Hi Peter, I've applied more wood dye to the panel surface and as the attachment shows it's starting to resemble the original part.
Hi Lee, it's a scary business removing and refitting those 15" tubes. In my T23 it's easy to lift out the tube but refitting it is a real hairy job. The tube bowl is placed on a special metal plate which must be aligned with the four threaded spacer rods and these never line up first time so you are holding the tube with one hand and fiddling about with the rods with the other. Not a pleasant experience.
But if you think 15" and 16" all glass tubes are scary just check out the 20" Dumont tube.
From the ETF:
http://earlytelevision.org/dumont_20AP4.html
DFWB.