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ampage archive
Vintage threads from the first ten years
distortion ideas needed
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 4/20/1999 1:04 AM |
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chip hys  |
distortion ideas needed I have built a few f/x and trying to get a distiortion tone that I can get good pick harmonics and pedal tones any ideas for a place to start..? chip |
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| 4/20/1999 8:52 AM |
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| Don Symes |
EF86-based Tube OD Based on some discussion over in the AMP-DIY forum, I'm thinking a two-stage, EF86-based OD might be cool. All I have is the idea, though. |
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| 4/21/1999 3:51 AM |
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| Mike Burgundy |
Well, instead of using tow ef86 stages, why not a 12AX7 followed by the penthode. This way you have somewhat more gain to work with, and you might even be able to mix triode/penthode distortion. Sounds cool, anyway... Hereīs a very quick sketch of what may be a layout... Maybe something like this? 
Not that I really know what Iīm doing... ;-p |
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| 4/21/1999 7:25 AM |
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| Dan Ramage |
Is the EF86 in that schem. really acting as a pentode since the screen and suppressor grids are tied to the same potential? I am kicking around the idea of beginning yet another project to build a tube stomp box using an ef86, so I'm definetly interested in this thread. Dan |
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| 4/21/1999 9:07 AM |
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| Mike B | Ah, yes, I drew it in as a triode. Sorry bout that. Lemme see, g3 to cathode, g2 bias... This should be in the right ballpark. http://www.oli.tudelft.nl/burgundy/effects/td/img/ef86dst.gif Ideas anyone? |
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| 4/21/1999 11:07 PM |
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| Brian |
What about running the 12AX7 in parallel. It would have a lower impedanece to drive the EF86 harder right? I don't really know what i am doing either, but I put an EF86 in my last amp, and the sound is amazing. The sound is a little fuzzier than a 'AX7. |
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