[Phlogiston]

It would make a lot of sense to use a polypropylene film 8 uF cap for C104, the first filter after the rectifier. This radio requires a lot of DC B+ current and a modern 8 uF electrolytic won't last long in this location because of the high ripple rating needed.

This is what I would use, it will basically last forever:

https://www.tubesandmore.com/products/ca...ylene-fast

If there is one thing I could do for other restorers is to impress this point upon them.

I will add: You can usually get a 10uf in those cans. This is the spec for a 80 tube and may reduce hum somewhat.

If you can use these caps in all filters - great! If you just have to save some money (6$ - 8$) use them in the first filter.

After 1930s radios the uf values of caps increase greatly but the B+ also tends to be less. We are stuck with electrolytics here.