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I KNOW I didn't say that...because I had one like this one OVER 30 years ago...in a better cabinet. It was a 78 or 79 model IIRC but with the same chassis as this one. Zenith ended the 14N22 chassis after the 73 model year. For 2 years after that...Zenith had a sort of "fllat chassis" SS BW set. I have one of the 19" models....19FB12 IIRC chassis # . Therte was a 22FB12 version in a cabinet like this one. Someone has or had one on VK some time ago. The -FB12 sets were for 1975. For 1974 They had the _EB12 set which is a lot like the FB12...BUT had a regular power tranny instead of the VRT the FB12 sets have.
After 1975...for 1976..and until maybe 1980 model year or so...Zenith had the 19GB1 chassis. This is the one in my set here. It is not visible in the pictures...but this set DOES use a VRT power supply--the tranny is on a horizontal frame BEHIND that main ckt. board. This chassis was used--with a few variations-- till about the 1979 or so model year --then fully replaced by a single-board, HOT CHASSIS version...for the last couple of years of BW console sets.
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