Eric,
It is actually an early 1948. The tuner is date coded 1947 but the cabinet is april fools day 01/04/48.
I washed the cabinet and touched up some scratches with stain and she looks a lot better. I need to cleen or replace the two speaker grille cloths that is really dark and dirty. The chassis has completely shot electrolytics but with outboard caps connected with clip leads I was getting good pictures and sound that showed me that the alignment is right on. Except for 3 miniatures in the tuner and a 6AL5 this set is all octal tubes! I've never seen so many 6SN7's on a TV chassis. That is really early post war design. The chassis is actually a Transvision product, re-badged and put in a Sightmaster made cabinet. The only other 15-S-1 I have ever heard of is owned by Steve Mcvoy and is in his museum. The 15AP1 Dumont tube is a straight gun (no ion trap) yet has no aluminizing. This is just inviting an ion burn but my CRT has no smudge and measured like new right off with the B&K tester without any of the normal wait for the filament to wake up syndrome. The CRT itself is ripply glass and is scarry looking that it might blow up in your hands. I made a custom table for it out of long screw-in legs. With rabbit ears on top accenting the theme of the legs this will be quite a sight....master!
