11-21-2024, 12:04 AM
I think you have the correct take on your set. Ron's annotated early schematics that note the below B22000 serial numbers would confirm that (I believe that is what you are looking at as well). I'm betting the S/N 870044 is actually B10044 ??
https://philcoradio.com/library/index.ph...chematics/
https://philcoradio.com/library/index.ph...chematics/