TT 12AX7 / ECC83 Classic
TT 12AX7 / ECC83 Classic

TT 12AX7 / ECC83 Classic

Product No.:
tt12ax7
In stock for immediate delivery. Delivery time depends on the destination country* In stock for immediate delivery. Delivery time depends on the destination country*
RoHs:
conform
Weight:
0.016 kg per piece
19,50 €

incl. VAT excl. Shipping costs

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Psvane 12AX7 / ECC83 - Classic Series
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Dropin replacement for all 12AX7, ECC83 and 7025 tubes.

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Old price: 17,50 €
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Offer valid until: 16.06.2026"
Tung-Sol 12AX7 / ECC83 Reissue V1

TT Selection: V1 - Low Noise
This tube is selected for sensitive input stages (V1)

The Ultimate 12AX7. Big, warm, and musical. High Gain, ultra-low microphonics, and superb linearity with a dynamic 3-D sound.

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TT Selection: V1 - Low Noise
This tube is selected for sensitive input stages (V1)

Psvane 12AX7 / ECC83 preamp tube from the Classic series with red logo.
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[content:3210145]
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Psvane 12AX7 / ECC83 - Classic Series - Balanced

TT Selection: Balanced
Both systems with balanced gain

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Drop-in replacement for all 12AX7, ECC83 and 7025 tubes.

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Customers who bought this product bought also the following products:

TT 12AT7 / ECC81
Warm and balanced overall sound, paired with high resolution and brilliance, which is why the TT12AT7 achieves the best results in both instrumental and audio/high-end amplifiers.

Features:
  • Warm and balanced sound
  • Excellent sound resolution and brilliance
  • Ideal for instrumental and audio/high-end amplifiers

Hint;
Often, 12AU7 and 12AT7 types are used instead of 12AX7 tubes in order to either reduce the overall power of the amplifier or just take back the overdrive of the preamp. Especially the 12AU7 brings a very large tonal difference compared to a 12AX7, which is usually much greater than when switching from a 12AX7 to 5751 or 12AT7.

When using a 12AU7 in a driver stage that is normally designed for 12AX7, the overall power of the power amp is usually reduced. How big this difference is depends on the amplifier or circuit. For example, a Marshall with a 12AX7 in the phase inverter stage set to volume 5 will then reach the same volume with a 12AU7 set to volume 6 (perceived volume, not measured).

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 Voltage (Ug1): -2V (typical)
  • Anode Current (Ia): 10mA (typical)
  • Anode Power Dissipation: Maximum 2.5W per triode
  • Anode Resistance (ra): 11kΩ
  • Amplification Factor (μ): 60
  • Transconductance (S): 5.5mA/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 either 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 operation.
  • Coupling Capacitors: Capacitors with low capacitance (typically 0.1µF) are recommended to minimize high frequency disturbances.
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F+T 100 µF @ 500 Volt, axial
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  • Capacitance: 100 µF
  • Voltage Rating: 500 V
  • Tolerance: +/- 20%
  • Operating Temperature Range: - 40°C / + 85 °C
  • Dimensions: Ø 30 mm x 49 mm
  • Termination Style: axial
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F+T 47 µF @ 450 Volt, axial
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  • Capacitance: 47 µF
  • Voltage Rating: 450 V
  • Tolerance: - 20 % / +20 %
  • Operating Temperature Range: - 40°C / + 85 °C
  • Dimensions: Ø 18 mm x 39 mm
  • Termination Style: axial
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F+T 47 µF @ 500 Volt, axial
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  • Capacitance: 47 µF
  • Voltage Rating: 500 V
  • Tolerance: +/- 20%
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TT Trainwreck Express Style Powertransformer
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  • Primary: 120-230V-240V @ 50Hz
  • Secondary HT and bias, 300V-50V-0-300V @ 300mA
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EH 12AX7 / ECC83
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