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The E88CC-TK Black Diamond Series Preamp Tube from Telefunken is based on classic Telefunken and Siemens' tubes and is designed for use in phono or microphone preamps. It features gold pins, and produces a medium gain output, optimized for use in scenarios where ample clean headroom is desired. The E88CC is also known as the 6922.
Plate Voltage (in cold condition): 550 V Plate Voltage (when plate current = 0 mA): 400 V Plate Voltage: 220 V Plate Voltage (when plate dissipation <0.8 W): 250 V Grid Voltage: -100 V
Cathode Positive to Heater Negative Voltage: 120 V Cathode Negative to Heater Positive Voltage: 60 V