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

[Bill Noble]

ok, you guys are the experts - what I do know is that these were used for 
EMI filters on super duper expensive stereo equipment (specifically, $16,000 
each monoblocks, I believe) - so my original thought was that they would be 
good for protective inductors for NST driven coils - I don't know what 
material the smaller ones are - there are no markings
----- Original Message ----- 
From: "Quarkster" <quarkster at att.net>
To: "Tesla Coil Mailing List" <tesla at pupman.com>
Sent: Monday, September 14, 2009 2:05 PM
Subject: Re: [TCML] specs for the larger ferrites I'd offered on the list


> 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
>> _______________________________________________
>> Tesla mailing list
>> Tesla at www.pupman.com
>> http://www.pupman.com/mailman/listinfo/tesla
>
> _______________________________________________
> Tesla mailing list
> Tesla at www.pupman.com
> http://www.pupman.com/mailman/listinfo/tesla
>