charveldan
Banned
New member
https://www.tubedepot.com/products/tele ... amond-el34
These are made by JJ in Slovak, anybody try these ?
These are made by JJ in Slovak, anybody try these ?
B
baron55
Active member
Just relabeled JJ power tubes, funny how they say increased grid (screen voltage) handling. Well if you look at the data sheets it is the same as the standard JJ tube. The grid voltage handling is 450v, just like the standard JJ tube. Just another revenue stream for JJ. Just like the New Sensor relabeling machine.
Basically cryogenically treated, which is snake oil and hand selected JJ tubes nothing new.
Here is their site
http://www.telefunken-elektroakustik.com/
They also will sell you a NOS set of Real Telefunken EL34's for a great price of 400.00
So the Black Diamond tubes are just JJ tubes that have been Cryo Treated, Burned in and supposedly hand picked as the best of the lot. Something tube vendors have been doing for a while.
Basically cryogenically treated, which is snake oil and hand selected JJ tubes nothing new.
Here is their site
http://www.telefunken-elektroakustik.com/
They also will sell you a NOS set of Real Telefunken EL34's for a great price of 400.00
So the Black Diamond tubes are just JJ tubes that have been Cryo Treated, Burned in and supposedly hand picked as the best of the lot. Something tube vendors have been doing for a while.