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 5, 2015

Analogman King of Tone

Here's Analogman's original version of the King of Tone, a highly regarded overdrive with a few "unobtanium" diodes. It's probably best to socket said diodes to play around with your favorite combinations. Switch A controls the 4-diode array in the feedback loop (much like a Tube Screamer), while Switch B controls shunted diodes (much like a RAT or Distortion +). Originally these were DIP switches, but it makes more sense to me to have these externally.

25 comments:

  1. hello

    can you make layout from this schematic?
    http://home.netcarrier.com/lxh2/web/fenpre4.gif
    link for the schematic
    http://home.netcarrier.com/lxh2/web/

    thx
    juan

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  2. Hi! I'm going to try to build it, i wanted to ask what is the purpose of the 50k trimpot?

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    1. I think it's almost like a secondary tone control as it mixes in a 10n filter cap before the volume control. Just something to fiddle with once you've got it working.

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    2. Its supposed to be a presence control

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    3. I'm getting no audible effect from the 50k pot. I've gone over it several times and cannot find an issue in the wiring. It just isn't doing anything.

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  3. Hi! I've build it and seems that d1-d4 don't work.

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    Replies
    1. What do you mean, don't work? They're not clipping the signal?

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    2. Yeah, they don't respond to swA

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    3. Also it has tremendous amount of gain and produces a lot of noise when gain knob is cranked all the way

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    4. I check my layout again to the schematic and I had the 6.8k resistor going to the diodes coming off the wrong pin of the IC (it was on pin 7 and should have been pin 6). The layout has been updated and should be good to go.

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    5. I can verify it then.

      Btw my choise is 1т4733 for d1-4 and 2 3mm red leds for d5-6

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  4. Hello,

    is this covering both circuits? I am a complete dumb on this electronic stuff, and it seems that the PCB on the KoT is rectangular not square... can you explain to me?

    sorry if this is a stupid question.

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    Replies
    1. This is my layout of the first version of the KoT. The circuit is the same, but the layout is not a replica or copy of Mike's original PCB. More than one way to arrange a bunch of components.

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  5. Hey bud, been on holidays skiing in Canadia. Awesome time...didn't want to come home to stinking hot tropical Australia...
    Now I'm back and keen to build some more of your awesome layouts. Can you please check the transfer image of this beast as it wont open for me but the Sunface will... Cheers and happy building guys and gals.

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    Replies
    1. Updated the PDF. Somehow after the last edit it got corrupt. Should work now.

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  6. Hi! your circuit is verified now. It works perfectly

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  7. hi ... may i ask what is the gray capacitor? the 1uf .. thanks :)

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    Replies
    1. It's a box film type. I get them from Tayda

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    2. how about the voltage? thanks btw

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    3. I think 100v. Don't remember exactly off the top of my head.

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  8. I have a question. The KOTs I'm looking at have 6 controls. This only has 3, and 2 toggles. Is this the Prince of Tone or an I missing something? Please explain a little. Thanks guys!

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    Replies
    1. Anyone? I'd like to build this but want to know what it is exactly. Is it a Prince of Tone? Or do I build 2 of these in series for a king of tone?

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    2. One would be the Prince of Tone, 2 in series would be the King.

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  9. can someone confirm if i am right, in the original (new one) those DIP switches are these two switches here on schematic?

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