I remember an oddball 12" B&W Magnavox that must have been one of their last tube sets. It had a vertical osc/output tube (IIRC, 17JZ8) and a horizontal output/damper tube (IIRC, 38HE7). It used a solid state "stick" HV rectifier and it had a couple of modules for the sound and IF.
I also had a 12" Motorola "handle on the side" B&W set that claimed it was "solid state" on the front; however, it had some sweep circuit tubes in it. I guess that one was a "friday job".
The first RCA and Motorola solid state color sets still used an HV rectifier tube and I've seen many solid state B&W sets that still had a tube for the HV rectifier. I think the Philco Safari and the '60's era Sony portable B&W's used several subminiature tubes in an HV multiplier circuit.
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