Lot of 35 AMIDON IRON POWDER TOROID RINGCORES CORES, Inductor

NOT FERRITE

BRAND NEW AS SHOWN

ln general, toroidal cores are the most efficient of any core configuration. They are highly self shielding since most of the flux lines are contained within the core. The flux lines are essentially uniform over the entire length of the magnetic path and consequently stray magnetic fields will have very little effect on a toroidal inductor. lt is seldom necessary to shield a toroidal inductor.

Please study the photos. WYSIWYG (What you see is what you get). BRAND NEW AS SHOWN