[TCML] specs for the larger ferrites I'd offered on the list

[Quarkster]

Bill -

These cores are actually made from Molypermalloy powder 
(nickel-iron-molybdenum), not ferrite.

This material has very low permeability, and is used for specialized 
inductors. Not usable for gate drive transformers in solid-state Tesla 
coils, where high permeability ferrite cores are needed.

Regards,
Herr Zapp
----- Original Message ----- 
From: "Bill Noble" <william_b_noble at msn.com>
To: "Tesla Coil Mailing List" <tesla at pupman.com>
Sent: Sunday, September 13, 2009 5:26 PM
Subject: [TCML] specs for the larger ferrites I'd offered on the list


>I found the spec sheet for the torroids, here
> http://www.mag-inc.com/File%20Library/Product%20Datasheets/Powder%20Core/New%20Powder%20Cores/Toroids/930%20Size/C055930A2.pdf 
> It is from their MPP series, read about that series here 
> http://www.mag-inc.com/products/powder_cores/mpp They say: MPP cores 
> possess many outstanding magnetic characteristics, such as high 
> resistivity, low hysteresis and eddy current losses, excellent inductance 
> stability after high DC magnetization or under high DC bias conditions and 
> minimal inductance shift up to 2000 gauss under AC conditions. 
> Applications include Flyback Transformers, Buck/Boost and Power Factor 
> Correction (PFC), Inductors, In-Line Noise Filters, High Q Filters, and 
> Resonant Circuits.I have probably 100 of them (haven't counted), at 25 
> cents each - shippingdepends on quantity, but will never be more than $11
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