Tube-Town E83CC Preamp-Tube
High-quality 12AX7 / ECC83 / 7025 preamp tube with low background noise and reduced feedback tendency due to short anode plates, as well as a powerful bass and a dense sound. Very suitable for input stages with high amplification or amplifiers with generally high gain.
Dropin replacement for all 12AX7, ECC83, 7025, and E83CC tubes.
Electrical Characteristics
- Heater voltage (Uf): 6.3V or 12.6V
- Heater current (If): 300mA at 6.3V, 150mA at 12.6V
- Anode voltage (Ua): Maximum 300V
- Grid voltages (Ug1): -2V (typical)
- Grid voltages: -50V to 0V
- Anode current (Ia): 1.2mA (typical)
- Anode power dissipation: Maximum 1W per triode
- Anode resistance (ra): 62.5kΩ
- Amplification factor (μ): 100
- Transconductance (S): 1.6mA/V
- Input capacitance (Cin): 1.6pF
- Output capacitance (Cout): 1.6pF
Mechanical Characteristics
- Socket: B9A (Noval)
- Number of pins: 9
Pin Configuration
- 1 Anode (Triode 1)
- 2 Grid (Triode 1)
- 3 Cathode (Triode 1)
- 4 Heater (f)
- 5 Heater (f)
- 6 Anode (Triode 2)
- 7 Grid (Triode 2)
- 8 Cathode (Triode 2)
- 9 Center Heater (f)
Application Notes
- Heater operation: The tube can be operated with 6.3V or 12.6V, depending on the circuit design.
- Grid resistors: It is recommended to use grid resistors of at least 1MΩ to ensure stable functionality.
- Coupling capacitors: Capacitors with low capacitance (typically 0.1µF) are recommended to minimize high-frequency interference.
