The pix I see is not Rohn 20.
Rohn 20 is the same in all dimensions as 25 except that it has only 7 Z
braces and 25 has 8 Z braces so if you count the horizontal elements on 20
there will be 7, and on 25 there will be 8.
All sections and most, if not all accessories, are compatible with each
other.
73, George
----- Original Message -----
From: <towertalk-request@contesting.com>
To: <towertalk@contesting.com>
Sent: Wednesday, March 22, 2006 9:37 AM
Subject: TowerTalk Digest, Vol 39, Issue 58
> Send TowerTalk mailing list submissions to
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> Today's Topics:
>
> 1. Re: Can you ident me? (Ronald A. Stunden)
> 2. Re: [BULK] - Re: Can you name me? (K8RI on Tower talk)
> 3. US Tower Corp (Steve Robinson)
> 4. Re: Tubular Tower (Dudley Chapman)
> 5. Re: Identifiy me (Larrz3@aol.com)
> 6. Re: Identifiy me (Jerry-N7WR)
> 7. Re: Spaulding, from TT Archives .. (Jim Chaggaris)
> 8. Can you name me? Second pic. (Al Zelna)
> 9. unknown tower (George Shaw)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 21 Mar 2006 15:35:25 -0800
> From: "Ronald A. Stunden" <ve_7_yc@shaw.ca>
> Subject: Re: [TowerTalk] Can you ident me?
> To: towertalk@contesting.com
> Message-ID: <7.0.0.16.2.20060321153409.02089468@shaw.ca>
> Content-Type: text/plain; charset=us-ascii; format=flowed
>
>
>>What I ment to sya was Rohn 20G at least thats what I bought mine as
>>altho sounds like the 6.. Ron
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 21 Mar 2006 19:10:29 -0500
> From: "K8RI on Tower talk" <k8ri-tower@charter.net>
> Subject: Re: [TowerTalk] [BULK] - Re: Can you name me?
> To: "Steve Katz" <stevek@jmr.com>, <jimc@pwrone.com>,
> <towertalk@contesting.com>
> Message-ID: <006001c64d45$0a8ca730$6400a8c0@SecondOne>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
>
>
>
>> Doesn't look like Rohn 20 to me, unless they changed the way it's made...
>
> Nor does it lok like any of the American Steel, or American Standard
> towers.
> Both the one and two bolt per leg versions use round, horizontal cross
> braces.
>
> They did have a 5' section designed as a "dirt base", but the flat braces
> are closer to something like 10" to a foot tall.
>
> At least [bulk} isn't getting the files flushed, but I've not seen one
> that
> had the word digest in the subject line in several months.
>
> Roger Halstead (K8RI and ARRL 40 year Life Member)
> N833R - World's oldest Debonair CD-2
> www.rogerhalstead.com
>>
>> Rohn 20, like Rohn 25, always had zig-zag rod cross-bracing. It just has
>> thinner wall tubing for the legs and one less "step" per 10-foot section
>> than Rohn 25, so it weighs a bit less and wasn't rated as well.
>>
>> Rohn #6 had welded horizontal-only braces (no zig-zag or "Z" or "W"
>> bracing)
>> like that shown in the photograph. Rohn #6 hasn't been made in a long
>> time...I think the last one I bought was in about 1968 or 69.
>>
>> WB2WIK/6
>>
>>
>> -----Original Message-----
>> From: James Chaggaris [mailto:jimc@pwrone.com]
>> Sent: Tuesday, March 21, 2006 1:35 PM
>> To: towertalk@contesting.com
>> Subject: [BULK] - Re: [TowerTalk] Can you name me?
>>
>>
>>
>>
>> It tis Rohn 20...I used to have some up until about 20 years ago.
>>
>> 73's
>>
>> Jim N9WW
>>
>>
>> James E. Chaggaris
>> President
>> PowerOne Corp.
>> 1020 Cedar Ave.
>> Suite 110
>> St. Charles, IL 60174
>> Phn:(630) 443-6500
>> Fax:(630) 443-6505
>> Web: www.pwrone.com
>>
>> -----Original Message-----
>> From: towertalk-bounces@contesting.com
>> [mailto:towertalk-bounces@contesting.com] On Behalf Of Keith Dutson
>> Sent: Tuesday, March 21, 2006 2:46 PM
>> To: towertalk@contesting.com
>> Subject: Re: [TowerTalk] Can you name me?
>>
>> I posted the photo on my web site for Al:
>>
>> http://www.dutson.net/Transfer/HamRadio/UnknownTower/
>>
>> 73, Keith NM5G
>>
>> -----Original Message-----
>> From: towertalk-bounces@contesting.com
>> [mailto:towertalk-bounces@contesting.com] On Behalf Of Al Zelna
>> Sent: Tuesday, March 21, 2006 12:53 PM
>> To: towertalk@contesting.com
>> Subject: [TowerTalk] Can you name me?
>>
>> I am a used, guyed, galvanized steel tower that is 48 feet tall. I have
>> three legs spaced 11.5 inches on center. I had a tilt base, but my owner
>> decided to sink it to the bottom of 52 inches of concrete. I have lived
>> at
>> three separate QTH's from NNJ to EPA and may be 20 years old. or older
>>
>>
>>
>> My owner would really like to know my make and model. He would like to
>> add
>> a section or two to me because he thinks 20 feet more will let him work
>> the
>> world. He would really like to replace his TA-33 with a bigger beam for
>> the
>> same reason, but doesn't want to overload me.
>>
>>
>>
>> I have attached a small picture of myself, but I am not sure if this list
>> allows attachments. Can you please help him!
>>
>>
>>
>>
>>
>>
>>
>> 73 de "The tower" @ N3KAE
>>
>>
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>>
>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
>
>
> ------------------------------
>
> Message: 3
> Date: Tue, 21 Mar 2006 17:12:00 -0700
> From: Steve Robinson <wu9b@desertinet.com>
> Subject: [TowerTalk] US Tower Corp
> To: <towertalk@contesting.com>
> Message-ID: <C045E460.D488%wu9b@desertinet.com>
> Content-Type: text/plain; charset="ISO-8859-1"
>
>
> Back on March 5, I emailed this reflector about a problem I was having
> with
> a US Tower MA770-MDP which is the 70 foot tubular. I received a number of
> replies and I want to say thanks to all of you that did so.
>
> Recently however, I received a call from US Tower and they have offered to
> replace the tower at no cost to me, except perhaps for the shipping... We
> are still working out the details and I will keep you all posted.
>
> I was wondering if I made the right choice in selecting US Tower Corp for
> my
> tower but now I am very pleased. I can?t believe they have stepped up to
> the
> plate like this. This is awesome... I never enjoyed climbing towers and
> out
> here in the ?sticks? it?s nice to have a tower I can work on. I just crank
> it down horizontally and I never have to step any higher than my ladder!
> Many thanks to the folks at US Tower!
>
> Steve
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 21 Mar 2006 19:20:07 -0500
> From: "Dudley Chapman" <chief@thechief.com>
> Subject: Re: [TowerTalk] Tubular Tower
> To: <towertalk@contesting.com>
> Message-ID: <20060322002032.4FDBB3192CF@dayton.akorn.net>
> Content-Type: text/plain; charset="us-ascii"
>
> Message: 1
> Date: Sun, 19 Mar 2006 11:29:21 EST
> From: NPAlex@aol.com
> Subject: [TowerTalk] Build your own Square Needle
> To: towertalk@contesting.com, mjweaver@fmtcs.com
> Message-ID: <2c8.5ab92a2.314ee0e1@aol.com>
> Content-Type: text/plain; charset="US-ASCII"
>
> In a message dated 3/19/2006 10:35:44 AM Eastern Standard Time,
> towertalk-request@contesting.com writes:
>
> I would like to fabricate a tubular tower similar to a Wilson TT-45
> (crank-up, fold-over). I would appreciate any information were I could
> obtain construction plans.
> Thanks
> Mike
> K?BGP
>
>
> Back in the 80s there was an article in Ham Radio Magazine about building
> towers out of steel pipe. The designs were tilt-over, not crank-ups, and
> they were nested sections of pipe with decreasing diameter. The OM who
> wrote the article gave design formulas for calculating how long each
> tubular
> section had to be, given the desired height. He had de-rated the material
> strength to allow for using used pipe.
>
> These towers were quite simple to construct if you knew a good welder, but
> they were very heavy. I used to have an ancient piece of Basic code that
> did the calculations, but that was way back in the DOS days.
>
> I wonder if anyone here knows about this article or could comment if these
> towers were practical? I might be interested in making one, and it might
> be
> of interest to Mike, too.
>
> Dudley - WA1X
>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Tue, 21 Mar 2006 21:28:53 EST
> From: Larrz3@aol.com
> Subject: Re: [TowerTalk] Identifiy me
> To: towertalk@contesting.com
> Message-ID: <1bb.31a6ac.31521065@aol.com>
> Content-Type: text/plain; charset="US-ASCII"
>
> The Tower in question looks like what is referred to as a "gold nuggett
> tower" made in Canada. Called so because of the brazing technique
> assembling it.
> They are galvanized pieces fitted then brazed together using nickel
> braze.
> They are very lightwieght. That's what it looks like to me. Larrz3
>
>
> ------------------------------
>
> Message: 6
> Date: Tue, 21 Mar 2006 19:17:10 -0800
> From: "Jerry-N7WR" <N7WR@eoni.com>
> Subject: Re: [TowerTalk] Identifiy me
> To: <Larrz3@aol.com>, <towertalk@contesting.com>
> Message-ID: <005a01c64d5f$2008fe50$75cde4d8@D32QMB51>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> I agree with Larrz. I would have serious reservations about extending its
> height and putting a larger antenna on it.
> Jerry
> N7WR
> ----- Original Message -----
> From: <Larrz3@aol.com>
> To: <towertalk@contesting.com>
> Sent: Tuesday, March 21, 2006 6:28 PM
> Subject: Re: [TowerTalk] Identifiy me
>
>
>> The Tower in question looks like what is referred to as a "gold nuggett
>> tower" made in Canada. Called so because of the brazing technique
>> assembling it.
>> They are galvanized pieces fitted then brazed together using nickel
>> braze.
>> They are very lightwieght. That's what it looks like to me. Larrz3
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
>
>
>
> ------------------------------
>
> Message: 7
> Date: Tue, 21 Mar 2006 21:33:12 -0600
> From: "Jim Chaggaris" <jimc@pwrone.com>
> Subject: Re: [TowerTalk] Spaulding, from TT Archives ..
> To: "'TowerTalk'" <TOWERTALK@contesting.com>
> Message-ID: <000301c64d61$598d8090$6400a8c0@JimsLaptop>
> Content-Type: text/plain; charset="us-ascii"
>
>
>
> Ahh! My forgettery is not as bad as you or I thought. As I recall, This
> mystery tower I bought (the CanadianSpauldingRohn) that fit the 4 sections
> of Rohn 25 was purposely bowed/modified to fit by some other party. At
> 40yrs and counting...My forgettery is not reared its ugly head.
>
> 73's
>
> Jim N9WW
>
> James Chaggaris
> President
> PowerOne Corp.
> 1020 Cedar Avenue
> Suite 110
> St. Charles, IL 60174
> Phn: 630-443-6500
> Fax: 630-443-6505
> Cell: 630-669-2241
>
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of AA6DX - Mark
> Sent: Tuesday, March 21, 2006 5:00 PM
> To: TowerTalk
> Subject: [TowerTalk] Spaulding, from TT Archives ..
>
> Sorry Jim, but methinks your forgettery is getting like that of my own ...
>>From Tower Talk, 2/98 --
> ---------------------------------------------
> [TowerTalk] More history of Spaulding/Rohn AX/BX tower
> from [00tlzivney@bsuvc.bsu.edu] [Permanent Link][Original]
>
> To: <towertalk@contesting.com>
> Subject: [TowerTalk] More history of Spaulding/Rohn AX/BX tower
> From: 00tlzivney@bsuvc.bsu.edu (00tlzivney@bsuvc.bsu.edu)
> Date: Mon, 09 Feb 1998 12:52:36 -0500 (EST)
>
> My 1976 "Rohn Ham & CB Tower Catalog" includes many pages of data on
> the Spaulding towers (note this spelling is used consistantly throughout
> the catalog and even on the mechanical drawings dated 12-2-60.
>
> This vintage catalog includes the AX series sections, which were combined
> to make the HAX and HDX models. NOWHERE in these pages is any windloading
> spec given, nor is there any caution against long boom antennas.
>
> These towers had a variety of bases available: concrete stubs like the
> current
> BX towers, hollow cylindrical steel bases for burying in a round hole, and
> the screw anchor bases which consited of three outrigger arms fastened to
> the earth with earth augers.
>
> As always, inconsistencies can be found. For example, SHEET D-1132 dated
> December 1, 1975 says "Spaudling towers are not recommended for guyed or
> commercial installations." Three inches above that disclaimer is the
> statement
> that if using the sidemount for vertical antennas (still sold for use with
> the BX series) "recommend tower be guyed when using this mount." Since
> this mount is only 28-40" long, the lever arm is the same length, and
> obviously the ten foot boom has a five foot lever arm. So maybe there was
> some historical reason for the current warning!
>
> For those interested, the AX-8 base section was speced as 65 pounds for
> the
> 8 foot length. This was a reasonably beefy tower by CB standards!
>
>
> Terry Zivney, N4TZ/9
> 00tlzivney@bsuvc.bsu.edu
> ------------------
>
>
> 73 (just one) - AA6DX
>
> mailto: AA6DX@ARRL.NET
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> ------------------------------
>
> Message: 8
> Date: Wed, 22 Mar 2006 05:53:52 -0500
> From: "Al Zelna" <mr.mri@epix.net>
> Subject: [TowerTalk] Can you name me? Second pic.
> To: <towertalk@contesting.com>
> Message-ID:
> <!~!UENERkVCMDkAAQACAAAAAAAAAAAAAAAAABgAAAAAAAAA1FC9YyE7CUG5tprbsG9AP8KAAAAQAAAA8XivRrp+ZUWsS5kaOJgQkgEAAAAA@epix.net>
>
> Content-Type: text/plain; charset="us-ascii"
>
> Wow!
>
> Talk about a diverse bunch of answers. I sent Keith a second pic to show
> the top of the tower... with me hanging on the side. I hope this helps
> solidify the jury's deliberation.
>
> Thanks and 73,
>
> Al Zelna, N3KAE
>
>
>
>
> ------------------------------
>
> Message: 9
> Date: Tue, 21 Mar 2006 21:42:09 -0000
> From: "George Shaw" <mi3gto@digipeater.net>
> Subject: [TowerTalk] unknown tower
> To: <towertalk@contesting.com>
> Message-ID: <01ea01c64d30$55cff9a0$0200a8c0@ZEN>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Folks I have been offered an unknown tower for free.
>
>
>
> It is in 6 sections each 10ft long. It is triangle in section made from
> heavy metal tube on the outer frame with a lattice made from what looks
> like
> ? ? tube. The top section has a 65mm tube section for mounting a mast
> (60mm).
>
>
>
> What I would like to know is how to judge the specs for windload, guying
> (if
> needed?) max antenna size it could take etc. I don?t think that there is a
> manufacturer name or stamp on it though I have not had a close look. I
> guess
> it was bought in the UK ? Any ideas as to what specs it could have or how
> I
> could measure them appreciated.
>
>
>
>
>
>
>
> Bluebell Cottage
>
> 49 Cloughey Road
>
> Portaferry
>
> Co Down
>
> BT22 1NQ
>
> Northern Ireland
>
> UK
>
>
>
>
>
> ------------------------------
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> End of TowerTalk Digest, Vol 39, Issue 58
> *****************************************
>
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