[AMRadio] Tubing

Larry Will lhwill at verizon.net
Tue Jul 10 09:03:37 EDT 2007


RF connections are never made of ferrous material (steel).  The 
tubing normally is either nickle or silver plated brass or 
copper.  Check it with your magnet.  The companies that make 
broadcast station ATU's have it and maybe you could bum a small 
quantity.  Kintronics and Phasetek.  The ends are normally flattened 
and drilled to accept plated brass hardware although I have seen 
terminals silver soldered to it.



At 09:51 PM 7/9/2007, you wrote:
>I need to make a couple of RF connections using 1/4" O.D. tubing.  The stuff
>that is already in the transmitter appears to be soft steel of some kind.
>It's not aluminum and could possibly be coated copper.  Any ideas of what
>this is?  I checked McMaster-Carr and they have some annealed steel aircraft
>tubing that appears to be similar, but I'm not sure.  I only need a couple
>of feet, so I hate to buy $30.00 to get it.
>Thanks for any help or advice...
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