tonestack lift

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jezzbo
Posts: 171
Joined: Fri Jan 04, 2008 12:05 pm
Location: Lebbeke, Belgium

tonestack lift

Post by jezzbo »

Hi all,

Some years ago I build a DC30 clone based on the ceriatone layout.
http://www.ceriatone.com/images/layoutP ... iatone.jpg

Since I'm a big Brian May fan and BM uses a vox AC30 NORMAL channel + treble booster, I would like to lift the tonestack of the first channel of my DC30 clone. But I'm not sure how to do this.
I assume that would do the trick to get into the ballpark sound of the normal channel on an AC30?

Thank you for your help.
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martin manning
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Re: tonestack lift

Post by martin manning »

CF or plate driven the TS is still very lossy. Lifting the bass pot's ground will get you a significant boost and flatten the EQ.
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JazzGuitarGimp
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Location: Northern CA

Re: tonestack lift

Post by JazzGuitarGimp »

martin manning wrote:CF or plate driven the TS is still very lossy. Lifting the bass pot's ground will get you a significant boost and flatten the EQ.
^^^ +1
Lou Rossi Designs
Printed Circuit Design & Layout,
and Schematic Capture
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randalp3000
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Re: tonestack lift

Post by randalp3000 »

you could rewire the EF86 channel to a 12AX7 for a normal channel. You could also wire the jacks to get single or parallel triode. Or you could get real crazy and do a single gain stage switched to two gain stages in series for tons of gain like the Mazerati GT.

here is a schematic for all the AC30's without the trem channel.
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randalp3000
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Re: tonestack lift

Post by randalp3000 »

Here's a schematic with the single/dual parallel triode input.
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jezzbo
Posts: 171
Joined: Fri Jan 04, 2008 12:05 pm
Location: Lebbeke, Belgium

Re: tonestack lift

Post by jezzbo »

Thanks for your replies. (and sorry for my very late reply.)
Also thanks for the schematics.
I will try to lift the bass pot ground first though.

Thanks again
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