Fixing an old transistor organ: how do I fix these switches that seem to rely on the springiness of metal in order to make contact?
So, I'm working on fixing this big ol' Doric organ (previously
), and I stumbled upon a big break: it appears that the voices, as well as the vibrato, may not be broken, but just the switch activating them. However, this switch seems to rely on the exact same principle as the key contacts, and that principle is failing hard fourty-something years after this thing was built.
See this picture for a quick hint
Basically, two wires, one which is the contact and stays at a certain place, and the second which is supposed to spring onto that contact when the key is depressed. Unfortunately, the second one is no longer very springy and I believe that these contacts are a bit rusty/bad.
So, contact cleaner is obvious solution #1, but the other problem is that with a few of these buttons, the piece of metal which is supposed to move onto the other just doesn't, and I don't have much of a way of bending it, since the furthest it can travel right now is the other contact. Also, just rebending this wire is a temporary fix, I'd guess, since, after all, it'll bend back like it has over all these years, leaving the next aspiring electrician thinking that the vibrato circuit is broken.
So, please let me know your thoughts! I am not even sure what the term for this 'keying system' is called, so my google-powers are weak. And any help would be so, so appreciated!