I know this is a long shot, but doesn't hurt to ask. I want a P11 phosphor tube for my 570/575. I know the pitfalls of them vs regular green P1/P2/P31 phosphor for day to day use, but I still want one.
Can trade a working P1 tube from my 575 if you wanted a green one in exchange (slight burn in, at the bottom lower left corner where the dot must have remained idle for some time). Located in Rochester, NY.