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  • #31232
    Anonymous
    Guest

    Hey folks.  Building a marsha tone and am scratching my head on this switch.  I’ve never had to install one of these on/off/on switches before and am confused as to how to do it.  I am not seeing any options on the pcb and the instructions mention it, but there aren’t any visuals.  Does it have something to do with jumpering off of R12?  Any help or photos would be greatly appreciated!  I’m a noooooooob.

    #31233
    Billy
    Moderator

    The on off on switch is labelled SW1 at the top of the pcb it’s for switching between different diodes and no diodes

    R12 is a separate mod allowing you to use a DPDT switch for red (hot) and blue (normal) modes if you don’t want to do this you’d place a jumper in R12 if you do wire in a DPDT on on switch like this

     

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