Couple of questions from a CRT ignoramus:

1. I have an SE with bad screen burn. Can this screen in the SE be replaced with a Plus screen? I have a spare, dead Plus and think the SE a better machine to preserve, on the whole.

2. A failed analog board transplant into a Classic II means I have to try again. For how long does the CRT/ HV circuitry retain a charge, unplugged? I'd want to wait until being sure there is no danger before disassembly and re-attempting repair.