[AUdubon5425]

I bought this Hotpoint 17S306 at a radio swap meet last weekend. It's very clean and the innards look to be unmolested - most everything is date coded April 1958. Sadly, the 17BRP4 CRT has an open filament.

Does anyone know if any other tubes sub for the 17BRP4 and 17CKP4? They don't seem to be a CRT that's easily found.