1950s General Electric 21"

[Tube TV]

I've got one that's a year older than yours with a series string chassis.

You could dim bulb it, but most likely there's not going to be much activity. By the look of the transformer and tube shields it's been in a wet shed for along time. Most of the caps in this set are wax paper. If it were me I'd rather even jumper in some new caps before powering up. At least in the horizontal osc / output, boost filter, vertical osc / output and bring the electrlytics up slow on a dim bulb.