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EFD Ferrite Core shape , What for?

ronsimpson

Well-Known Member
Most Helpful Member
#2
Most of the core is "shielded" to keep the flux inside, and to keep out side from getting in. Something like a pot core. One side is open so the bobbin and wires come out.

I have broke many pot cores bobbins because the opening in the core is too small making the bobbin very weak.
 

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