[TowerTalk] Copper wire prices

[Pat Barthelow]

>From: "Rick Karlquist" <richard at karlquist.com>
(SNIP)
>They do make insulated aluminum wire for speaker voice coils.
>I have been trying to find a vendor for that.  It would solve
>the corrosion problem.
>
>Rick N6RK

Waldom, who also makes various small electronic hardware, (screws, 
terminals,etc) was the vendor for speaker parts for Speaker reconing shops.  
I used to have a shop.  The Waldom speaker replacement parts Warehouse was 
somewhere in New York.

The trick wire of the time was "ribbon wire" which made for very efficient, 
sensitive speakers.  They took the round  voice coil wire, say about 26 
guage,  and milled flats on top  and bottom making an almost thin 
rectangular cross section wire  of maybe 1:5 dimension ratio.  Stacked on a 
cylindrical speaker coil, the ribbon wire left no voids that the round wire 
left, and made for much more efficient speakers.  JBL and Altec Lansing 
Sound Reinforcement speakers also have ribbon wire....
Try finding Waldom Speaker components for aluminum speaker voice coil 
wire...
73,
Pat  AA6EG  aa6eg at hotmail.com