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JJ 12AU7 / ECC82 Selected GOLD

ECC82 / 12AU7 medium gain pre-amplifying double triode.
Provides a very smooth sound with well-defined tones suitable for audio and guitar amplifiers.

Gold-Version:
All JJ 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 famous and well known JJ brownsound - warm and smooth.

Files:

Datasheet

Safety Information

Safety Information for Vacuum Tubes

For all electrical, electromechanical and mechanical components, the specifications and operating parameters arising from the respective type standard generally apply.
Further information, where available, can be found in the respective data sheets and product descriptions included with the product.

General Information

NOT SUITABLE FOR CHILDREN - choking hazard due to small parts
NOT SUITABLE FOR UNTRAINED PERSONS - danger to life due to high voltages
The safety and processing requirements applicable to the component must be observed
CE conformity applies only when installed professionally
Warranty becomes void in case of improper handling
The operator is responsible for proper installation
Local regulations and VDE provisions must be complied with
Never exceed the rated power
Never exceed the rated voltages and currents

Required Expertise

Use of measuring instruments (multimeter, oscilloscope) and evaluation of measurement results
Safe handling of high voltages (up to 500V and more)
Reading and understanding circuit diagrams
Selection of appropriate tools
Knowledge of electrical components and their characteristics
First-aid knowledge for electrical accidents
Knowledge of VDE regulations and safety requirements

Amplifier Tubes

Hazard due to high voltages
Hazard due to very high heat generation
Hazard due to glass breakage
Hazard due to UV radiation in case of defective tubes

Manufacturer

Herstellerinformationen | Manufacturer Information
JJ Electronic
A. Hlinku 3
022 01 ČADCA
Slowakische Republik
www.jj-electronic.com

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Files:

Datasheet

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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.

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