Arcade parts links

General

Buttons & springs:

DDR

DDR sensors: https://www.arcadespareparts.com/arcade_parts/dance_dance_revolution_parts/ddr_floor_switch/12091.html

PIU

PIU sensors:

SDVX

Valkyrie knobs: https://bluespringexpress.net/collections/all/products/sdvx-valkyrie-knob-assembly-pair 3d printed knobs: https://github.com/Horocchi/svre9-nemsys-knob-mod

Headphone PCB:

jubeat

Button rubbers: https://item.taobao.com/item.htm?id=44786039741 Button PCBs: https://github.com/veroxzik/jubeat-boards/tree/main/jubeat-button-pcb

IIDX

LMT turntable (selectable option):

cams (90deg): https://www.aliexpress.us/item/2251832583378970.html

Springs:

Omron Microswitches:

Other

SEGA key locks https://item.taobao.com/item.htm?id=678847786370 Generic piezoelectric sensors (e.g. Drummania) https://www.amazon.es/dp/B077YDMF1T?ref=ppx_yo2ov_dt_b_fed_asin_title