I need to replace the flipper EOS switch on my left flipper of #mr-and-mrs-pac-man. As you can see, these contacts are fried. One of them was so damaged from arcing that it fell off! I want the contacts on the new switches I buy to last longer than these did. And I want to do it for all of my early SS pins. The question is, how can I reduce the arcing that damages the contacts, reduces the power to the flipper solenoids and causes weaker flipper performance?
In the picture above it appears like the metal from the lower contact was deposited onto the upper contact.
I have done some research about adding a capacitor to flipper EOS and cabinet switches. I have read that it only matters on later 80s games and newer that use parallel and not series solenoids. I have read that 2.2 uF capacitors on the EOS switches and .1 uF capacitors on the cabinet flipper switches will help. I have read that capacitors will not help at all on early SS pins. I don't know what to believe.
Bay Area Amusements has these "225K 50V Axial Capacitor - Early Williams EOS Switch Cap[s]"
I don't think I have ever seen capacitors on early Williams pins and I haven't read anything about 225K uF capacitors used for flipper EOS switches.
I know I can upgrade the solenoids/flipper assemblies, but I have too many pins to do that. I don't need to eliminate the arcing entirely. I just want to reduce the amount wear on the contacts and reduce the amount of time that I have to polish these contacts with a Dremel and #443 wire brushes.
So, what is the real story here? Is there a way I can reduce the arcing? I want the pins I have on route to have powerful flippers and I don't want to have to spend a lot of money to do it.