Restoring/repairing/replacing classic series button contacts

[jipumarino]

Hi!

This is my first post here. I don't know if I'm getting the terminology right here, so please correct me if I'm wrong.

I have an HP-35 with some buttons that are not clicky, but springy. I've opened the calculator and determined that the springy behavior is due to the contacts being broken; the metal pieces have a vertical cut across them, I guess just due to too many presses. The buttons still work but I'd like to restore them to their clicky glory.

What would be the recommended way to restore these, besides buying a second calculator and replacing these pieces?

Thanks!