Anyone have Telefunken date codes?

[DoctorD]

Can anyone identify the date code for me.

Thanks,

[Hoerninger]

To my knowledge:

U. (don't know)
MD: November 1957
01: mark for warranty

I would have expected the stamp on the socket(?)
___________
Peter

[rs237]

Hello Peter,

U = manufactured in Ulm.

regards
juergen

[DoctorD]

There were no markings on the socket.

Thanks for the info.

[Hoerninger]

There were no markings on the socket.

It is o.k. I think.
With that metal ring it is a fine collector's Tube.
___________
Peter