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Steps. Exact configuration TBD. One SPDT switch per step, to set clock rate (if onboard clock is used // 11 SPDT switches (many used as SPST 2 momentary pushbutton switches 1 rotary switch - 9.5mm, +5mm extra space available - mini toggle pushbuttons: ample space above 11.75mm (existing 1p12t rotaries, use 11.25mm holes to PCB edge 15.979999999999999mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 15-pin D-Sub connector horizontal angled 90deg THT female pitch 2.77x2.54mm pin-PCB-offset 9.4mm 62-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, male, pitch 2.77x2.84mm, distance of mounting holes 33.3mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 37-pin D-Sub connector horizontal.

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