12AT7 / ECC81

EH 12AT7 / ECC81
Superior large plate format Twin Triode, ideal for use in driver and reverb circuits. Offers superior dissipation compared to NOS versions of this tube.
Excellent 12AT7 choice choice for HiFi and guitar amp circuits.
Electro-Harmonix tubes are all new designs and are of excellent quality. Many OEMs use relabeled Electro-Harmonix vacuum tubes in their amplifiers. If you want great sounding tubes at a very reasonable price, then Electro-Harmonix tubes should be on your list.

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16,50 €

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EH 12AT7 / ECC81 - Balanced

TT Selection: Balanced
Both systems with balanced gain

Large Plate 12AT7 / ECC81

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22,50 €

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EH 12AT7 / ECC81 Gold
  • Large Plate 12AT7 / ECC81
  • Gold-Pins

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31,90 €

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EH 12AT7 / ECC81 V1

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

Large Plate 12AT7 / ECC81

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22,50 €

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Genalex 12AT7 / ECC81 Reissue
NEW
Genalex Gold Lion 12AT7 / ECC81 - Reissue

Super-Premium Gold Pins Twin Triode with a large detailed soundstage characterized by an expressive midrange, deep tight bass, and a smooth extended high end. The reissue Genalex Gold Lion ECC81/B739 faithfully recreates the sound signature of the original, which is considered the best and rarest 12AT7 type ever made. With Balanced triode sections
45,90 €

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JJ 12AT7 / ECC81

JJ's version of the ECC81/12AT7 tube type with a warm and soft sound. Often used for phase inverters or reverb drivers.

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14,80 €

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piece:
 
JJ 12AT7 / ECC81 Balanced

TT Selection: Balanced
Both systems with balanced gain

JJ's version of the ECC81/12AT7 tube type with a warm and soft sound. Often used for phase inverters or reverb drivers.

Files:

19,35 €

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piece:
 
JJ 12AT7 / ECC81 Selected GOLD

All JJ gold preamp tubes are selected within a close tolerance and handtested for best sound and quality. Furthermore all pins are gold plated to achieve best electrical contact.
What about the sound ? It is still the famouse and well known JJ brownsound - warm and smooth.

Files:

30,00 €

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piece:
 
JJ 12AT7 / ECC81 V1

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

JJ's version of the ECC81/12AT7 tube type with a warm and soft sound. Often used for phase inverters or reverb drivers.

Files:

19,35 €

incl. VAT excl. Shipping costs
piece:
 
Mullard 12AT7 / ECC81 Reissue
NEW
Mullard 12AT7 / ECC81 Reissue, Made in Russia
38,00 €

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piece:
 
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.
14,20 €

incl. VAT excl. Shipping costs
piece:
 
TT 12AT7 / ECC81 - Balanced
TT Selection: Balanced
Both systems with balanced gain


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.
18,20 €

incl. VAT excl. Shipping costs
piece:
 
TT 12AT7 / ECC81 - Classic V1
TT Selection: V1 - Low Noise
This tube is selected for sensitive input stages (V1)


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.
18,20 €

incl. VAT excl. Shipping costs
piece:
 
Tung-Sol 12AT7W / 6201 Reissue

Premium Twin Triode ideal for use in reverb and driver circuits. Superior dissipation compared to NOS versions of this tube.

  • Extra-low microphonics makes it the best 12AT7 choice for reverb circuits. Also suitable for HiFi.
  • Factory selected for closest tolerances and most consistent performance
  • ECC81 equivalent
22,85 €

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piece:
 
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