My 1950 Gottlieb knockout uses a bunch of what I believe are called R type relays. I have three of these relays with 4 sets of contacts of normally open contacts. The contacts are worn down with basically nothing left. Has anyone tried to replace just the contacts, any suggestions?? Can't seem to source replacement relays like this anywhere and not sure how best to go about replacing just the contacts.
Thanks,
Matt

Yup those!
My knockout has some with very little contact material left. PBR said they are unavailable and there are no replacement contacts. Steve did get me a couple parts relays to replace the ones in my game that were totally shot

I'd just like to have either a solution for replacing the contacts in the future or some more spare relays from parts games. Unfortunatly don't see many parts 50s woodrail games for sale. May try coming up with a method to replace them with standard tungsten leaf switch contacts - just curious if anyone else has been down this road.