This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.

Thursday, March 28, 2019

MI Audio Tube Zone

Here's the Tube Zone distortion from MI Audio. Original has 6 knobs with the Presence pot internally as a trimmer, but I know how you guys like to fiddle with knobs, and the layout was turning into a 1590BB size anyway, so I made it external. Schematic available on FSB.


11 comments:

  1. Great! Thank you! If caps are rated high enough, can it be powered by 18v?

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    1. I see no reason why it couldn't be.

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    2. Vou testar esse projeto com dobrador de tensão chaveado para poder usar o pedal em 9V ou 18V.

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  2. I think you could best change out the B20k presence for a B25k since there are no (cheap) B20k external pots.

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  3. 100% building when verified!! im ordering some parts right now. This sounds HUUUGE!

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  4. Precense also reversed and the 220n/100k should not go to the emitter but the collector of Q2. I would suggest using a B25k as Presence as stated before and if you want to be very puristic put a 100k between legs 1 and 3 to get B20k.

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  5. Its verified! Built this one last year and its awesome fx! Great sounding one!

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    1. Effects Layouts admin you are great guyz for all the schem layouts. So far i had 45 buiild to date the latest is friedman be od.!im so honored to be part of this lead burning world! Tnx guys! Jun fr Philippines.

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