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I pulled the chassis out and took some pictures, it's a most unusual set.
The chassis is quite interesting, made from Aluminum, everything is screwed in, no rivets, it seems to be built around a massive Aluminum top casting with the sides bolted to it and the top welded on, it's so thick on top that the sockets inside the HV cage are recessed into the chassis and the tubes only go halfway into the sockets, also the tubes ride on the tops of the screws holding the sockets in, making the situation worse. It feels like something from a small company working out of a garage, even the cabinet, which looks really slick but isn't all that complicated in construction.
The amount of labor required to bolt it all together must have been substantial, stamped steel and rivets would have cut the work significantly, but maybe that's why they were out of business by 1950.
Interesting that the 5U4 LV Rectifier is inside the HV cage while the 5V4 Damper tube is outside by the Filter cans, I checked the schematic thinking they had been switched but no, that's the correct layout. Maybe one of those engineering Doh! moments when they realized they made a mistake but it was too late to change it?
The CRT has a ground wire taped to it, when the mask was removed it allowed the CRT to slide forward enough to lose contact with the ground springs, the solution was to tape a ground to the tube and screw it to the chassis. The age of this hack tells me that the mask was removed long, long ago, no doubt so the visible area of the screen would be larger, maybe he saw a Porthole set somewhere and got the idea.
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