[AMPS] Re: Tank coils
Joseph Rodgers
jarodger@airmail.net
Sun, 23 Jan 2000 05:38:15 -0000
-----Original Message-----
From: Joseph Rodgers [mailto:jarodger@airmail.net]
Sent: Sunday, January 23, 2000 05:15
To: 'Jim'
Subject: RE: [AMPS] Re: Tank coils
There are two types of copper tubing commonly available at the hardware
store. There is a soft flexible kind often used in 1/4 and 3/8 diameters for
water lines to ice makers, bar sinks, etc. Then there is the more rigid
copper tubing that is not so soft and not so easy to bend around a round
form. This stuff is more like rolled up copper pipe. This is the stuff that
a conduit bender, or spring type tubing bender is used on to keep it from
collapsing at the bend.
I hope this helps. From the responses below I got the impression that there
might be a misunderstanding between the two. The soft flexible tubing is
easy to roll into inductor coils.
Joe N5WY
-----Original Message-----
From: owner-amps@contesting.com [mailto:owner-amps@contesting.com]On
Behalf Of Jim
Sent: Sunday, January 23, 2000 03:51
To: Terry Gaiser - W6RU; Fisher; Gerald Caouette; Amps Reflector
Subject: Re: [AMPS] Re: Tank coils
Sure! After they are wound then add what ever you want.....Silver plating,
taps.....
Thanks Terry....
Jim W7RY
-----Original Message-----
From: Terry Gaiser - W6RU <w6ru@lightspeed.net>
To: Jim <jdc@ieway.com>; Fisher <fisher@pldi.net>; Gerald Caouette
<ve6nap@oanet.com>; Amps Reflector <amps@contesting.com>
Date: Saturday, January 22, 2000 2:11 AM
Subject: Re: [AMPS] Re: Tank coils
>
>I echo and support Jim's comments below .... exactly the way I wind my
coils
>!
>I do silver plate some of mine also.
>Terry W6RU
>
>----- Original Message -----
>From: Jim <jdc@ieway.com>
>To: Fisher <fisher@pldi.net>; Gerald Caouette <ve6nap@oanet.com>; Amps
>Reflector <amps@contesting.com>
>Sent: Saturday, January 22, 2000 8:32 AM
>Subject: Re: [AMPS] Re: Tank coils
>
>
>>
>> I simply wind my copper coils (1/4" and 3/16" and 3/8") on a round form
>of
>> some kind......a 2.5 inch piece of black abs pipe......a propane
>> cylinder........a round block of wood......... anything that is the
>desired
>> diameter......
>>
>> No need to stretch, heat or any other special treatment......I buy the 50
>> foot coils at Home depot, etc. Just leave the coil coiled up. DO NOT
>> un-wind the coil as you have purchased it. This "work hardens" the
copper.
>> Have someone help you.....Just wind on the form.....nice and
>smooth.....Then
>> use your fingers to space and form just exactly the way you need it after
>> the winding is completed......
>>
>> Common guys! This not rocket science !
>>
>>
>> Jim W7RY
>>
>>
>>
>> -----Original Message-----
>> From: Fisher <fisher@pldi.net>
>> To: Gerald Caouette <ve6nap@oanet.com>; Amps Reflector
><amps@contesting.com>
>> Date: Tuesday, January 18, 2000 12:59 PM
>> Subject: Re: [AMPS] Re: Tank coils
>>
>>
>> >
>> >Hi All -
>> >
>> >Thanks for all replies.
>> >
>> >I got a small tubing bender just for the occasion and experimented with
>it
>> >without sand or trying to soften the tubing. I was surprised out how
>> >difficult it was to work with the stuff, and that is what prompted my
>> >question to the group.
>> >
>> >Can anyone expand a little bit on the actual winding process?
>> >
>> >Gerald VE6NAP, I happen to have a 3/4 HP wood lathe. How do you mean to
>> use
>> >a lathe to wind it?
>> >
>> >Thanks, Lu K5YP
>> >
>> >
>> >>I would try using a tubing bend and bend it in 90 degree segments. You
>can
>> >>get them at Lowe's or Home Depot.
>> >>Mike(y)
>> >>W3SLK
>> >
>> >> Copper is unlike ferrous metals that temper when cooled quickly
>> >> it goes soft _ water - cooling will allow it to become very workable
>> >> clean the surface prior to forming and have silver plated after
>> >> item has been formed
>> >> note to much heat and you then get into other problems such as
Hydrogen
>> >> Embritlement
>> >> if you dip in water or air cool
>> >>
>> >> I find it best to have a friend with a lathe do the forming with out
>> >> heating the tubing ...
>> >> as the tube will spring back somewhat the mandrill has to be a bit
>> >> undersize ....
>> >> 73
>> >> de
>> >> ve6nap@rac.ca
>> >
>> >
>> >
>> >--
>> >FAQ on WWW: http://www.contesting.com/ampsfaq.html
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>> >
>> >
>>
>>
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>
>
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