Quote:
Originally Posted by edison64
I noticed that there are several yellow branded Motorola tubes in that set, it would have originally came with all white logo and apparently it must have been serviced at some time because the yellow logos if I remember right, service or warranty work was denoted by yellow logo tubes. Are the date codes very similar on both tubes?
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The yellow branded Motorola tubes are Sylvania sourced. They're probably original. That must be the first model run where Motorola had the tube supplier print their logo on the OEM tubes. The earlier models were equipped with tube branded with the supplier's name.