Telefunken Black Diamond E88CC / 6922

If you take a tube, any tube, and put Telefunken on it; is it a Telefunken? May I posit that only a Telefunken is a Telefunken and a non-Telefunken is not a Telefunken no matter what name you put on it?
Of course you can take a Telefunken and put any other name on it and it will still be a Telefunken.

Roxy, I know, I was just bored.

Slikric,
You should try them, why not? They may be great and you'll never know until you try them. Good luck to you.
The Telefunken labeling moderately bothers me because IMO it's a marketing gimmick which does not necessarily mean the tube is without merit.