1976 models could be e-41 or e-45 chassis.some sylvania sets that came in would have build dates of certain years with earlier model chassis.i think sun tv here in columbus would alter those stickers.older sets with new built dates.found stickers placed over stickers in some cases.i have tinkered with thousands of sylvanias and have a soft spot for them.zeniths are the very best with rca and sylvania running neck and neck for second
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