JJ Electronics 12AT7 / ECC81 Replacement Amplifier Vacuum Tube

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Manufacturer's Description

The JJ Electronic 12AT7 / ECC81 is a good choice for phase inverters, reverb drivers, and general preamp use. This tube offers low noise, low microphonics, and warm smooth tones at a great price. Like all JJ tubes, it has a rugged construction that doesn’t compromise the sound of your amp. The JJ 12AT7 is a solid replacement for any 12AT7, ECC81, or 6201 tube. It can also be used to replace 12AX7 tubes in position 1 to reduce gain.

Specifications

• Body Height: 49.2 mm
• Cathode Current (Ik): ≤ 15 mA
• Filament Current (If): 300 / 150 mA
• Filament Voltage (Uf): 6.3 / 12.6 V
• Gain (μ): 60
• Grid Circuit Resistance (Rg): 1 MΩ
• Grid Voltage (Ug): ≥ -50 V, -2 V typical
• Heater to cathode voltage (Uk/f): ≤ 90 V
• Internal Resistance (Ri): 11 kΩ
• Item Diameter: 22 mm
• Item Height: 56.3 mm
• Plate Current (Ia): 10 mA
• Plate Dissipation (Wa): ≤ 2.5 W
• Plate Voltage (Ua): ≤ 300 V, 250 V typical
• Transconductance (S): 5.5 mA/V