Could you substitute with something more modern?
This device was probably obsolete when it was built. The transformers were designed for the impedances of the 1920s tubes, so probably not easily.
There's a chance I can get the shell off and see if there's damage right at the connection point. I'll do that eventually, but there are other things I want to work on next.
Gotcha. I know nothing of this, but was thinking people who redo radios with a Raspberry Pi inside that can make it run like it originally did but also with the possibilities of new features. Like those WinAmp radios someone was selling recently
Yeah there would be no use in doing that here, seeing as how it's not a "complete" set. You'd need a speaker (or headset, most likely) to do anything.