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Help me avoid stupid mistakes in my schematics.

Discussion in 'Pickups & Electronics [BG]' started by knegolf, Apr 3, 2013.

  1. knegolf


    Dec 23, 2007
    Hi, I have been doing some drafts on some schematics for my new pickups. I am planning to use three 3P4T rotary switches to choose from series, single north, single south and parallel as well as using a third switch as a pickup selector.
    The schematics were just hand drawn with a ballpoint on some graph paper, but i hope it will be easy enough to understand.

    I would be ever so grateful for comments on weather or not this is a viable solution to the type of switching I am after. Particularly when it comes to grounding and other things that can cause audible discrepancies.

    The switches that I am going to use are the Electroswitch C4D0304Na-s non shorting.

    Some clarification on the schematic:
    The numbers on top are just to help me remember which mode does what. 1=Parallel, 2=Single North, 3=Single South and 4=Series mode.
    The contact point labeled 1O+ Is the hot output of the Neck PU
    1O- Is the cold output, or ground of the Neck pickup, I didn't label it as ground since I believe that it needs to stay floating to be able to be wired in series with the other pickup.
    The Contact labeled 2O+ is the hot wire on the bridge, and the last point is obviously ground.

    The things that I am not sure about is the approach of shorting the internal coils to their respective pickup ground when using single mode. Is this a good solution, or do I need to short them directly to the systems main ground point?
    And also, will the PU-Selector work if it is wired the way that i have drawn it?
    The outputs from the pickup selector will be wired through a pot and then straight out to the jack. And there will also be a Piezo wired in parallel on the jack with its own volume

    Thankful for all the help I can get.

  2. knegolf


    Dec 23, 2007
    Ok. So i realize that the schematic is quite hard to read in an efficient way, so i redrew it using the old classic MS-Paint, i hope this will be a bit easier to understand and comment on. The connections are done the exact same way as before, but drawn in a bit more schematic-like fashion.

    My questions are still the same, will this work? or have I done something silly?

  3. eddododo

    eddododo Supporting Member

    Apr 7, 2010
    I don't play with a lot of coil switching and the likes, and this is hard to read on a phone.

    BUT I like the neatness of your layouts.. its something I struggle with
  4. knegolf


    Dec 23, 2007
    Thank you eddododo. Do you mean the neatness of the switching system or the schematics? If you mean the schematics, I can't really take credit for it since it is very inspired of a lot of other drawings i found on the net, plus i copy/pasted in a bunch of symbols given the limitations of Ms-Paint.

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