Difference between revisions of "Big Muff tone control"

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== AMZ tone control ==
 
== AMZ tone control ==
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This improved version of the BMtc offers a second potentiometer, "Body", which controls the depth of the mid frequency notch, effectively achieving an almost linear response.
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This improved version of the BMtc offers a second potentiometer, "Body", which controls the depth of the mid frequency notch, effectively being able to achieve a nearly linear response.
 
<div style="float:right; border: 1px solid #bbb; padding: 5px">http://www.beavisaudio.com/techpages/BigMuffToneControl/BodySchematic.gif<div>'''Schematic'''</div></div>
 
<div style="float:right; border: 1px solid #bbb; padding: 5px">http://www.beavisaudio.com/techpages/BigMuffToneControl/BodySchematic.gif<div>'''Schematic'''</div></div>
 
<div style="float:right; border: 1px solid #bbb; padding: 5px">http://www.beavisaudio.com/techpages/BigMuffToneControl/BodyOnPot.gif<div>'''Wiring diagram'''</div></div>
 
<div style="float:right; border: 1px solid #bbb; padding: 5px">http://www.beavisaudio.com/techpages/BigMuffToneControl/BodyOnPot.gif<div>'''Wiring diagram'''</div></div>

Latest revision as of 09:23, 28 September 2011

The passive "Big Muff tone control", originating from Electro-Harmonix's Big Muff Pi, has become a popular circuit building block, mainly due to its simplicity and versatility.

Standard circuit

The standard BMtc circuit doesn't have a flat frequency response in its "neutral" position. This is what the frequency response looks like when the potentiometer's centered.

OriginalSchematic.gif
Schematic
OriginalOnPot.gif
Wiring diagram

tone2b.gif

AMZ tone control

This improved version of the BMtc offers a second potentiometer, "Body", which controls the depth of the mid frequency notch, effectively being able to achieve a nearly linear response.

BodySchematic.gif
Schematic
BodyOnPot.gif
Wiring diagram

tone2d.gif tone2e.gif