IRON POWDER TOROIDAL CORES
(For Resonant Circuits)
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MATERIAL 7 -- Permeability 9, Freq. Range 3 MHz to 35 MHz, Color - White
Core Number O.D.
(inches) 		I.D.
(inches) 		Hgt
(inches) 		le
(cm) 		Ae
(cm)2 		Ve
(cm)3 		AL Value
µh/100 Turns
T25-7 .255 .120 .096 1.50 .042 .063 29
T37-7 .375 .205 .128 2.32 .070 .162 32
T50-7 .500 .303 .190 3.03 .121 .367 43
T68-7 .690 .370 .190 4.24 .196 .831 52

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