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, June 27, 2016

Fulltone Fulldrive 2

I got a request for the Fulltone Bassdrive, and upon examining the schematic for it and the Fulldrive, there's only a few capacitor value changes between the two, which I'll detail below. All that to say, here's the Fulldrive 2 Mosfet. It's a Tube Screamer circuit with some interesting mods on it. Schematic is easily found on Google. Note that the Boost function of this circuit only works when the overdrive portion is already engaged. Pots can be board mounted and if the switch numbering is confusing consult the General Layout Notes tab for clarification.




For those of you who are interested in the bass version of this, use this layout to populate the Fulltone 2 board for the Bassdrive:

14 comments:

  1. doesn't this pedal use a On/On/On switch?

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    Replies
    1. Yes, the comp switch is an on/on/on DPDT

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    2. Maybe is more correct to call it DP3T?

      Are we talking about this?:

      http://www.guitarelectronics.com/media/img/guitarelectronics/W250-H150/S/swm2connections.jpg

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    3. Haven't heard it called that, but that diagram looks right.

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  2. already been checked? It works? thank you

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  3. I made it, but tone pot must be "C" - rev audio

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  4. Hello,
    1uF caps are tantalum?

    ReplyDelete
    Replies
    1. They're non-polarized film box caps in these layouts. I get them from Tayda.

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    2. This will be OK?
      https://www.banzaimusic.com/Nichicon-MUSE-ES-1uF-50V.html

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    3. Yes, those would work, but these are the ones in mind:

      http://www.taydaelectronics.com/capacitors/polyester-film-box-type-capacitors/1uf-100v-5-polyester-film-box-type-capacitor.html

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