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View Full Version : New Black Diamond Series tubes from 'Telefunken'...


Marco
06-10-2020, 14:55
Has anyone seen these: https://www.telefunken-elektroakustik.com/shop/vacuum-tubes/black-diamond-series

Of course, it's not the original company (I believe now having been bought by JJ), who aren't particularly renowned for producing the best tubes, but what's interesting this time is that all valves for sale have been properly tested and measured (with readings marked on boxes), which you'll see with the likes of this KT88:

https://www.telefunken-elektroakustik.com/product/kt88-tk

Could be an interesting option for anyone after reliable examples of the most common varieties of modern production valves... Anthony, were you aware of this, mate?:)

Marco.
karma67
06-10-2020, 17:01
info on the net suggest they are from the jj factory
Wakefield Turntables
06-10-2020, 17:59
Also quite expensive! I think I'll wait until we hear a few reviews. I'll stick with my Genelex gold lions for the moment. Although I'm mighty interested.
Marco
06-10-2020, 19:01
info on the net suggest they are from the jj factory

Yes I already said that;)

Marco/
Marco
06-10-2020, 19:12
Also quite expensive! I think I'll wait until we hear a few reviews. I'll stick with my Genelex gold lions for the moment. Although I'm mighty interested.

Indeed, so some research is needed into whether there's any justification for that in terms of how they're constructed or anything else, other than simply having been measured and tested.

Marco.
Barry
06-10-2020, 20:35
The sceptic in me thinks they are cashing in on the Telefunken name. I would certainly await for some feedback from users.

Are they exact copies of the Telefunken build, or simply JJ equivalents that have been measured and labelled 'Telefunken'?


I have no horse in this race as I do not use a valve power amplifier (however I do have a Radford STA15 III, which has Telefunken and Siemens NOS small signal valves and NOS Mullard 'Blackburn Road' EL34s as well as a Mullard GZ34).
graham67
06-10-2020, 20:48
Yes a lot of money for JJs, and the construction doesnt look as good as quality NOS.
Ali Tait
06-10-2020, 21:03
Had a few JJ 300b’s and they have been excellent, rugged and long lasting.