 Goldmines new core...Is it good?
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Killa-X
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Mon May 24 2010, 05:07AM
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Registered Member #1643
Joined: Mon Aug 18 2008, 06:10PM
Location:
Posts: 1039
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I was looking around goldmine today and saw a new black core was posted in the "New May/June" section. I was wondering if anyone has tryed these, or was willing to seenthe limits on them before they saturate. Seeing most people liked the 5 pack, I figured maybe there's a chance they could be good. Or maybe they won't be. It's a 1.75" outer diameter core, seems useful if it can do Tesla coil duty, or any other CT / GDT use!
let me know what you think! Forgot...
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Sulaiman
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Registered Member #162
Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3141
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The black core is probably a Magnetics CoolMu core with relative permeability of 90,
the green/blue core is probably iron powder of relative permeability 75.
Both would be excellent for a marzilli/zvs/CFPR inverter,
the black core saturates at over 1T.
Neither core is ideal for a GDT as the low permeability would result in significant leakage inductance.
For GDT or CT high Mu ferrite is best.
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