[TowerTalk] Re: Masting TTVol 8, Issue 12
joegps
joegps at snet.net
Tue Aug 5 04:58:59 EDT 2003
Hi All,
If you can find one and one half in. galvanized waste
line 1 and 1/2 in.is 1 and 7/8 in.OD, at a local
plubmbeing shop,it comes in 21 FT.length.Remove
treaded couplings, and file cut ends and spray with
cold galvanize compound.
Joe K1NCO
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> Today's Topics:
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> 1. Re: mast recommendation (Gary Ingram)
> 2. Re: mast recommendation (Mike Rhodes)
> 3. Re: mast recommendation (Mike Rhodes)
> 4. Re: Mast Collars (George Taft)
> 5. Re: Mast Collars (Larry Emery)
> 6. Re: Feedline in Conduit (EUGENE SMAR)
> 7. Re: Feedline in Conduit (WA2BPE)
> 8. Re: Mast Collars (Jim White, K4OJ)
> 9. Re: mast recommendation (Jim White, K4OJ)
>
>
>
----------------------------------------------------------------------
>
> Date: Mon, 4 Aug 2003 17:56:57 -0700
> From: "Gary Ingram" <kb7fci at cdsnet.net>
> To: <Towertalk at contesting.com>, "wi8w"
> <rtty at comcast.net>
> Cc: Gary Ingram <kb7fci at cdsnet.net>
> Subject: Re: [TowerTalk] mast recommendation
> Message-ID:
> <007501c35aec$79425d80$10aba43f at DCCDD321>
> References:
> <IIEMLNOBHOHBMLHGGFPPKEBPCAAA.rtty at comcast.net>
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> charset="iso-8859-1"
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>
> Why don't you use aluminum tubing as most hams
> do. If your aluminum
> dealer does not carry it check on irrigation pipe
> from a farm supply dealer.
>
> 73,
> Gary Ingram
> Merlin, OR
> http://home.cdsnet.net/~kb7fci/
> All mail scanned by Norton 2003
> ----- Original Message -----
> From: "wi8w" <rtty at comcast.net>
> To: <Towertalk at contesting.com>
> Sent: Monday, August 04, 2003 4:49 PM
> Subject: [TowerTalk] mast recommendation
>
>
> > Living in Grand Rapids, MI with a population of
> somewhere near 1 million
> > people you would think that finding a length of
> pipe for a mast would be a
> > easy task...not so.
> >
> > I have spent the last week calling every steel
> dealer both in new and used
> > steel for a chunk of 2 inch OD 1/4 inch wall 4130
> pipe about 24 feet long.
> > Did I find anyone who could supply it?...nope.
> All said it was special
> > order and they could not guarantee 24 feet. best
> they could do is
> something
> > random betweek 17 and 24 feet Special order meant
> that not only did I
> have
> > to pay for the pipe (around $16 a foot) but I
> would have to pay the
> shipping
> > (about $300 for a 24 foot length). They all said
> that I could buy two
> > pieces (and pay the shipping) and weld them
> together to make the 24 feet.
> I
> > am not a big fan of nor do I know how to weld
> anything short of a resistor
> > to a circuit board.
> >
> > Anyone have any suggestions for a substitute at
> about a 24 foot length? I
> am
> > stacking the following:
> >
> > 2M/440 vertical
> > 19 element 440 beam
> > 20 element 2 meter twist antenna (10 vertical and
> 10 horizontal)
> > 5 elements on 6 meters
> > A4S tribander
> >
> > in that order top to bottom. Yep it is going to
> be tight and the first 10
> > feet of the mast will be inside the tower
> >
> > 2 inch OD seems to be the biggest I can go given
> the size of the thrust
> > bearing (TB-3) on the tower.
> >
> > thanks
> >
> > 73
> >
> > Thom WI8W
> >
> >
> >
> >
> > ---
> > Outgoing mail is certified Virus Free.
> > Checked by AVG anti-virus system
> (http://www.grisoft.com).
> > Version: 6.0.502 / Virus Database: 300 - Release
> Date: 7/18/2003
> >
> > _______________________________________________
> >
> > See: http://www.mscomputer.com for "Self
> Supporting Towers", "Wireless
> Weather Stations", and lot's more. Call Toll Free,
> 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk at contesting.com
> >
>
http://lists.contesting.com/mailman/listinfo/towertalk
> >
>
>
> ------------------------------
>
> Date: Mon, 4 Aug 2003 21:04:29 -0400
> From: "Mike Rhodes" <weightdn at adelphia.net>
> To: <Towertalk at contesting.com>
> Subject: Re: [TowerTalk] mast recommendation
> Message-ID:
> <002301c35aed$85f1c830$6501a8c0 at rhodes02>
> References:
> <IIEMLNOBHOHBMLHGGFPPKEBPCAAA.rtty at comcast.net>
> Content-Type: text/plain;
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>
> Thom,
> I would think that a piece of 1026 alloy (2in OD,
> 1.5in ID) should be
> adequate for your loads, less expensive, and
> off-the-shelf. You may still
> have a little trouble finding a 24 foot piece as
> most everyone will be
> dealing with random lengths but you may get lucky
> right off the bat. They
> will at least be able to tell you what they have
> available because it should
> not be special order.
> Then get some good rustproofing paint such as POR
> ( http://www.por15.com )
> or Zero-Rust ( http://www.zerorust.com ) and paint
> it up. I used POR and the
> mast got a little nicked up as I pulled it up thru
> the tower but not nearly
> as badly as the previous mast that I used spray-on
> galvanizing on. If I was
> doing it again I would probably give Zero-Rust a
> try, mainly because it
> looks to be about half the cost.
>
> Good luck and 73 de
> Mike / W8DN
>
> ----- Original Message -----
> From: "wi8w" <rtty at comcast.net>
> To: <Towertalk at contesting.com>
> Sent: Monday, August 04, 2003 7:49 PM
> Subject: [TowerTalk] mast recommendation
>
>
> > Living in Grand Rapids, MI with a population of
> somewhere near 1 million
> > people you would think that finding a length of
> pipe for a mast would be a
> > easy task...not so.
> >
> > I have spent the last week calling every steel
> dealer both in new and used
> > steel for a chunk of 2 inch OD 1/4 inch wall 4130
> pipe about 24 feet long.
> > Did I find anyone who could supply it?...nope.
> All said it was special
> > order and they could not guarantee 24 feet. best
> they could do is
> something
> > random betweek 17 and 24 feet Special order meant
> that not only did I
> have
> > to pay for the pipe (around $16 a foot) but I
> would have to pay the
> shipping
> > (about $300 for a 24 foot length). They all said
> that I could buy two
> > pieces (and pay the shipping) and weld them
> together to make the 24 feet.
> I
> > am not a big fan of nor do I know how to weld
> anything short of a resistor
> > to a circuit board.
> >
> > Anyone have any suggestions for a substitute at
> about a 24 foot length? I
> am
> > stacking the following:
> >
> > 2M/440 vertical
> > 19 element 440 beam
> > 20 element 2 meter twist antenna (10 vertical and
> 10 horizontal)
> > 5 elements on 6 meters
> > A4S tribander
> >
> > in that order top to bottom. Yep it is going to
> be tight and the first 10
> > feet of the mast will be inside the tower
> >
> > 2 inch OD seems to be the biggest I can go given
> the size of the thrust
> > bearing (TB-3) on the tower.
> >
> > thanks
> >
> > 73
> >
> > Thom WI8W
> >
> >
> >
> >
> > ---
> > Outgoing mail is certified Virus Free.
> > Checked by AVG anti-virus system
> (http://www.grisoft.com).
> > Version: 6.0.502 / Virus Database: 300 - Release
> Date: 7/18/2003
> >
> > _______________________________________________
> >
> > See: http://www.mscomputer.com for "Self
> Supporting Towers", "Wireless
> Weather Stations", and lot's more. Call Toll Free,
> 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk at contesting.com
> >
>
http://lists.contesting.com/mailman/listinfo/towertalk
> >
>
>
> ------------------------------
>
> Date: Mon, 4 Aug 2003 21:11:31 -0400
> From: "Mike Rhodes" <weightdn at adelphia.net>
> To: <Towertalk at contesting.com>
> Subject: Re: [TowerTalk] mast recommendation
> Message-ID:
> <002d01c35aee$812e7e50$6501a8c0 at rhodes02>
> References:
> <IIEMLNOBHOHBMLHGGFPPKEBPCAAA.rtty at comcast.net>
> <007501c35aec$79425d80$10aba43f at DCCDD321>
> Content-Type: text/plain;
> charset="iso-8859-1"
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> Message: 3
>
> By the time the aluminum wall is thick enough to
> give the equivalent
> strength of something like 1026 steel, you have lost
> the weight benefit of
> aluminum. As for irrigation pipe, referring to the
> LXC prime directive and
> its corollaries, pipe is for holding liquids and has
> a pressure rating, not
> a load rating. Steel (and aluminum) tubing has a
> load rating.
>
> Mike / W8DN
>
> ----- Original Message -----
> From: "Gary Ingram" <kb7fci at cdsnet.net>
> To: <Towertalk at contesting.com>; "wi8w"
> <rtty at comcast.net>
> Cc: "Gary Ingram" <kb7fci at cdsnet.net>
> Sent: Monday, August 04, 2003 8:56 PM
> Subject: Re: [TowerTalk] mast recommendation
>
>
> > Why don't you use aluminum tubing as most hams
> do. If your aluminum
> > dealer does not carry it check on irrigation pipe
> from a farm supply
> dealer.
> >
> > 73,
> > Gary Ingram
> > Merlin, OR
> > http://home.cdsnet.net/~kb7fci/
> > All mail scanned by Norton 2003
> > ----- Original Message -----
> > From: "wi8w" <rtty at comcast.net>
> > To: <Towertalk at contesting.com>
> > Sent: Monday, August 04, 2003 4:49 PM
> > Subject: [TowerTalk] mast recommendation
> >
> >
> > > Living in Grand Rapids, MI with a population of
> somewhere near 1 million
> > > people you would think that finding a length of
> pipe for a mast would be
> a
> > > easy task...not so.
> > >
> > > I have spent the last week calling every steel
> dealer both in new and
> used
> > > steel for a chunk of 2 inch OD 1/4 inch wall
> 4130 pipe about 24 feet
> long.
> > > Did I find anyone who could supply it?...nope.
> All said it was special
> > > order and they could not guarantee 24 feet.
> best they could do is
> > something
> > > random betweek 17 and 24 feet Special order
> meant that not only did I
> > have
> > > to pay for the pipe (around $16 a foot) but I
> would have to pay the
> > shipping
> > > (about $300 for a 24 foot length). They all
> said that I could buy two
> > > pieces (and pay the shipping) and weld them
> together to make the 24
> feet.
> > I
> > > am not a big fan of nor do I know how to weld
> anything short of a
> resistor
> > > to a circuit board.
> > >
> > > Anyone have any suggestions for a substitute at
> about a 24 foot length?
> I
> > am
> > > stacking the following:
> > >
> > > 2M/440 vertical
> > > 19 element 440 beam
> > > 20 element 2 meter twist antenna (10 vertical
> and 10 horizontal)
> > > 5 elements on 6 meters
> > > A4S tribander
> > >
> > > in that order top to bottom. Yep it is going to
> be tight and the first
> 10
> > > feet of the mast will be inside the tower
> > >
> > > 2 inch OD seems to be the biggest I can go given
> the size of the thrust
> > > bearing (TB-3) on the tower.
> > >
> > > thanks
> > >
> > > 73
> > >
> > > Thom WI8W
> > >
> > >
> > >
> > >
> > > ---
> > > Outgoing mail is certified Virus Free.
> > > Checked by AVG anti-virus system
> (http://www.grisoft.com).
> > > Version: 6.0.502 / Virus Database: 300 - Release
> Date: 7/18/2003
> > >
> > > _______________________________________________
> > >
> > > See: http://www.mscomputer.com for "Self
> Supporting Towers", "Wireless
> > Weather Stations", and lot's more. Call Toll
> Free, 1-800-333-9041 with
> any
> > questions and ask for Sherman, W2FLA.
> > >
> > > _______________________________________________
> > > TowerTalk mailing list
> > > TowerTalk at contesting.com
> > >
>
http://lists.contesting.com/mailman/listinfo/towertalk
> > >
> >
> >
> > _______________________________________________
> >
> > See: http://www.mscomputer.com for "Self
> Supporting Towers", "Wireless
> Weather Stations", and lot's more. Call Toll Free,
> 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk at contesting.com
> >
>
http://lists.contesting.com/mailman/listinfo/towertalk
> >
>
>
> ------------------------------
>
> Date: Mon, 04 Aug 2003 21:15:59 -0400
> From: George Taft <W8UVZ at voyager.net>
> To: Larry Emery <k1uo at prexar.com>
> Cc: towertalk <towertalk at contesting.com>
> Subject: Re: [TowerTalk] Mast Collars
> Message-ID: <3F2F054F.5F9AAA97 at voyager.net>
> References:
> <000701c35ad8$0ec98730$2626a78e at FAMILYROOM>
> Content-Type: text/plain; charset=us-ascii
> MIME-Version: 1.0
> Content-Transfer-Encoding: 7bit
> Precedence: list
> Reply-To: w8uvz at voyager.net
> Message: 4
>
> Hi Larry
>
> I bought mine at a shop that sells bearings,
> connectors, collars -
> industrial goods place.
>
> I have an extra rotor shelf in my 25G that helps
> keep the mast from
> tilting if one has to take the rotor out. I leave a
> split collar on the
> mast and simply loosen & slide it down on the spare
> rotor shelf when I
> have the mast hoisted for removing the rotor.
>
> These aren't expensive and they hold. My mast is 2
> 1/2" OD, is 21'
> long, and I can't lift it. I wouldn't trust hose
> clamps - maybe not
> even muffler clamps.
>
> Split collars work good.
>
> 73 George W8UVZ
>
> Larry Emery wrote:
> >
> > Somewhere...recently...I read about using a 'Split
> Collar' to help hold a mast
> > above the thrust bearing while extending the mast
> above the tower before
> > installing the rotor. Hope this makes sense?
> > Question here is where can one get those split
> collars?
> >
> > Thanks, Larry K1UO
> >
> > _______________________________________________
> >
> > See: http://www.mscomputer.com for "Self
> Supporting Towers", "Wireless Weather Stations", and
> lot's more. Call Toll Free, 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk at contesting.com
> >
>
http://lists.contesting.com/mailman/listinfo/towertalk
>
> ------------------------------
>
> Date: Mon, 4 Aug 2003 21:39:45 -0400
> From: "Larry Emery" <k1uo at prexar.com>
> To: "WA2BPE" <wa2bpe at infoblvd.net>, "EUGENE SMAR"
> <ersmar at comcast.net>
> Cc: Towertalk at contesting.com
> Cc: W0UN -- John Brosnahan <shr at medinaec.com>
> Subject: Re: [TowerTalk] Mast Collars
> Message-ID:
> <002801c35af2$74cf1620$8a25a78e at FAMILYROOM>
> References:
>
>
<5.2.1.1.2.20030804175203.022606b0 at mail.medinaec.com><006101c35ae6$80051320$0200a8c0 at nrockv01.md.comcast.net>
> <3F2EFF92.D27E2396 at infoblvd.net>
> Content-Type: text/plain;
> charset="iso-8859-1"
> MIME-Version: 1.0
> Content-Transfer-Encoding: 7bit
> Precedence: list
> Message: 5
>
> Hi Guys,
>
> Found exactly what I was looking for in Marlborough,
> MA. For those interested
> here is URL.
> http://www.ruland.com/eng_colr.html
>
> The SP-32 series is for a 2in dia mast (2" bore)
> and is $15.93 for steel split
> collar , $18.43 for zinc plated steel or $21.72 for
> the aluminum split collar.
>
> Thanks all for the good ideas also.
> Larry K1UO
>
>
>
>
> ------------------------------
>
> Date: Mon, 4 Aug 2003 21:55:48 -0400
> From: "EUGENE SMAR" <ersmar at comcast.net>
> To: "Jerry Keller" <k3bz at arrl.net>,
> "\(Reflector\) TowerTalk"
> <towertalk at contesting.com>
> Subject: Re: [TowerTalk] Feedline in Conduit
> Message-ID:
>
<000d01c35af4$b3332760$0200a8c0 at nrockv01.md.comcast.net>
> References:
> <001501c35aea$b7436400$1902a8c0 at MainDeskTop>
> Content-Type: text/plain;
> charset="iso-8859-1"
> MIME-Version: 1.0
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> Precedence: list
> Message: 6
>
> Jerry:
>
> I would use solid conduit, with drain holes
> drilled in the underside of
> the plastic at the low points in the run. I would
> cover these holes with
> flower bed screening material (allows the water to
> drain out but not in),
> and fix the material in place with three or four
> pieces of insulated solid
> wire wrapped around the conduit.
>
> I would dig a small pit underneath the drain
> holes and fill the pit
> with gravel to act as a drain field for any
> collected water. I incorporated
> each of the above items in my tower's conduit design
> and the cables all seem
> to be ok after two years underground.
>
> The average ham, I would bet, cannot seal
> conduits sufficiently
> watertight to preclude the accumulation of some
> amount of water. Therefore,
> we have to deal with this reality and provide a
> means of eliminating the
> water.
>
> 73 de
> Gene Smar AD3F
>
> ----- Original Message -----
> From: "Jerry Keller" <k3bz at arrl.net>
> To: "(Reflector) TowerTalk"
> <towertalk at contesting.com>
> Sent: Monday, August 04, 2003 8:44 PM
> Subject: [TowerTalk] Feedline in Conduit
>
>
> > I'm getting ready to bury about 60 feet of PVC
> pipe in the backyard to run
> > my feedlines in. What's the best way?
> > (1) PVC with drain holes in the bottom (a) laid on
> gravel bed (b) no
> gravel
> > bed needed
> > (2) PVC with no drain holes... (a) sealed at both
> ends to keep out water
> > (b) terminated with an "upside-down J" arrangement
> to keep out water
> >
> > or something else entirely? Advice appreciated,
> Jerry K3BZ
> >
> > _______________________________________________
> >
> > See: http://www.mscomputer.com for "Self
> Supporting Towers", "Wireless
> Weather Stations", and lot's more. Call Toll Free,
> 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk at contesting.com
> >
>
http://lists.contesting.com/mailman/listinfo/towertalk
>
> ------------------------------
>
> Date: Mon, 04 Aug 2003 22:31:46 -0400
> From: WA2BPE <wa2bpe at infoblvd.net>
> To: EUGENE SMAR <ersmar at comcast.net>
> Cc: "\(Reflector\) TowerTalk"
> <towertalk at contesting.com>
> Cc: Jerry Keller <k3bz at arrl.net>
> Subject: Re: [TowerTalk] Feedline in Conduit
> Message-ID: <3F2F1712.190BFFDD at infoblvd.net>
> References:
> <001501c35aea$b7436400$1902a8c0 at MainDeskTop>
>
>
<000d01c35af4$b3332760$0200a8c0 at nrockv01.md.comcast.net>
> Content-Type: text/plain; charset=us-ascii
> MIME-Version: 1.0
> Content-Transfer-Encoding: 7bit
> Precedence: list
> Message: 7
>
> Another good way to provide drainage yet prevent
> critters from taking up residence is to install a
> PVC "street tee" (use a reduction one if the main
> conduit is large, e.g., 4" to 2") to
> drain into the gravel. To keep things out, stuff
> the drain side with stainless steel wool - even bugs
> don't like to crawl thru that stuff!
>
> 73, Tom - WA2BPE
>
> EUGENE SMAR wrote:
>
> > Jerry:
> >
> > I would use solid conduit, with drain holes
> drilled in the underside of
> > the plastic at the low points in the run. I would
> cover these holes with
> > flower bed screening material (allows the water to
> drain out but not in),
> > and fix the material in place with three or four
> pieces of insulated solid
> > wire wrapped around the conduit.
> >
> > I would dig a small pit underneath the drain
> holes and fill the pit
> > with gravel to act as a drain field for any
> collected water. I incorporated
> > each of the above items in my tower's conduit
> design and the cables all seem
> > to be ok after two years underground.
> >
> > The average ham, I would bet, cannot seal
> conduits sufficiently
> > watertight to preclude the accumulation of some
> amount of water. Therefore,
> > we have to deal with this reality and provide a
> means of eliminating the
> > water.
> >
> > 73 de
> > Gene Smar AD3F
> >
> > ----- Original Message -----
> > From: "Jerry Keller" <k3bz at arrl.net>
> > To: "(Reflector) TowerTalk"
> <towertalk at contesting.com>
> > Sent: Monday, August 04, 2003 8:44 PM
> > Subject: [TowerTalk] Feedline in Conduit
> >
> > > I'm getting ready to bury about 60 feet of PVC
> pipe in the backyard to run
> > > my feedlines in. What's the best way?
> > > (1) PVC with drain holes in the bottom (a) laid
> on gravel bed (b) no
> > gravel
> > > bed needed
> > > (2) PVC with no drain holes... (a) sealed at
> both ends to keep out water
> > > (b) terminated with an "upside-down J"
> arrangement to keep out water
> > >
> > > or something else entirely? Advice appreciated,
> Jerry K3BZ
> > >
> > > _______________________________________________
> > >
> > > See: http://www.mscomputer.com for "Self
> Supporting Towers", "Wireless
> > Weather Stations", and lot's more. Call Toll
> Free, 1-800-333-9041 with any
> > questions and ask for Sherman, W2FLA.
> > >
> > > _______________________________________________
> > > TowerTalk mailing list
> > > TowerTalk at contesting.com
> > >
>
http://lists.contesting.com/mailman/listinfo/towertalk
> >
> > _______________________________________________
> >
> > See: http://www.mscomputer.com for "Self
> Supporting Towers", "Wireless Weather Stations", and
> lot's more. Call Toll Free, 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk at contesting.com
> >
>
http://lists.contesting.com/mailman/listinfo/towertalk
>
> ------------------------------
>
> Date: Mon, 04 Aug 2003 22:44:44 -0400
> From: "Jim White, K4OJ" <k4oj at tampabay.rr.com>
> To: Larry Emery <k1uo at prexar.com>
> Cc: Towertalk at contesting.com
> Subject: Re: [TowerTalk] Mast Collars
> Message-ID: <3F2F1A1C.8080306 at tampabay.rr.com>
> References:
> <000701c35ad8$0ec98730$2626a78e at FAMILYROOM>
> Content-Type: text/plain; charset=us-ascii;
> format=flowed
> MIME-Version: 1.0
> Content-Transfer-Encoding: 7bit
> Precedence: list
> Reply-To: k4oj at tampabay.rr.com
> Message: 8
>
> Some of the locals use a u-bolt with a saddle... I
> prefer to use a
> Hygain toothed boom to mast mount.
>
> K4OJ
>
>
>
>
> Larry Emery wrote:
> > Somewhere...recently...I read about using a 'Split
> Collar' to help hold a mast
> > above the thrust bearing while extending the mast
> above the tower before
> > installing the rotor. Hope this makes sense?
> > Question here is where can one get those split
> collars?
> >
> > Thanks, Larry K1UO
> >
> >
> > _______________________________________________
> >
> > See: http://www.mscomputer.com for "Self
> Supporting Towers", "Wireless Weather Stations", and
> lot's more. Call Toll Free, 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk at contesting.com
> >
>
http://lists.contesting.com/mailman/listinfo/towertalk
> >
>
>
>
> ------------------------------
>
> Date: Mon, 04 Aug 2003 23:05:38 -0400
> From: "Jim White, K4OJ" <k4oj at tampabay.rr.com>
> To: Bob Johnson <rjohnson at tmlp.com>
> Cc: Towertalk at contesting.com
> Cc: wi8w <rtty at comcast.net>
> Subject: Re: [TowerTalk] mast recommendation
> Message-ID: <3F2F1F02.701 at tampabay.rr.com>
> References: <200308042036911.SM02460 at rjohnson>
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> Reply-To: k4oj at tampabay.rr.com
> Message: 9
>
> my local supplier of Chrome molly has a similar line
> about length and so
> did the supplier I used to use in PA
>
> My suggestion is to contact a guy wo runs a shop
> that sells to guys
> building racing cars... stock cars... that roll cage
> that the cosmetic
> "body" goes over is Chrome Molly tubing...
>
> This guy will make routine purchases of this stuff
> and you can tell him
> what you need and ask him if he could include am XX
> foot length in his
> next order from that supplier...
>
> My approach...
>
> Jim, K4OJ
>
>
>
>
> Bob Johnson wrote:
> > Maybe you are asking for a little too much !!!
> >
> > I seem to remember that 21 Feet was a "Standard
> Length" for
> > pipe and tubing !!!
> >
> > Try calling a supplier and asking " What is the
> Standard Length"
> > for 2 inch OD 1/4 inch wall 4130 pipe or tubing.
> >
> > Might be a few feet shorter, but many $$$ cheaper
> !!!
> >
> > 73
> > Bob, K1VU
> > FN42ma
> >
> > At 07:49 PM 08/04/03 , wi8w wrote:
> >
> >>Living in Grand Rapids, MI with a population of
> somewhere near 1 million
> >>people you would think that finding a length of
> pipe for a mast would be a
> >>easy task...not so.
> >>
> >>I have spent the last week calling every steel
> dealer both in new and used
> >>steel for a chunk of 2 inch OD 1/4 inch wall 4130
> pipe about 24 feet long.
> >>Did I find anyone who could supply it?...nope.
> All said it was special
> >>order and they could not guarantee 24 feet. best
> they could do is something
> >>random betweek 17 and 24 feet Special order meant
> that not only did I have
> >>to pay for the pipe (around $16 a foot) but I
> would have to pay the shipping
> >>(about $300 for a 24 foot length). They all said
> that I could buy two
> >>pieces (and pay the shipping) and weld them
> together to make the 24 feet. I
> >>am not a big fan of nor do I know how to weld
> anything short of a resistor
> >>to a circuit board.
> >>
> >>Anyone have any suggestions for a substitute at
> about a 24 foot length? I am
> >>stacking the following:
> >>
> >>2M/440 vertical
> >>19 element 440 beam
> >>20 element 2 meter twist antenna (10 vertical and
> 10 horizontal)
> >>5 elements on 6 meters
> >>A4S tribander
> >>
> >>in that order top to bottom. Yep it is going to
> be tight and the first 10
> >>feet of the mast will be inside the tower
> >>
> >>2 inch OD seems to be the biggest I can go given
> the size of the thrust
> >>bearing (TB-3) on the tower.
> >>
> >>thanks
> >>
> >>73
> >>
> >>Thom WI8W
> >>
> >>
> >>
> >>
> >>---
> >>Outgoing mail is certified Virus Free.
> >>Checked by AVG anti-virus system
> >
> > (<http://www.grisoft.com/>http://www.grisoft.com).
> >
> >>Version: 6.0.502 / Virus Database: 300 - Release
> Date: 7/18/2003
> >>
> >>_______________________________________________
> >>
> >>See:
>
<http://www.mscomputer.com/>http://www.mscomputer.com
> for "Self
> >
> > Supporting Towers", "Wireless Weather Stations",
> and lot's more. Call Toll
> > Free, 1-800-333-9041 with any questions and ask
> for Sherman, W2FLA.
> >
> >>_______________________________________________
> >>TowerTalk mailing list
> >>TowerTalk at contesting.com
>
>><http://lists.contesting.com/mailman/listinfo/towertalk>http://lists.conte
> >
> > sting.com/mailman/listinfo/towertalk
> >
> >
> > _______________________________________________
> >
> > See: http://www.mscomputer.com for "Self
> Supporting Towers", "Wireless Weather Stations", and
> lot's more. Call Toll Free, 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk at contesting.com
> >
>
http://lists.contesting.com/mailman/listinfo/towertalk
> >
>
>
>
> ------------------------------
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
>
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>
>
> End of TowerTalk Digest, Vol 8, Issue 12
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