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Re: Calculation of Q (Oops)




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Hi all,
       I'd better correct this one before I get jumped on :(  
Yesterday I wrote....

<snip>
>      Some time ago I measured a range of coils with H/D's ranging 
> from 5 to about 0.5, both close wound and spacewound. I scored the 
> highest Q (around 500 taking generator impedance into account) in a 
> space-wound coil of H/D=1. However, its Q dropped dramatically with 
> the addition of a terminal - clearly useless for TC work.
<snip>

I said that tongue-in-cheek. There should have been a ";)" after "TC 
work."
     From memory the Q dropped to about 300+ with a small terminal 
and more so with a large one but as Tesla showed, it worked just fine.

Malcolm

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