Flipper Coil Connections - 1991 Williams

Kryzsky

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About to install a flipper rebuild kit on my T2, I wanted to double check with you guys before going ahead. I've read quite a bit online but got confused when I went over to a friend's and saw different connections on his T2 flipper coils and EOS. This is my first rebuild and want to be sure so I don't melt anything down.


flippercoilt2.jpg



With these connections, current flows through the larger coil wire when the button is pressed since the switch is closed. Once the EOS switch is opened, the large coil wire is taken out of play and current now flows through the small coil wire to hold the flipper up.

Did I get that right?

Also, am I correct in saying the wires that deliver 70 volts can be connected either way? Since they do not have a ground reference?


Thank you
 
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I cover the wiring of that style of flipper coil here:

http://warpzonearcade.com/?p=159

You know... where you stole the coil picture. haha!

EDIT:

Also, am I correct in saying the wires that deliver 70 volts can be connected either way? Since they do not have a ground reference?

No... they can only be connected in one way. I'm not sure what you mean but "ground reference" but there is definitely a path to ground through the cabinet buttons and flipper relay. I didn't re-read my conversion article but I'm pretty sure I explain polarity and how to determine which wires connect to which lugs.
 
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Ahh, that's your site! I did read through your instructions and they made a lot of sense, only got confused after I saw a friend's T2 with a different configuration so wanted to come here to make sure.

Beautiful photo also, forgot to snap some of my coil this morning and that one popped up with google images. Thanks for having it out there!


Will definitely take a closer look at my schematic to made sure I have the 70V wires connected properly.

I don't trust any of the connections made on the machine when I bought it, one flipper coil is also missing diodes.
 
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