A NorCal Project ... Java Toroid Design Applet by Jack Ponton, GM0RWU

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This applet designs a toroid coil. Handbook data for the most usual sizes and material combinations have been included. Less common combinations estimate A_L from permeability. Some materials are not available in larger core sizes.

Enter the required inductance in the green box; you must press "enter" at the end of the number. Then select size and material.

 
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These pages are designed and maintained by George Heron, N2APB
Page last updated:  July 9, 2003