Topband: Lazy question concerning toroidal inductors

2012-08-06 Thread Tod Olson
I am sure [or at least I hope] I could sort through the information available in books and on the web for the answer to this question, but maybe someone reading this reflector can give me an 'instant' answer [preferably correct]. I intend to use a powdered iron core toroid as the form for an

Re: Topband: Lazy question concerning toroidal inductors

2012-08-06 Thread Richard (Rick) Karlquist
Not enough information. How many turns? How much current through inductor? What core size? What material? Do you already have a particular core you want to design around? What Q do you need from the standpoint of antenna efficiency? Is Q only a thermal issue? As a VERY general rule, Q is