What Model Zenith?

[ChiefRider]

Sounds like you have a nice set there! It could have been '66. I remember my dad considering other sets (even tho we were a Zenith family). What made him decide on the roundie was our dealer- repairman. He told my dad that the round crt's were easier to replace than the rectangular crt's. That was during the era when you always planned on repairs rather than replace!