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Re: Current Limiting and Impedence

Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>

There's several (had a catalog somewhere...) that sell standard and custon E, I, and oddball shaped laminations of varying thickness/guage (thinner=higher freq, 400 hz is almost foil). This is the best solution, tho definitely not the cheapest. I'm sure a google search would turn up something.

Mike
----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Thursday, May 12, 2005 12:27 PM
Subject: Re: Current Limiting and Impedence


Original poster: "Gerald  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>

Hi Malcolm,

Where can you get Silicon steel?? Do they make welding rods out of this stuff or is there another alloy that would work?? and what diameter rod should we be looking for??

Gerry R.


Original poster: "Malcolm Watts" <m.j.watts@xxxxxxxxxxxx>

Hi Paul,
          Whatever rods you purchase for the core, they have to have
a very small x-sectional area. They should also not retain much if
any magnetism after being de-energized (check with a magnet) or they
will have large hysteresis losses resulting in lots of heating.
Silicon steel such as used in transformer cores is preferred if you
can get them.

Malcolm