My 21FJ is almost on it's way!

[3Guncolor]

Also watch the high voltage level. It's a good idea to have a good meter to check it. When I fire up a vintage color set for the first time it's the first thing I check.
And to add to what Pete said it's a good idea to have all high voltage covers inplace as much as possible. Use 6BK4C it has better shielding then the early 6BK4's did on any set that uses them for HV regulation.