I have four brown Alps switches that are dead. I ran them through an ultrasonic wash and tried to clean the metal bits with isopropyl alcohol but unfortunately they're still not working. I think I should be able to save them if I could understand their construction better. I'm wondering, where in the switchplate does the contact happen?
![Image](https://i.imgur.com/P7QRWsZ.jpg)
![Image](https://i.imgur.com/ZSh0yCF.jpg)
Thanks!