About 10 yrs. ago I ran across a Transoceanic in an antique shop. Big ol' thing, in a case similar to a portable sewing machine.
I didn't know they made that radio back then. It's a mod 600 IIRC, circa WWII era.
Bought it, cleaned it up, was dying to try it. Read up on them, 'don't try it unless it's been recapped.
Tubes uncommon and one tube, the main one is next to impossible to find, esp unused. Oh, and expensive.
I threw caution to the wind a plugged it in.
It worked ! Unplugged it a put it on the shelf.
I think Zenith made these into the early 1980s.
There were still primative but powerful radio sets.
We were stationed overseas in Japan in the 1950s. Dad’s radio would pick up broadcasts from Moscow, thousands of miles from us.