[NJARC] copper tube coil?

[John Dilks K2TQN]

Hi Steve,

#2 - The tool is called a piece of galvanized water pipe.  Fill the 
copper tubing with fine sand or salt or something like that. Crimp 
the ends and wind away.  Choose a pipe slightly smaller in diameter, 
as the turns will unwrap some.  Take out the sand after it's wrapped.

Early handbooks around 1925 to 1935 show how to do this.

73, John

At 12:48 PM 11/28/2005, you wrote:
>Visit our web site - See http://www.njarc.org
>_______________________________________________
>Hi all:
>
>I need two 1/4 inch copper tube coils:
>
>12 turns on 3 inch diameter
>23 turns on 3 inch diameter
>
>1.  might anyone have anything 'close?'...or
>2.  copper tubing coil making device ( yes, there is such a tool I'm told )
>
>Tnx,
>Steve Tetorka