Quote:
Originally Posted by jdandy
Glenn.......Telefunken Elektroakustik is the company name, a partnership with JJ tubes. The Telefunken Elektroakustik Black Diamond tubes are essentially JJ tubes that have been cryogenically treated, silk screened in black with the Telefunken logo, tube designation, and sold in Telefunken packaging. They are definitely not Telefunken old stock tubes made in Germany. These tubes are being manufactured in Slovakia.
I have not tried the Telefunken Elektroakustik Black Diamond tubes and probably will not due to JJ's reputation of short lived tubes. If they eventually prove themselves a worthy valve contender with positive reviews perhaps I will change my mind but for now I will continue to roll with Gold Lion.
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JJ's QC has really improved. I have had no issues with the KT77's.