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.

Friday, March 2, 2018

Jext Telez White Pedal

Here's a pretty cool one for Fuzz Friday–the Jext Telez White Pedal. It's a recreation of an onboard overdrive unit in a vintage Vox amp used by George Harrison in the late 60s. Schematic can be found here. Pots are board mounted and I've tweaked the Yoko switch to just be a toggle instead of a rotary like the originals, and it should fit nicely in a 125B.


7 comments:

  1. verified, with the exception of the gain pot working backwards.

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    1. Thanks John! I did the Tagboardeffects vero layout on this one, but ran into some oscillation issues in the upper end of the gain knob that I've not sorted out. I was hoping to see this layout work so that I could have another go at it. It's an awesome sounding pedal!

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    2. Hi Wad, I'm looking to build this. A few people have encountered the oscillation problem. How did you manage to sort it? Thanks.

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  2. Thanks for catching that, John. Fixed now.

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    1. Awesome! Much appreciated, David.

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  3. After build gain pot did not work. Problem was in lane that connected resistor 18К to ground. I downloaded schematic on first day after publication :) Now picture is right.

    Effect works perfectly, very cool pedal. I used Dunlop inductor with a green dot. Thanks for this and sorry for my english!

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  4. Thanks for sharing! Does orientation of the inductor matter? I picked up the same Dunlop one a few others here got as well. But never used an inductor before so not sure if it's orientation sensitive.

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