Try McMaster-Carr, I purchased some 1" OD cast iron round bars there last
year.

barry lotz wrote:

> Hi
>    Since it's been so quiet ....  It has been mentioned that iron makes
> a better material for sensor feedback coil transducers than steel. I
> have two questions which maybe someone can help. Do manufactured speaker
> coils have a better grade of material for use in feedback coils? I have
> looked around a little but can't seem to find a source of  iron plate or
> round stock. Any thoughts?
> Regards
> Barry
>
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--
Rex Klopfenstein, Jr.
Bowling Green, OH
rklopfen@.........
http://www.wcnet.org/~rklopfen


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