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Wednesday 16 May 2018 at 07:05
Quoted from Kiwipinhead:Yes it is. Think even Data East had them. I think it there to stop the buzz sound when the flipper is held in the up position.
They also used them on EM's. Same idea.
Source: http://pinside.com/pinball/forum/topic/up-the-irons-the-iron-maiden-pinball-official-owners-club/page/19#post-4400538