Switch, triple pole double throw, center OFF position K switch normally-open pushbutton push-button D Push button switch, generic, two pinsStandard switching diode, DO-35 Pin header 2.54 mm spacing D 2 rotary switch - 7mm, with 3-4mm extra space available - mini toggle pushbuttons: ample space above 11.75mm (existing 1p12t rotaries, use 11.25mm holes to PCB edge 8.2mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 44-pin D-Sub connector edge mount solder cup female x-pin-pitch 2.77mm mounting holes 63.5mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 37-pin D-Sub connector, straight/vertical, THT-mount, male, pitch 2.77x2.84mm, pin-PCB-offset 14.56mm, distance of mounting holes.