11-04-2020, 01:01 AM
There were still a fair number of the old 21-inch round screen sets in service when I got into the business in the mid-70s. Mostly RCA and Zenith. A lot of them were quite a piece of furniture, so people would spend the money to fix them. We had a place that would rebuild the tubes for about $45 our cost (a new one was around $175). I still remember the part number, 21FJP22A.
Tube audio? If you still love vinyl records, you need a tube amp for them to sound "right." At least the preamp.