Best 12ax7a Tube

Category: tube 👁 535 👍 31 ★★★★☆4

12AX7 tube is a small signal dual-triode vacuum tube found in just about every tube gear today. ... The high gain factor and the dual-triode configuration allows the tube amp designer to build an amplifier with fewer components. The 12AX7 tube is used in the majority of guitar and audio tube amps today for this reason.

Moreover, are Tung Sol tubes good?

Tung-Sol 12AX7 delivers good gain, but without washing out the fine details and textures. It is a great all-rounder. When in doubt, we start with Tung-Sol 12AX7. TungSol 12AX7 handles everything from vintage rock to a clean tone sound.

In any case, is ecc83 the same as 12ax7? The ECC83 Valve – also known as the 12AX7. The 12AX7 Valve (or 12AX7 vacuum Tube) is a small preamplifier valve which is identical to the ECC83same valve, just a different name. It has two identical triodes both of which have a high voltage gain. It is used in 99% of all guitar amplifiers.

Apart from this, can a 12au7 replace a 12ax7?

You can interchange a 12AX7 with 12AT7, 12AU7, 12AY7 or 5751 as they are all the same pin structure, however they will each give you a different result in your amp. Each of these tubes has a different gain factor, which means some will give higher gain and others lower gain.

What is the difference between 12ax7 and 12at7?

The 12AT7 has a much higher plate currents and transconductance than a 12AX. A 5751 is much more similar to a 12AX7, but with lower gain (70%). They can pass much the same amount of current. 12AT7's can sound very "thin" in many amp circuits designed for AX7's.

BESTSELLER NO. 1 in 2021

JJ 12AX7 / ECC83 Preamp Vacuum Tubes (Three Pack)

JJ 12AX7 / ECC83 Preamp Vacuum Tubes (Three Pack)
  • This tube has a well balanced, colorful tone with strongly defined lows, mids and smooth highs
  • It allows for more clean head-room than higher gain 12AX7s
  • In overdrive, it is smooth and strong with well defined lows and mids
  • When pushed into overdrive it offers clean distortion with well balanced lows and mids
  • The JJ 12AX7 is well suited for all types of music and playing styles
BESTSELLER NO. 2 in 2021

Mullard 12AX7/ECC83, Matched Pair

Mullard 12AX7/ECC83, Matched Pair
  • Smooth tone
  • Large plates
  • Matched Pair (2 tubes)
  • Comes with factory boxes
  • Pair is matched within 10% for both gain and conductance
BESTSELLER NO. 3 in 2021

JJ Electronics Amplifier Tube (T-12AX7-S-JJ)

JJ Electronics Amplifier Tube (T-12AX7-S-JJ)
  • 12AX7 vacuum tube,
  • U.S. Product Code: 12AX7
  • European product Code: ECC83
  • For guitar and Hi-Fi amplifiers,
  • Can be used in any preamp or microphone application
BESTSELLER NO. 4 in 2021

Pair of JJ ECC83s/12AX7 Preamp Vacuum Tube

Pair of JJ ECC83s/12AX7 Preamp Vacuum Tube
BESTSELLER NO. 5 in 2021

Electro-Harmonix 12AX7 / ECC83 Preamp Vacuum Tubes (Three Pack)

Electro-Harmonix 12AX7 / ECC83 Preamp Vacuum Tubes (Three Pack)
  • This Russian tube is full bodied and bright with a more straightforward presentation
  • It packs a lot of bite with its higher-than-normal gain
  • In overdrive, it offers a lot of crunchy fizz
  • For more information about our 12AX7 tubes, see our tech corner article on 12AX7s.
BESTSELLER NO. 6 in 2021

Fender Groove Tubes GT-12AY7 Select Amplifier Tube

Fender Groove Tubes GT-12AY7 Select Amplifier Tube
  • 9-pin triode design
  • Lower gain than 12AX7
  • Great for harp and blues guitar
  • Thoroughly tested
  • Warranty Included
BESTSELLER NO. 7 in 2021

Electro-Harmonix 12AX7, Matched Pair

Electro-Harmonix 12AX7, Matched Pair
  • Matched Pair
  • Matched for both gain and conductance
  • Spiraled filament allowing for reduced noise
  • Great value
BESTSELLER NO. 8 in 2021

Three Pack of JJ ECC83s/12AX7 Preamp Vacuum Tube

Three Pack of JJ ECC83s/12AX7 Preamp Vacuum Tube
BESTSELLER NO. 9 in 2021

Mullard 12AX7/ECC83, Matched Quad

Mullard 12AX7/ECC83, Matched Quad
  • Smooth tone
  • Large plates
  • Matched Quad (4 tubes)
  • Comes with factory boxes
  • Quad is matched within 10% for both gain and conductance
BESTSELLER NO. 10 in 2021

Tung-Sol 12AX7 Preamp Vacuum Tube, Single

Tung-Sol 12AX7 Preamp Vacuum Tube, Single
  • Performance which surpasses NOS original in all areas. Big, warm and very musical. Superb linearity with a dynamic 3-D sound.
  • Preferred by guitar technicians for re-tubing and upgrading. Equally well suited for HiFi applications
  • Single tube
  • 7025/ECC83 equivalent

3 More Questions Answered

How do I choose guitar amp tubes?

For those just looking for a new set of tubes to get your amp back up and running, look into the tubes the amp came with and start from there. If you want the same sound, get the same or very similar tubes. If you want to experiment, try other brands or styles of the same type of tube.

What does amp bias mean?

What is amp bias? Tube Amp Bias is an electronic process that ensures the power amp tubes in your valve amp run at their optimimum capacity so that you can get the best possible guitar tone out of them. It ensures the tubes are fed the correct voltage according the valves resistance rating.

How long should I let my tube amp warm up?

one minute