Telefunken Black Diamond Vacuum Tubes
Black Diamond Series Vacuum Tubes
TELEFUNKEN vacuum tubes have been the benchmark of excellence in all audio applications, both production and reproduction, for many decades. This rich history continues with the introduction of new production tubes from TELEFUNKEN Elektroakustik, in partnership with JJ Tubes from the Carpathian Mountains of Cadca in Slovakia.
Each tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All TELEFUNKEN branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name TELEFUNKEN Elektroakustik has become synonymous.
addition to the rigorous testing procedure, all new production
TELEFUNKEN tubes are cryogenically treated to ensure durability, and
subjected to an extended burn-in period to ensure superior stability.
The tubes are re-measured subsequent to burn-in in order to guarantee
that only the best, lowest noise tubes are offered for purchase through
your TELEFUNKEN Elektroakustik reseller Chuck's Electronic Service.