integrating a feedback loop into a tube screamer

A forum devoted to mod, tips and suggestions for upgrading and rehousing your VERY CHEAP commercial stompbox to near boutique excellence.
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saemskin
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Posts: 3
Joined: 25 Mar 2008, 12:31

Post by saemskin »

Hi everyone,
This is my first post, so I would also like to say hello!

I'm new here, but not new to building things. Here are some of the pedals I have built with sound samples.
http://www.saemskin.com/Pedals/pedals.htm I need to update that page with all this stuff...
I have also built some rack gear, like the Gyraf G9 tube mic pre
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the Gyraf G9 buss compressor
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I'm partway through building an Mnates 2-1176
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I just finished wiring up a Calrec EQ, and I'm about 2 hours away from finishing my Soundlabs Minisynth
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I could keep going because I have several project in various stages of completion, Great River MP2, Neve 1073, Sontec Mastering EQ and 4 channels of supergreen pre's.

So, apart from being proud of these things, I wanted to give you an idea of the good things I hope to accomplish with whatever information we discuss here, that it's not going to go to waste.

Moving on:
I have an abundance of JRC4558 Chips that I bought. So I have decided to make a handful of Tube Screamers for my brother and some friends, BUT as I stated in the thread title, I really want to juice it up a bit. Make it fun, you know. I'm calling them the SAEMSCREAMER, see my name for the why.
So, has anyone here ever integrated a feedback loop into a distortion pedal? If so, do you have any drawings or schematics, or even an explanation for how to implement it?

I emailed analog man a few times, and we were discussing pedal deisgns, and we glazed over how cool looking the joysticks on the Devi Ever pedals, and I actually found a supplier for these. So SIMPLE! They are a 2-way pot, that's IT. Amazing in it's simplicity, I would really like to try and implement the feedback loop into the joystick and have it control feedback & tone, or feedbak & distotion.

Any ideas you may have will be warmly received.

Thanks,

Josh
http://www.saemskin.com
http://www.myspace.com/saemskinrecordings

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Entrant_21
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Post by Entrant_21 »

some excellent builds there! by feedback do you mean looping the output back into the pedal for more distortion? if so great idea! i havnt seen these pedals with the joystick but i have seen a potentiometer from a joystick and they work on the same principle. i attached an image of a simple pot lug mapping you have most likely already thought of but still it helps to get on the same wavelength!
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