05-25-2019, 01:51 PM
Best recollection is that all are battery sets. The 38 and 38A differ in that the 38A has a ballast tube so that the filaments can operated from a higher voltage. Normally without the ballast tube is 2vdc. The "B" would indicate that it's a Baby Grand cabinet.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
