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, October 22, 2015

Run Off Groove Britannia

And improvement over the original English Channel project, the Run Off Groove Britannia is an adaption of the classic Vox AC-30 amp into stompbox form. Couldn't squeeze this one into a 1590B with onboard pots, but it's laid out for a 125B enclosure. Pots are right angle PCB mount type, mounted from the solder-side of the board. Check out the ROG project page for a full description, schematic, and sound clips of this circuit.

You can find a 125B drilling template for this here.


  1. hi
    red led should emitter light when i play,
    d9 and d10 do soft light d1 and d2 no.
    can i use other IC like tl082 or other?
    the gain pot when turn to max gave only a soft distortion

    your website is fantastic

    Angelo sorry for my bad english

    1. The LEDs don't necessarily need to light up as they're just clipping diodes in this circuit. The TL082 can be used.

  2. Does 3mm green led suffice to replace the red one? What are the advantages of red led?

    1. The LEDs here are being used as clipping diodes. Green ones will work, but will change the clipping response in the circuit. You can experiment with other diodes as well. Sockets are always good to use for this type of thing, so you can experiment with different types of diodes.

    2. Thank you for the answer above,

      When setting the drain voltage on each FET, should I measure fron D to G pin or D to ground?