I’m working on a 1953 Gottlieb Guys Dolls pinball machine and I took the coil stop off of the moving post style of flippers and it looked like part of coil stop was broken. It has a copper ring going around the stop and though the center. It looked like one section broke off. I did not find the piece in the coil sleeve but I thought maybe it broke years ago and was removed. The nut on the stop was peened over and wasn’t meant to come off. Needless to say I twisted the nut off and bought a similar stop from Pinball Resource. The dimensions were identical but the stops insides are different. Steve told me that the piece wasn’t broken and that it was made that way. I of course felt stupid and asked if the other stop would work. He wasn’t sure.

So my questions are was this stop broken or is it suppose to only have the copper on only one side?

Will the new stop work? It’s the same dimensions.

Does a stop, just stop the plunger or does the stop have another use too? Anything to do with an electrical field? Wondering because of the different designsof copper. Probably copper is a better cushion than steel.

Thanks,
Larry.

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Thanks for all your help. I appreciate it.