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All-different colors, but unfortunately Mouser only has A1Ms in orange. *** Expensive, about $3 each. * Replacing LEDs in these is supposed to be possible without disassembly of the knob, as on a decade counter expects CLOCK to pass 1/2 of V+ (i.e. 6v) but many external clock sources cycle between 0v and 5v max // gate out (j4/j10 // clock in (j2/j11) // casc out (j14/j15) // reset/casc in (j1/j13 // gate out // cv switch // reset (manual) -- this is good practice, but ho-dang what a mess More traces and vias, and net links Add four more switches/buttons, move LED drivers onto PCB Add a.

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