Tube 6922/E88CCJJ – JJ

R.F. DOUBLE TRIODE
E88CC is the European Name of 6922/6DJ8. It is often used for Hi-Fi applications. It provides very smooth mids and high end with a lot of detail.

Specifications

• Base: NOVAL
• Heater Voltage (Uf): 6.3 V
• Heater Current (If): 300 mA

Typical Characteristics:

• Anode Voltage (Ua): 90 V
• Control Grid Voltage (Ug): -1.3 V
• Anode Current (Ia): 15 mA
• Transconductance (S): 12.5 mA/V
• Internal Resistance (Ri): 2.6 kΩ
• Amplification Factor (µ): 33

Capacitances:

• System I:
  • Grid to Cathode Capacitance (cg/k): 3.1 pF
  • Anode Capacitance (ca): 0.18 pF
  • Grid to Anode Capacitance (cg/a): 1.4 pF
• System II:
  • Grid to Cathode Capacitance (cg/k): 3.1 pF
  • Anode Capacitance (ca): 0.18 pF
  • Grid to Anode Capacitance (cg/a): 1.4 pF

Limiting Values:

• Maximum Anode Voltage (Ua0): 550 V
• Maximum Anode Voltage (Ua) at Ia = 0: 400 V
• Maximum Anode Voltage (Ua): 220 V
• Maximum Anode Voltage (Ua) with Power Dissipation < 0.8 W: 250 V
• Maximum Anode Dissipation (WaR): 1.5 W
• Maximum Grid Dissipation (Wg1R): 0.03 W
• Maximum Cathode Current (Ik): 20 mA
• Maximum Control Grid Voltage (Ug): -100 V
• Grid Resistor (Rg): 1 MΩ
• Maximum Cathode to Heater Voltage (U+k/f-): 120 V
• Maximum Cathode to Heater Voltage (U-k/f+): 60 V
• Cathode to Heater Resistance (Rk/f): 20 kΩ