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July 29, 2010, 08:49:03 AM
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DIYstompboxes.com  |  DIY Stompboxes  |  Building your own stompbox  |  Octavefuzz connoisieurs, how about changing DC bias before FWR with an envelope? 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: Octavefuzz connoisieurs, how about changing DC bias before FWR with an envelope?  (Read 339 times)
Processaurus
Posts: 2495

Ben Milner


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Octavefuzz connoisieurs, how about changing DC bias before FWR with an envelope?
« on: March 08, 2007, 09:51:41 PM »

Here's a notion I wanted to run by those familiar with FWR octave designs like the green ringer, foxx tone machine, and scrambler, etc.  I was thinking what might happen happen by adding an envelope voltage to misbias the part of the circuit where usually there is a careful bias to make the two halves of the rectified signal equal, the goal being that the balanced octave/wave folding only happens when you pick hard, ideally when you pick soft its just a normal guitar that comes through, because the whole wave would be below the threshold where the rectifying happens.  Maybe clamp the envelope voltage to a DC level that will give you that nice 50/50 rectification that nulls out the fundamental.

Something like this can help address the distressing limitation  :icon_wink:with fuzzes where once your gain is all the way up, how do you go further? and how come nothing violent is happening when you play harder?
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g3rmanium
Posts: 210


Johann Burkard


Re: Octavefuzz connoisieurs, how about changing DC bias before FWR with an envel
« Reply #1 on: March 09, 2007, 04:32:22 AM »

I was thinking what might happen happen by adding an envelope voltage to misbias the part of the circuit where usually there is a careful bias to make the two halves of the rectified signal equal, the goal being that the balanced octave/wave folding only happens when you pick hard, ideally when you pick soft its just a normal guitar that comes through, because the whole wave would be below the threshold where the rectifying happens.

What happens when the note decays? You'd be in a region where no folding occurs, I guess.
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You can call me Johann. I have a site to Convert Audio Online and a Semacode Generator.
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