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Williams, 1984You're currently viewing posts by Pinsider zacaj.
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There is no driver transistor, it's powered directly through the cab switches. Newer games buzz because they're being pulsed through a transistor, but that's not the case here. Usually a buzz on an older game with DC flippers is due to the eos not opening, or miswired.
Coil isn't getting hot after play?
Tried re-mounting the coil stop?
If you hold the plunger while it's buzzing, does it stop?
Quoted from MoSeS_1592:Thanks for clarifying that! Makes sense.
Technically since these are directly powered DC coils, there shouldn't be any vibration. Plunger should just move all the way and stop when it hits the stop. But in AC/PWM flippers, the vibration against the stop is what causes the sound
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Rochester, NY