Are you sure those are right numbers? 12A8 has a top cap. Your other tubes don't. Could be right but 12SA7 was more popular with the others.
50L6 is a tube used in 5 tube radios. In 6 tube radios 35L6 is generally used. Filament voltage should add up to the AC line.
Norm
:Hi.
:I am trying to identified this radio.
:It's a Sparton AM Short wave 1939 Model
:It has 6 Octal tubes
:2 12SK7
:1 12A8
:1 12SQ7
:1 50L6
:1 35Z5
:If you can help I would appreaciate very much.
:I have a photo of the radio.
:Yours truly
:Ken