I thought this was an interesting presentation...
http://www.pmillett.com/file%20download ... ortion.pdf
Pete Millet does a good job of explaining odd/even order harmonics and distortion in general. Since 'Wrecks and Dumbles are known for "rich harmonic content" I think it would be interesting to see scope patterns that show harmonic peaks.
Sorry to be such a geek about this stuff.
Norm
The sound of distortion
Moderators: pompeiisneaks, Colossal
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Re: The sound of distortion
Interesting.
I guess that's why some of us prefer the amp tone with the PI unbalanced as that minimises even order cancellation. Probably also with power tubes unmatched?
And I also guess that's why Dumbles are mainly preamp overdrive and less power amp overdrive as the preamp section is single ended and the power amp section, is P-P.
I know there's some software out there that allows you to use your soundcard as a RTA, so maybe someone could get the harmonic graphical representation of a Dumble?
I guess that's why some of us prefer the amp tone with the PI unbalanced as that minimises even order cancellation. Probably also with power tubes unmatched?
And I also guess that's why Dumbles are mainly preamp overdrive and less power amp overdrive as the preamp section is single ended and the power amp section, is P-P.
I know there's some software out there that allows you to use your soundcard as a RTA, so maybe someone could get the harmonic graphical representation of a Dumble?
Re: The sound of distortion
Uh, all guitar amp preamps are "single ended", tho that is really only useful as a descriptive phrase when talking about power amp stages...And I also guess that's why Dumbles are mainly preamp overdrive and less power amp overdrive as the preamp section is single ended and the power amp section, is P-P.
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Re: The sound of distortion
In that case, then I'll say most preamp stages are single ended (audiophile amps included). There's no need for push/pull as no power required in the preamp stages to drive the next stage.
Only thing I've seen is push/pull stage for reverb driver.
Only thing I've seen is push/pull stage for reverb driver.
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Re: The sound of distortion
hi guys,
being new here, i don't know if it's okay to bump an old thread up like this, but the link has changed a bit.
here's the new one:
http://www.pmillett.com/file_downloads/ ... ortion.pdf
BTW, the file is pretty big, > 1mByte
there's other good stuff to peruse as well starting at:
http://www.pmillett.com/index.html
cheers,
unk
being new here, i don't know if it's okay to bump an old thread up like this, but the link has changed a bit.
here's the new one:
http://www.pmillett.com/file_downloads/ ... ortion.pdf
BTW, the file is pretty big, > 1mByte
there's other good stuff to peruse as well starting at:
http://www.pmillett.com/index.html
cheers,
unk