Hello everyone,

My Williams Hyperball gun coil fried recently and I'm wondering if there's any sort of alternative for the WLL-SD2451588 since all the NOS seems to be sold out at this time. Looking into it myself I saw that maybe http://www.apbenterprises.com/ might be worth reaching out to however if anyone has run into this before and can point me in the right direction that would be greatly appreciated.

Thanks again,
Scott

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Hello Damon,

Unfortunately the coil seems pretty damaged to the point where repairing it probably won't be possible since the plastic sleeve is completely melted to the windings and the coil stop seems to be wedged in pretty good. I also noticed that one of the wafers on the one side of the coil is also damaged pretty badly so I will also have to see if replacements or an alternative can also be found (or made). Here are some screenshots attached for reference and again if anyone has any suggestions for what can be used as a coil replacement I'm all ears.

Best Regards,
Scott

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Hello Zigzagzag,

Thanks for your reply. I just got off the phone with Steve Young earlier from the Pinball Resource who stated all the information you provided so that seems to be the route to go. I'll still need to find a replacement for the spacer but before anything I need to diagnose what caused the original coil to overheat in the first place.

Wish me luck,
Scott

Hi Dudah,

I turned on the machine and I can see that the original fan is still spinning so that seems good. Would you still think an additional fan or something else should be added?

I was doing some quick digging around and I found a few other suspect things. For starters I found a rectifier under the playfield that has a disconnected wire. Not sure which leg it is supposed to be attached to so I haven't tried to reattach it to anything yet. I have also noticed that there is a wire that's cut in the backbox. I will have to try and trace it to see what they're used for since I'm not completely sure.

Finally is the loom fairly easy to take disconnect or what would be the best way to gain access under the subflooring?

Thanks again,
Scott

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