R61-50-300-FERRITE-ROD

$9.95

THE R61-50-FERRITE-ROD IS 3" LONG BY 0.5" IN DIAMETER. THE NUMBER OF TURNS FOR A GIVEN INDUCTANCE IS N= 1000*SQRT(L(in mH)/43).  FOR BEST COIL Q, THE WINDINGS SHOULD BE CENTERED ON THE ROD AND COVER A MAJORITY OF ITS LENGTH. FOR SOME CRYSTAL SET DESIGNS THE ROD TAKES THE PLACE OF THE ANTENNA.