Well, flash forward about 6 years and I finally scored the Airline version!
Not the most eye catching color scheme, but it's in very good condition.
Now I finally know what the back and knobs look like. Seems that the back is identical to the front but without the center punched out.
The oddball 8.4VAC 10ADP4 CRT has a nice filament glow but 0 emissions. I'm guessing the cathode is open. I'll attempt to reweld it.
Looks like it's seen very little servicing. Some of the tubes appear to be the original Airline branded ones including the CRT.
