Charlie, mine is a 1400 according to the chassis tag and it has the knob on top. The 1404 I tossed had it too. Even the 51PT-1207 has it. Philco used it on a lot of sets I guess. My 1953 floor model even has a switch on the back that does the same thing.
eric
Quote:
Originally posted by Charlie
I also have the 1403. I think one of the differences is that the 1403 has the signal attenuator control on the top of the cabinet just about the crt. I don't believe that the 1400 has that feature.
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