Quoted from vid1900:
The first problem is that the old coils are shorter than the modern standard, AND they are 28v instead of 50v.
So we need a SFL 19/400 - 30/750 coil. Often used in games like Black Knight*, the coil is full size, 28v and has plenty of power. Exactly what we need.
You also need a base plate, flipper bushing and a high voltage EOS switch (don't reuse the old one that lacks the "helper" spring leaf).
Terry at PL will actually make the entire assembly for you for only $36:
Here are the options to choose:
I know right now many of you are saying "Thirty Six Dollars??? To rebuild my flipper?", but look at it this way:
1. You are getting a completely new everything. Nothing to polish or clean.
2. You are getting that "snappy" Fliptronic feel - the best flipper design ever made.
3. Rebuild kits in the future will only be $21 (instead of $44 for the old style Williams one).
4. You can sell your old mechs and coil and get a few bucks back towards your new stuff.
5. You can use modern flipper bats, so you get all the cool colors, transparent, illuminated......
* Firepower II, LaserCue and Starlight were the first games to switch to 50v flippers.
Can I also do this to my Gottlieb 1971 Playball EM? I've read most or all of this thread and couldn't find (or missed) a conclusive answer about doing the WPC upgrade to EMs. I'd rather drive 15 minutes to Pinball Life than order the correct/crappy parts from PBR.