[drh4683]

Cool set! Glad you saved it. By the chassis number, its a 1966 model, but theres some more to it than that.....

You have a very special set there. Its zenith's longest lasting production run of a particular TV model. It was introduced in 1966 as the model N2428W and was available as late as 1973 with the C2428W using the exact same 14N22 chassis! The TV's were completely identical as well, including channel knobs.

You can tell what year your set is off the model number. The model will start with a letter N,X,Y,Z,A,B,C which correspond to the follwing years respectively: 66,67,68,69,70,71,72,73. Also, take a look at the CRT label. The CRT is always the newest component of the TV and would indicate to the closest time as to when the set was manufactured. The date code on a zenith is a perforrated number like "1-19" which would indicate 19th week of 1971. The first digit is the last digit of the year. Third digit is assumed by approximate decade.