Quote:
Originally Posted by Kamakiri
Got this chassis as a present from DavGoodlin 
He said it was an Admiral, but there's no way it's an Admiral. Take a gander and see what you think it is......
The only indication is a mark of Emerson on the ballast tube, but I can't find any Emerson sets that have this style control layout.
Look at all the filter cans!!!  And a ballast tube and selenium rectifiers with a 12" screen. This is an odd duck, whatever it is..... |
It probably is an Emerson set. I saw at least two Emerson branded tubes in the chassis.
I don't know where you saw that Emerson logo. I looked at the ballast tube and didn't see anything but a perforated cylinder over the tube itself; there was no logo on that cylinder, unless I was looking at the wrong part.
BTW, this is the first TV I've ever seen that uses a ballast tube in the power supply. Every set I've ever worked on has had a power transformer and at least one 5U4 rectifier, or series string filaments with seleniums.
That this set uses a ballast tube probably dates it to the late 1940s--'47 or '48. By 1950, however, I am sure the 5U4 had taken hold as the rectifier tube of choice in most TVs, although my folks' second set, a 1955 Crosley Super V 21" b&w console, still used selenium B+ rectifiers. That set had two such rectifiers, probably wired in parallel across the output of the B+ supply. The plate voltage for the tubes was probably taken directly from the output of the rectifiers and fed through at least one filter capacitor.