[TowerTalk] TowerTalk Digest, Vol 39, Issue 58

[TexasRF at aol.com]

After handling literally thousands of 20G and 25G tower sections I can  
positively state that 20G has seven horizontal and six diagonal braces per side,  
the legs are made of 18 ga. steel and weighs 32 pounds per section. 25G has  
eight horizontal and seven diagonal braces per side, the legs are made of 16 ga  
steel and weighs 40 pounds per section. The braces on 25G are slightly larger 
in  diameter than 20G but I would have to research the exact diameters.
 
The leg o.d. and spacing is the same for both models so they do fit into  
each other but this is not recommended by the manufacturer.
 
I hear models R20 and R25 mentioned from time to time but in the nearly 30  
years I have sold Rohn towers there have been no such model numbers. The 
correct  models are 20G and 25G.
 
73,
Gerald Williamson
Owner/General Manager,Texas Towers
web: _www.txastowers.com_ (http://www.txastowers.com)    orders/info: 1 800 
272 3467
 
 
 
In a message dated 3/22/2006 5:45:20 P.M. Central Standard Time,  
jperalta at tampabay.rr.com writes:

I  believe this is wrong R20 has only 6 Z braces while R25 has 7 also r20
is  made from 18 GA material while R25 is made from 16 GA material.

Julio,  W4HY

-----Original Message-----
From:  towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com]  On Behalf Of George Lee
Sent: Wednesday, March 22, 2006 1:11 PM
To:  towertalk at contesting.com
Subject: Re: [TowerTalk] TowerTalk Digest, Vol 39,  Issue 58


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 at contesting.com>
To:  <towertalk at contesting.com>
Sent: Wednesday, March 22, 2006 9:37  AM
Subject: TowerTalk Digest, Vol 39, Issue 58


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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 at 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 at shaw.ca>
> Subject: Re: [TowerTalk] Can you  ident me?
> To: towertalk at contesting.com
> Message-ID:  <7.0.0.16.2.20060321153409.02089468 at 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 at charter.net>
> Subject: Re: [TowerTalk] [BULK] -  Re:  Can you name me?
> To: "Steve Katz" <stevek at jmr.com>,  <jimc at pwrone.com>, 
> <towertalk at contesting.com>
>  Message-ID: <006001c64d45$0a8ca730$6400a8c0 at 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 at pwrone.com]
>> Sent: Tuesday, March 21, 2006 1:35  PM
>> To: towertalk at 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 at contesting.com 
>>  [mailto:towertalk-bounces at contesting.com] On Behalf Of Keith  Dutson
>> Sent: Tuesday, March 21, 2006 2:46 PM
>> To:  towertalk at 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 at contesting.com 
>>  [mailto:towertalk-bounces at contesting.com] On Behalf Of Al Zelna
>>  Sent: Tuesday, March 21, 2006 12:53 PM
>> To:  towertalk at 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 at contesting.com 
>>  http://lists.contesting.com/mailman/listinfo/towertalk
>>
>>
>>
>>  _______________________________________________
>>
>>
>>
>>  _______________________________________________
>> TowerTalk mailing  list
>> TowerTalk at contesting.com 
>>  http://lists.contesting.com/mailman/listinfo/towertalk
>>  _______________________________________________
>>
>>
>>
>>  _______________________________________________
>> TowerTalk mailing  list
>> TowerTalk at contesting.com 
>>  http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
>
>
>  ------------------------------
>
> Message: 3
> Date: Tue,  21 Mar 2006 17:12:00 -0700
> From: Steve Robinson  <wu9b at desertinet.com>
> Subject: [TowerTalk] US Tower Corp
>  To: <towertalk at contesting.com>
> Message-ID:  <C045E460.D488%wu9b at 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 at thechief.com>
> Subject: Re: [TowerTalk] Tubular  Tower
> To: <towertalk at contesting.com>
> Message-ID:  <20060322002032.4FDBB3192CF at dayton.akorn.net>
> Content-Type:  text/plain; charset="us-ascii"
>
> Message: 1
> Date: Sun,  19 Mar 2006 11:29:21 EST
> From: NPAlex at aol.com
> Subject:  [TowerTalk] Build your own Square Needle
> To: towertalk at contesting.com,  mjweaver at fmtcs.com
> Message-ID:  <2c8.5ab92a2.314ee0e1 at 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 at 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 at aol.com
> Subject: Re:  [TowerTalk] Identifiy me
> To: towertalk at contesting.com
>  Message-ID: <1bb.31a6ac.31521065 at 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 at eoni.com>
> Subject: Re: [TowerTalk] Identifiy me
>  To: <Larrz3 at aol.com>, <towertalk at contesting.com>
>  Message-ID: <005a01c64d5f$2008fe50$75cde4d8 at 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 at aol.com>
> To:  <towertalk at 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 at contesting.com 
>>  http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
>
>
>
>  ------------------------------
>
> Message: 7
> Date: Tue,  21 Mar 2006 21:33:12 -0600
> From: "Jim Chaggaris"  <jimc at pwrone.com>
> Subject: Re: [TowerTalk] Spaulding, from TT  Archives ..
> To: "'TowerTalk'" <TOWERTALK at contesting.com>
>  Message-ID: <000301c64d61$598d8090$6400a8c0 at 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 at contesting.com 
>  [mailto:towertalk-bounces at 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 at bsuvc.bsu.edu] [Permanent Link][Original]
>
>   To:  <towertalk at contesting.com>
>     Subject:  [TowerTalk] More history of Spaulding/Rohn AX/BX  tower
>      From:  00tlzivney at bsuvc.bsu.edu  (00tlzivney at 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 at bsuvc.bsu.edu
> ------------------
>
>
>  73   (just one)    -  AA6DX
>
> mailto:  AA6DX at ARRL.NET  _______________________________________________
>
>
>
>  _______________________________________________
> TowerTalk mailing  list
> TowerTalk at 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 at epix.net>
> Subject: [TowerTalk] Can you name me?   Second pic.
> To: <towertalk at contesting.com>
>  Message-ID:
>
<!~!UENERkVCMDkAAQACAAAAAAAAAAAAAAAAABgAAAAAAAAA1FC9YyE7CUG5tprbsG9AP8KA
AAAQAAAA8XivRrp+ZUWsS5kaOJgQkgEAAAAA at 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 at digipeater.net>
> Subject: [TowerTalk] unknown  tower
> To: <towertalk at contesting.com>
> Message-ID:  <01ea01c64d30$55cff9a0$0200a8c0 at 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 at contesting.com
>  http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>  End of TowerTalk Digest, Vol 39, Issue 58
>  *****************************************
>  

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