JJ Electronic ECC83 / 12AX7 Preamplifier Tube
JJ Electronics 12AX7 Preamp Tube – Precision Tone for Audiophiles & Guitarists
Why Choose the JJ 12AX7 Preamp Tube?
With its warm, articulate tones, the JJ 12AX7 is a favorite among guitarists, recording studios and audio enthusiasts. Its exceptional build quality ensures low noise, long life and excellent response – making it ideal for tube amplifiers and preamp stages.
The JJ Electronics 12AX7 preamp tube is a high-gain dual triode tube renowned for its rich sound and reliable performance. Ideal for guitar amps, hi-fi audio systems, and other audio amplification setups, this tube delivers smooth, balanced sound with plenty of gain. Whether you’re a musician or an audiophile, the 12AX7 from JJ Electronics is the perfect solution for enhancing your sound quality.
Key Features:
• High Gain & Low Noise: The JJ 12AX7 is designed to offer maximum gain with minimal noise, providing clear, powerful sound without unwanted hum or distortion.
• Smooth Frequency Response: This tube delivers tight, punchy bass, clear mids, and a warm, detailed high-end, perfect for guitar amps or hi-fi systems.
• Durability & Reliability: Built to last, the 12AX7 can handle the rigors of both stage and studio use, ensuring long-lasting, consistent performance.
• Versatile Applications: Ideal for use in guitar preamps, hi-fi audio and vintage amplifier restorations.
The Technical Stuff:
• Base: NOVAL
• Uf = 6,3/12,6 V
• If = 300/150 mA
Typical Characteristics:
• Ua = 250 V
• Ug = -2 V
• Ia = 1,2 mA
• S = 1,6 mA/V
• Ri = 62,5 kΩ
• µ = 100
Capacitances:
• system I. system II.
• cg/k = 1,6 1,6 pF
• ca = 0,33 0,33 pF
• cg/a = 1,7 1,7 p
Based in the Slovak Republic, JJ Electronic is a world-renowned manufacturer of vacuum tubes, electrolytic capacitors and high-end audio amplifiers. Founded in 1993 by Jan Jurco, a small garage business has grown to become a well known and respected in music industry.
JJ vacuum tubes and capacitors are widely used in guitar and audio amplifiers, recording studio equipment and in a variety of applications for audiophiles.
JJ Electronic offer more than 35 preamp, power and rectifier tubes. All tubes have been developed by their in-house research and engineering teams. In addition, they manufacture electrolytic capacitors for different voltages, both radial and axial types. Today, JJ Electronics’ manufacturing program also includes a number of high-end audio and guitar tube amplifiers. Every one of their products are the result of diligent research in the audio field and its continual application into manufacturing.
Every component used in the production of vacuum tubes is manufactured in-house. This enables JJ Electronic to have complete quality control of every part of the manufacturing process. All materials used in tube and capacitor production undergo a meticulous cleaning process such as ultrasonic cleaning, annealing in protective atmosphere and reactive rinsing. The assembly process is carried out by a combination of meticulous manual operations and state-of-the-art production processes.
All vacuum tubes and capacitors go through an extended burn-in period to ensure superior stability. A rigorous final test for tubes and capacitors verifies every important parameter. In particular, the parameters for flawless tube functioning include insulation characteristics, vacuum level, cathode emission efficiency, filament voltage, plate currents, and microphonics. The quality control process includes several thousand hours of reliability testing on samples of tubes and capacitors.
The use of their own tubes and capacitors in their line of audio amplifiers, allows JJ Electronic to continually verify their quality and performance in practical everyday applications.
