[SEL] Cores for coils

[Elden DuRand]

Ron:

Go to your friendly auto parts store and get a roll of iron "mechanic's wire".  It is around 14-16 gauge and when straigtened, cut to length and bundled, makes an excellent core.

Although coat hanger wire will work, it would make a rather bulky core and I think it is a bit on the hard side and will retain some magnetism, making it a little less efficient.  I suppose you could anneal it and it would work better.

Take care - Elden

> -----Original Message-----
> From: sel-bounces at lists.stationary-engine.com
> [mailto:sel-bounces at lists.stationary-engine.com]On
>  Behalf Of
> rdhaskell at juno.com
> Sent: Thursday, July 17, 2008 11:24 AM
> To: sel at lists.stationary-engine.com; 
> stationary-engine at oldengine.org
> Subject: [SEL] Cores for coils
> 
> 
> Hi all.
> I am going to wind some low tension coils.  In 
> the past I used gas
> welding rod for the core.  What materials have 
> you used?  Coat hanger
> wire comes to mind.  Thanks.
> 
> Ron Haskell
> rdhaskell at juno.com
> Riverside, California USA
> http://picasaweb.google.com/RonHaskell