A coin acceptor takes the right coin and rejects everything else. Mechanical checks geometry, comparators match a sample coin, CPU types measure several properties at once. How all three work, and how to read the spec sheet.
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Two numbers cover most of it: 30mm for action buttons, 24mm for start and tight spots. The full system — American buttons, big domes — plus the snap-in vs screw-in choice that actually causes returns.
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American sticks: bat top, stiff spring, long throw — built for public floors and the classics. Japanese sticks: ball top, light spring, short throw — built for fighting games. The real differences, which machines want which, and the mounting trap to avoid.
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Microswitch sticks win on unit cost and two-minute field repairs; Hall-effect wins on lifespan and input consistency. Here is the comparison in numbers an operator can use — cycle life, wiring, service time, and which machines justify which stick.
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A practical buyer and engineering guide to arcade joysticks, covering centering structure, lever travel, restrictor shape, panel thickness, and game type so sample review, bulk purchasing, and maintenance decisions are easier to align.
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A practical buyer and engineering guide to microswitches, covering operating force, reset feel, terminal direction, mounting holes, and batch consistency so sample review, bulk purchasing, and maintenance decisions are easier to align.
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