware, and thrust bearings much better besides
/archives//html/Towertalk/1997-06/msg00621.html (10,345 bytes)

258. [TowerTalk] Re: extending tower masts (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Fri, 20 Jun 1997 11:13:33 -0700 (PDT)
Actually, lots of them just fail when the wind comes up . . . Stan w7ni@teleport.com -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative r
/archives//html/Towertalk/1997-06/msg00670.html (7,383 bytes)

259. [TowerTalk] Tower Complaints (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Mon, 23 Jun 1997 00:52:09 -0700 (PDT)
Awhile back, I posted parts of a story about my friend K7JB and his quest to get permission to put up a new 70 foot tower in Washington County, Oregon. Things have gotten real tough here and the Coun
/archives//html/Towertalk/1997-06/msg00743.html (9,698 bytes)

260. [TowerTalk] BX Series Towers (score: 1)
Author: w7ni@teleport.com (Stan Griffiths)
Date: Mon, 23 Jun 1997 00:52:13 -0700 (PDT)
The BX is getting a little bit of a bad rap in general, and But that is only because the entire BX series is crap. This is, of course, only my opinion, based, however, on seeing two of them fold over
/archives//html/Towertalk/1997-06/msg00744.html (7,460 bytes)


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