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, November 21, 2014

Dirty Punk Repeater Delay

Here's another PT2399 delay by Allesz that might be worth trying out. 


  1. the transistor 78l05 is the same that 7805?

  2. Replies
    1. Socket and use what you have on hand. I used a BC550C and it worked fine. 2N5088/89 should also work.

  3. the image of q2 is wrong, mirrored, I imagine that if you used an image of 2N transistors, and forgot to change the image. The letters are correct, but the transistor is inverted on the board.

  4. Hi, thanks for your comment, I was looking for possible problems with the pedal, since I was putting it all day, it was a whole day lost ... but I said, this can not be, it will not overcome this situation. so I started looking for information, to check with the oscilloscope, and found nothing, I said, will be the transistor? , I took it, I measured it and it was good, I changed it for another and nothing ... I changed the IC and nothing ... now that I read your comment, I'll put the plate back together ... since I ended up throwing it thinking that it was bad, I hope it is what you say about the transistor, I have reviewed the datasheet and it is as you say, therefore the transistor should be inverted :) thanks regards
    I leave here the transistor datasheet, greetings, thanks :)