[AMPS] 4-1000A Project

[Phil (VA3UX)]

At 09:14 PM 4/4/2001 -0400, you wrote:
>
>
>A Q of 12 is NOT some kind of magic number. It is a suggestion, 
>and efficiency varies only a small amount if the Q is 20 or 6  if it is 
>done with good tank components.
>
>12 is a number that makes people feel good, more than making 
>their amps work good. The best Q might be 6 or it might be 15...it 
>all depends.
>

"It all depends ".... on what ?  Finish the thought for the benefit of the
poor guy out there that's trying to learn.

This discussion has completely overlooked the attenuation of harmonics as a
function of tank Q.  You guys need to keep in mind that this thread started
with a request for advice from someone wanting to build their first 4-1000
amp.  I haven't seen all that much good advice so far; just a bunch of
incomplete thoughts  and a 4-1000 "expert" that has repeatedly "bespoken"
himself.

Phil


>As Phil said, play with a roller and watch what happens. If you are 
>looking for a noticeable efficiency peak...it won't happen.
>
>What you do with the input circuit can have more to do with 
>efficiency than tank Q in many cases.
>73, Tom W8JI
>W8JI@contesting.com 
>
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>
>
>


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