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Old March 21st 04, 05:56 PM
W3JDR
 
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Absolutely not!!!!!!!!!!!!!!!!!!
He needs best possible loaded Q for maximum selectivity! Good unloaded Q
will help minimuze circuit losses, but won't help with selectivity.

Joe
W3JDR

"Airy R. Bean" wrote in message
...
Then it is unloaded Q that you are interested in.

"Paul Burridge" wrote in message
...
On Sun, 21 Mar 2004 16:02:18 GMT, "W3JDR" wrote:
Airy,
What you said would be relevant only if you were trying to determine

circuit
losses due to "unloaded" Q of the components. I believe Paul is trying

to
determine the 'loaded" Q in order to obtain best selectivity (narrowest
bandwidth). Is this true Paul?

Some clarification is necessary!
The application is the tank in a frequency multiplier.
I am seeking to select for the 5th harmonic. Therefore, the tank needs
to have as little loss as possible given the fact that the 5th will be
way down dB-wise on the fundamental. I can't afford to attenuate it
too much as it's already weak to begin with. Ergo, I need the lowest
loss components and the best selectivity for the desired 5th harmonic.