Quote:
Originally Posted by miniman82
If I do keep the CRT supports all on the chassis, I would have to get a new set of narrowed support arms for the side. Perhaps that's the easiest thing?
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I think that is an excellent idea, provided you have the round brown Bakelite(?) front support which was visible in Harry Poster's pictures, but not in your pictures.
I suspect that these brown and/or black brackets were actually used as part of the screen mask on the earliest prototypes.
Look at the color picture of the two color sets in the March 1950 RCA demonstration to the FCC (near the bottom in this link which shows very dark masks):
http://www.earlytelevision.org/color_prototypes.html
My guess is that one of the estimated 35 model (circa 1950) model No. 1 Receivers and Converters (modern term: monitors) was re-purposed for the newer system and this is the reason why there are so many joints in the chassis as they recycled parts and complete circuits from the old units.
http://www.earlytelevision.org/rca_model_1.html
This theory would also match the date on the tuner. If you notice the picture, this model uses strait support brackets. The uneven bends on your brackets could stem from the time that this set was converted from a (circa 1950) 16 inch CRT to a (circa 1953) 15 inch CRT. If anyone knows the bell-bottom dimensions of the 16 inch 1950 prototypes, this probably could be confirmed.
http://www.earlytelevision.org/rca_color_prototype.html
In the top right photo, notice how the HV cage in the converter is placed on the right (when viewed from the rear.) If you had a cage, it would go directly behind the crudely bolted on upper control panel.
Also notice how the left side of the receiver chassis (again, when viewed from the rear) has what seems to be the tuner side of the set below bolted on with similar tube placement. Also they used apparently identical CRT supports to your set on both model 2 and 3.
To me, all these indicate reused parts.
James.