05-18-2020, 01:24 PM
Hi and welcome,
I built one years ago for a 37-33. It used newer tubes but the power requirements where the same. It's good to regulate the filament voltage so you don't have any mishaps. Used a lm 317 adj regulator and a 6.3v winding to power it. The hv isn't too critical. All your voltage sound good and even better if they are stable under load. The 19 is a pretty stout tube and can haul down a fair amount of plate current for a battery style tube.
GL
I built one years ago for a 37-33. It used newer tubes but the power requirements where the same. It's good to regulate the filament voltage so you don't have any mishaps. Used a lm 317 adj regulator and a 6.3v winding to power it. The hv isn't too critical. All your voltage sound good and even better if they are stable under load. The 19 is a pretty stout tube and can haul down a fair amount of plate current for a battery style tube.
GL
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
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