Simple questions on receivers

July 18th 05, 10:18 PM

dave.harper

Posts: n/a

-ex- wrote:

I've had good success with ferrite toroids approaching Q=400, although
ferrites are by nature very unpredictable Q-wise.

Is this the reason a lot of coils are air coils? Easy of calculations?
I assume you can get higher performance from ferrite coils than
air-core coils, right?

Thanks again!
Dave

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