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.
Subscribe to:
Post Comments (Atom)
verified, with the exception of the gain pot working backwards.
ReplyDeleteThanks 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!
DeleteHi Wad, I'm looking to build this. A few people have encountered the oscillation problem. How did you manage to sort it? Thanks.
Delete(just noticed your comment... sorry)
DeleteNever did fix it using the vero layout. I'm using David's layout here without oscillation. No issues!
Thanks for catching that, John. Fixed now.
ReplyDeleteAwesome! Much appreciated, David.
DeleteAfter 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.
ReplyDeleteEffect works perfectly, very cool pedal. I used Dunlop inductor with a green dot. Thanks for this and sorry for my english!
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.
ReplyDeleteVorrei costruire il pedale, non ho capito i collegamenti dell'interruttore rotativo, dove posso trovare uno schema dei collegamenti esterni?
ReplyDeleteSi può usare un induttore fasel al posto del Dunlop.
Grazie
Nicolino Pagano
Questo non utilizza un interruttore rotativo. Usare un DPDT on-on-on interruttore a levetta.
DeleteGreat pedal! Used rotary switch for 4 points, added 15n cap!
ReplyDeleteThis is verified.. I used a notch filter gyrator instead of the wha inductor,..sounds great!
ReplyDeletehi, just wondering how you implemented a gyrator instead of an inductor. would love to know more.
DeleteHi, I've done this one a few weeks ago, it works fine ! But the gain pot is working backwards, and didnt give a lot of difference between light gain or fuzz... Is there any solution for this issue ? Thanks
ReplyDelete