12AX7/ECC803 TUNGSOL~~
Re-Issue Tung-sol 12ax7, now manufactured by Electro Harmonix at the reflector factory in Russia.

The Tung-sol 12ax7 tube they produce is of high standard. With balanced triods and low microphonics makes it a good choice in all pre-amp stages including the V1 position. We highly recommend these tubes The Ultimate 12AX7. Big, warm, and musical. High Gain, ultra-low microphonics, and superb linearity with a dynamic 3-D sound.

All pre-tested and guaranteed by Hot Rox UK~SELECT DISCOUNT|!84410|1 - 4|ECC803-TG|5+|ECC803-TG|~1885~9584~12ax7, tungsol~

12AX7 TUNGSOL~~
Re-Issue Tung-sol 12ax7, now manufactured by Electro Harmonix at the reflector factory in Russia.

The Tung-sol 12ax7 tube they produce is of high standard. With balanced triods and low microphonics makes it a good choice in all pre-amp stages including the V1 position. We highly recommend these tubes The Ultimate 12AX7. Big, warm, and musical. High Gain, ultra-low microphonics, and superb linearity with a dynamic 3-D sound.

All pre-tested and guaranteed by Hot Rox UK~SELECT DISCOUNT|!84410|1 - 4|12AX7-TUNG-REISSUE|5+|12AX7-TUNG-REISSUE|~1885~8843~12ax7, tungsol~

JJ Electronics Tube - Ecc81/12AT7~~~CHOOSE DISCOUNT QTY|ECC81-JJ|ECC81 JJ (1 - 4)|ECC81-JJ|ECC81/12AT7 JJ (5 - 9)|ECC81-JJ|ECC81/12AT7 JJ (10+)|ECC81-JJ|~1885~9080~ECC81 JJ~

JJ Electronics Tube - Ecc81/12AT7 GOLD~~~CHOOSE DISCOUNT QTY|ECC81-JJG|ECC81 JJ (1 - 9)|ECC81-JJG|ECC81/12AT7 JJ (10+)|ECC81-JJG|~1885~9079~ECC81 JJ~

JJ Electronics Tube - Ecc82/12AU7~~~ecc82 JJ|ECC82-JJ|~1885~9078~ECC82 JJ~

JJ Electronics Tube - Ecc803s~~~JJ Electronics Tube - Ecc803s|ECC803-JJ|~1885~9077~ECC81 JJ~

JJ Electronics Tube - ecc83s/12AX7~~Great 12AX7 for blues/rock players
This tube clips slightly earlier than other 12ax7's giving you that edge.~CHOOSE DISCOUNT QTY|ECC83-JJ|Ecc83JJ - 1+|ECC83JJ1|Ecc83JJ - 5+|ECC83JJ5|Ecc83JJ - 10+|ECC83JJ10|~1885~9098~ECC83 JJ~

JJ Electronics Tube - ecc83s GOLD PIN~~NEW GOLD PIN VERSION

The JJ Gold Pin, has a very warm smooth sound. They're also very low in microphonics and the double triods are very balanced. This makes the JJ ecc83 Gold a great option for the V1 position in high gain amps.

A high performance tube from JJ Electronics, keeping standards high and with the extra burn in and drive testing from Hot Rox UK, these are a great Investment for musicians who demand the best.~Ecc83s GOLD PIN|ECC83-JJ-GOLD-PIN|~1885~9075~ECC83 JJ~

Electro Harmonix - 12AX7 GOLD~~High Grade 'GOLD PIN' version of 12AX7EH~12AX7 EHG|12AX7EHG|~1885~8837~12AX7, GOLD, EH VALVES, TUBES~

Electro Harmonix - 12AX7 EH~~The 12AX7EH provides high gain with ultra low noise and detailed, musical tone that rivals the most desirable NOS types. Unique spiral filament eliminates filament to cathode induced hum common on amps that use AC on the filaments.~12AX7 EH|12AX7EH|~1885~8838~~

Electro Harmonix - 5751 GOLD~
Low gain 12ax7~
5751 has less gain than a 12ax7 and will give you more headroom and a cleaner sound, especially when used in the main driver position. These can be used as a direct replacement for a 12ax7/ecc83.~5751 EH GOLD|5751EHG|~1885~8836~5751, VALVE, EH, 12AX7~

Mesa Boogie
12AX7A~~Standard Boogie 12AX7~MESA 12AX7A|MESA-12AX7A|~1885~8649~~

Mesa Boogie
SPAX7-A~~Special low noise Boogie 12AX7
Designed for main driver position~SPAX7A|MESA-SPAX7A|~1885~8648~~

Groove Tube - 12AX7M~The new GT12AX7M is as close to an exact reissue of the original Mullard 12AX7/ECC83 dual triode preamp tube as we could develop.
~The new GT12AX7M is as close to an exact reissue of the original Mullard 12AX7/ECC83 dual triode preamp tube as we could develop. Some people feel this is one of the ultimate vintage 12AX7 tubes.

The Groove Tubes 12AX7M is a dual-triode vacuum tube based on the highly sought after Mullard 12AX7, which went out of production in the late 60's.

Its unique triple mica design reduces tube hum and microphonics, and gives performance stability under the most demanding conditions, such as high gain tube guitar amps sitting on 4x12 cabs.

This tube delivers rich, harmonically complex tone and midrange warmth that is just not available in any other currently manufactured tube today.

The new 12AX7M is an excellent choice as a replacement tube for any amplifier design using a 12AX7, ECC83, or 7025 preamp tube. “Of course, the real test is how it sounds,” continued Pittman. “Our new 12AX7M will really ‘wake up' an old (or new) Fender, Ampeg, or Marshall tube amp!”~12AX7M*********SOLD OUT**********|GT-12AX7M|~1885~9152~mullard, 12ax7, ecc83, groove tubes, vacuum tubes,~

Groove Tube - 5751M~This is a lower gain 12AX7 tube type. Stevie Ray Vaughn used these to change his front end distortion to back end distortion ratio to have more of the touch sensitive output tube distortion.~This is a lower gain 12AX7 tube type. Stevie Ray Vaughn used these to change his front end distortion to back end distortion ratio to have more of the touch sensitive output tube distortion.

These test as per 5751 spec with the proper transconductance and current output.

The slightly lower gain quiets many amps down and these are a very smooth front end tube but are also quite amazing in the phase inverter position.

In the Fender Hot Rod series these are really the rage these days with many of GT's folks that use these amps~5751M|GT-5751M|~1885~9151~mullard, 12ax7, ecc83, groove tubes, vacuum tubes,~

Groove Tube - 12AX7-R~New tube from Russia. Slightly lower gain, quicker compression than GT 12AX7.~New tube from Russia. Slightly lower gain, quicker compression than GT 12AX7.~12AX7R|GT-12AX7-R|~1885~9658~valves, vacuum tube, 12ax7,ecc83, groove tube~

Groove Tube - 12AX7-R3~The 3rd offering from the same Russian tube factory that builds the R1 and R2, but this one has medium sized plates and a nice balanced tone. Good midrange and average gain.~The 3rd offering from the same Russian tube factory that builds the R1 and R2, but this one has medium sized plates and a nice balanced tone. Good midrange and average gain. Like all Russian preamp tubes, the sound is a bit lacking in treble area, which is one reason the have a low microphonics and do not feedback or ring as much.~12AX7R3|GT-12AX7R3|~1885~9150~mullard, 12ax7, ecc83, groove tubes, vacuum tubes,~

Groove Tube - 12AX7-C~~A new offering from China, warm round and fat tone, not too bright. A Chinese version of the 12AX7-C. Great for Marshalls and Fenders. Sweet warm mid range tone, complements tone of European amps. A tube that takes some of the edge off of high gain amps by reducing the brightness while still having the gain and articulation. For those that change first stage gain preamp tubes to change the taste and character of their amps (remember, this can be done in less than a minute without tools, adjustments, or a "tech"). This is one tube that should be in your basic toolbox. The basic tube sets generally are the 12AX7C, ECC83, and 7025 to cover a wide range of styles and tastes for most amplifiers.~GT -12AX7-C|GT-12AX7C|~1885~9149~mullard, 12ax7, ecc83, groove tubes, vacuum tubes,~

Groove Tube - ecc83s~Classic Euro type with medium to high gain and a linear frequency response. Very clear even tone with good bass character.~Classic Euro type with medium to high gain and a linear frequency response. Very clear even tone with good bass character. This is the standard tube that was used in Marshall amplifiers and Vox amplifiers. For those that change first stage gain preamp tubes to change the taste and character of their amps (remember, this can be done in less than a minute without tools, adjustments, or a "tech"). This is one tube that should be in your basic toolbox. The basic tube sets generally are the 12AX7C, ECC83, and 7025 to cover a wide range of styles and tastes for most amplifiers.~GT ECC83s|GT-ecc83s|~1885~9148~mullard, 12ax7, ecc83, groove tubes, vacuum tubes,~

Groove Tube - 12AT7~This tube is used widely in most of the US-made amps…~This tube is used widely in most of the US-made amps and, in particular, the Fender amps. Fender amps with reverb use two 12AT7s - one for the reverb drive stage, and one used as a phase inverter to drive the push/pull output stage.
The 12AT7s make-up is very similar to the 12AX7 and can be substituted for a 12AX7 in a pinch, although it won't sound very good. Some players do prefer to use the 12AT7 in the driver stage in a Marshall for a cleaner, brighter tone. (The driver or phase inverter is the 12AX7 located nearest the power tubes.)
The 12AT7 is rarely used in a tone-generating stage, but rather in function stages, so our GT-12AT7 is selected for durability. The GT 12AT7 tube will some times bear the number 6201 as well as 12AT7. This is a special (and more expensive) production run with a rugged construction. The GT-12AT7 is tested under extreme listening conditions and guaranteed to be free of excess noise and microphonic ring.~GT 12AT7|GT-12AT7|~1885~9153~mullard, 12AT7 groove tubes, vacuum tubes,~

Groove Tube - 12AU7~will yield the most clean headroom in many amps.~These are commonly used as phase inverters in McIntosh Hi-Fi amps, some Ampeg amps, and will yield the most clean headroom in many amps.
In the latest Fender Pro Series amps such as the Pro Reverb, Concert, and Twin, this tube in V2 (or a 12AY7), will drop the gain of the gain channel where some feel the tone is of a less intense or “buzzy” character. This will then allow a much wider range in the sweep of the volume and gain controls of this channel.~GT-12AU7|GT-12AU7|~1885~9154~mullard, 12AT7 groove tubes, vacuum tubes,~

12AX7WA USA~~~12AX7WA USA|12AX7USA|~1885~8650~~