2. Make darn sure you discharge the tube before you
work on it.
I've seen it said that discharging with a very low resistance path -
like a piece of wire - can damage things. I don't know how much risk
there really is, but I would tend do something like inserting a 100K or
1M resistor in the path to ground. The capacitance of the tube is low
enough that the time constant is pretty low even with a resistor that
high.
If I'm off base, I'm sure someone will correct me!
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