bad keys on terminals

So, I'm fooling around with my Tandy PT-210 printing terminal again. Upon disassembly, these switches are revealed to have rubber domes inside that electrically connect two isolated semicircles by pressing a circle of conductive rubber. Wiping with alcohol and blowing them out gives a closed resistance of around 300 ohms, which is good enough to trigger the keyboard circuitry. I've come to one that refuses to work at all, regardless of how I clean it. So, I have two choices: 1) Glue tiny discs of aluminum to the bottoms of the rubber domes. A preliminary test of this using water as "glue" suggests this won't work for long. 2) Find some switches with the same footprint, height, and cross-shaped acutator. The first two seem easy to get. Mouser lists absolutely no switches with a cross top. So, has anyone here any pointers? -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?