[TowerTalk] Mast size

[Mike]

It was used Pete. I got a 50' freebie for taking it down, 25 years ago. 
My guru was all about cheap(hi).
It had some kind of vertical welded to the top. Guess I'm gonna have to 
hunt up a different top section.

One suggestion I got was to cut the angled pieces off, and install a 
thrust bearing.

Mike

Pete Smith wrote:
> Ah I see - I have a 25AG3, which has 2 1/4" OD and a 14 gauge wall.  A 
> 2" Rohn mast fits easily inside it.  If you really have a 25AG (no 
> suffix) then our catalogs agree.  Did you get it new?  I remember that 
> my tower guru specified the 25AG3 in part because of the beefier and 
> bigger top tube.
>
> 73, Pete
>
> On 7/16/2009 6:31 PM, Mike wrote:
>   
>> Nah. I don't climb.
>> IF the section is 25AG, the catalog says 2" OD with 16 ga. walls. 16
>> ga. is .0598" x 2 = .1196. 2-.1196 = 1.8804. The galvanizing takes up
>> a couple of atoms thickness.
>>
>> Doesn't leave much.
>>
>> Mike
>>
>> Pete Smith wrote:
>>     
>>> My catalog is ancient - mid 90s.  So you've measured the tube?
>>>
>>> Pete
>>>
>>> On 7/16/2009 4:11 PM, Mike wrote:
>>>       
>>>> Hey Pete -
>>>> True, but I don't think it's either of those. The tube doesn't
>>>> extend down as far as the AG2, and the AG3 has the extra brace about
>>>> 1/3 of the way up the slanty part.
>>>> Page 29 in my catalog(2004 revised). Where'd you see the part about
>>>> the 2" mast?
>>>>
>>>> 73. Mike NF4L
>>>>
>>>> Pete Smith wrote:
>>>>         
>>>>> From my Rohn catalog, both the 25AG2 and 25AG3 have 2 1/4" OD
>>>>> tubes.  The catalog says a 2" OD tube will fit snugly.
>>>>>
>>>>> 73, Pete
>>>>>
>>>>> On 7/16/2009 1:14 PM, Mike wrote:
>>>>>           
>>>>>> Would somebody look at the pic at http://nf4l.com/top.htm and verify
>>>>>> that's a 25AG section?
>>>>>>
>>>>>> I'm needing to replace the water pipe mast with something stronger
>>>>>> because I want to put a 6M yagi over the SteppIR.
>>>>>>
>>>>>> I work out the ID of the tube on the 25AG to be 1.88" (not accounting
>>>>>> for the galvanizing). Seems like the OD of the steel tubing I see
>>>>>> advertised is 1.9"
>>>>>>
>>>>>> What can I use, and where can I get it? I need 12-15 total length'
>>>>>>
>>>>>> 73, Mike NF4L
>>>>>> _______________________________________________
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
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>>>>>> TowerTalk at contesting.com
>>>>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>>>>
>>>>>>             
>>>>         
>>     
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