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.

Monday, October 17, 2016

Walrus Audio Mayflower

Here's the Walrus Audio Mayflower, which is essentially a hybrid between the Tube Screamer and the Timmy (which has its roots in the TS already). Originals use a second dual opamp for buffering the voltage divider, which in this instance seems to just be unnecessary, so I've omitted that.


at
Labels: , ,

23 comments:

  1. BerkicauOctober 17, 2016 at 12:12 PM

    4148 for D1-2?
    2n2222 for mpsa18?

    ReplyDelete
  2. shimanekoOctober 19, 2016 at 10:32 AM

    Verified. Thanks for the great layout.

    ReplyDelete
  3. BerkicauOctober 21, 2016 at 2:54 AM

    I built it using 2 5089, but when I connect it to power, the JRC4558 gets really hot. what could possibly happen bud?

    ReplyDelete
    Replies
    1. BerkicauOctober 21, 2016 at 2:57 AM

      I use 4007 instead of 4001. would it be problem?

      Delete
    2. Effects LayoutsOctober 21, 2016 at 7:48 AM

      The 4007 is fine. Does the effect work? Or does the IC just get hot? Have you tried other ICs?

      Delete
    3. BerkicauOctober 21, 2016 at 10:09 AM

      The 4558 just gets hot without produces any sound.

      Delete
    4. Effects LayoutsOctober 21, 2016 at 10:10 AM

      Then you've probably got a short from the pin 8 to one of the other pins.

      Delete
  4. BerkicauOctober 22, 2016 at 8:21 PM

    Verified, using 2n5089

    ReplyDelete
  5. morbido13March 24, 2017 at 4:14 AM

    I built this one today, works perfect.
    Amazing OD, very transparent.
    Thank you for another great layout

    ReplyDelete
  6. UnknownAugust 30, 2017 at 4:38 PM

    Just finished mine, and somehow my 3pdt switch is popping while activating effect, even with no diode, what can it be?

    ReplyDelete
    Replies
    1. Effects LayoutsAugust 30, 2017 at 4:47 PM

      Try running a pull down resistor from the board out to ground. 100k is where I'd start.

      Delete
    2. UnknownMay 25, 2018 at 2:00 PM

      Привет! А как ты футсвич конектил? по какой схеме?

      Delete
  7. GuilhermeJune 13, 2018 at 3:39 PM

    There's a mistake on the schematics that circles around the internet. The 10k resistor on the buffer isn't right, it should be just like the buffer on the Tube Screamers. This corrects the switching pop

    ReplyDelete
  8. David BrownJanuary 26, 2019 at 7:27 AM

    This comment has been removed by the author.

    ReplyDelete
  9. David BrownJanuary 26, 2019 at 7:29 AM

    Eu a partir do layout, fiz o schematic e não vi nada de errado, realmente o resistor de 10K que vai para o terra são iguais o do Tube Screamers, BB Preamp, AC/RC Booster dentre outros...

    ReplyDelete
  10. David BrownJanuary 26, 2019 at 7:30 AM

    Eu não vi erro nennhum...

    ReplyDelete
  11. SamunesApril 17, 2023 at 11:05 AM

    What type of capacitor 1uf?

    ReplyDelete
  12. noOctober 12, 2023 at 10:46 AM

    do you have a schematic?

    ReplyDelete

Subscribe to: Post Comments (Atom)