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#1 I believe is the contrast level
#2 = dial lights.
I would expect that one to be a '49 model, but possibly made in late '48.
Look at the back of the speaker. It should be stamped with a 343_ _ _ number.
The 4th digit should be the year, the 5th & 6th should represent the week.
I've noticed that many Zeniths have the month & year hand-written on the
shelf that the main chassis sits on.
I would expect that set uses a 16AP4.
The "Marlborough"
Last edited by John Marinello; 03-25-2012 at 08:31 PM.
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