[Arran]

I think Philco's first TV was the 48-1000, I know that doesn't make much sense but the higher number came first. It isn't too often that a picture tube is "burned" out in the manner like a 5Y4 would be, but they do get worn out. This TV is kind of unusual for a Philco, it uses an electrostatic picture tube like an oscilloscope, a 7GP4, later versions used a 7JP4 like most other electrostatic sets had. You could roll the dice and make an offer, they are likely much less common then a Motorola from the same era.
Regards
Arran