I collected old tube radios when I was a teen in the early 90s, then for a time in the late 90s I collected NOS tubes themselves. I must have a Telefunken tube somewhere.
I always wanted a Telefunken tube radio, and a transistor radio. I have a British made transistor radio from the 60s, it still has the "licence sticker" from the days when all UK radios had to be licensed. I have a clock radio from Spain that looks really cool. I wanted to get a German language tube set from Spain, but the shipping was too much.

(I speak Spanish.) I LOVED Ebay back in the day, and loved going on sites for different countries. I bought several cool things, including a British Lloytron alarm clock that looks kinda like a UFO.
Anyway, back to tubes, I have a GE 6550A that was made by MPD in Kentucky as part of the last tube run made in the USA, my tube is dated 03-93. (The line was shut down in August 1993.) I also have a Yugoslavian Elekstronska Industrija (EI) tube from the old Yugoslavian factory that was destroyed in the Balkan wars. I have examples of Sovtek, Svetlana, and Tesla tubes as well. I have a Marconi tube that was apparently made in Italy and sold to the Swedish military. I have an old Zenith tube still sealed in its box. I have a lot of cool tubes.
ahhh I may be able to help if you still want a Telefunken radio..I must as though: what decade do you prefer? I can't promise a Rundfunk from the war but I certainly know where to go.