| >In a series circuit, Q = X/R, 
Correct.  Just looked it up in "Solid State Radio Engineering" by Krause, 
Bostinian and Raab. 
For a series circuit: Q=X/R
Q is defined as: 
(2*pi*maximum instantaneous energy stored in the circuit)/energy 
dissipated per cycle
This is the general definition for Q of any circuit at resonance.(pg 41)
>while in parallel, Q = R/X.
Correct again.
Pages 78 and 79 of the book have all the useful formulas for 
parallel-series conversions for RL and RC networks:
Xp=wLp (w=greek omega, not our w)
Qp=Rp/Xp
Xs=wLs
Qs=Xs/Rs
That says it.  Peter is correct.
73,
Jon
KE9NA
--------------------------------------------------------------------------
Jon Ogden
jono@webspun.com
www.qsl.net/ke9na
"A life lived in fear is a life half lived."
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