12AX7 - ECC83 - 5751 - 7025
Possibly the most popular preamp tube on the planet, the 12AX7 series offers almost unlimited options.
Compatible Equivalents & Substitutes: 12AX7, 12AX7A, 12AX7EA, 7025, ECC83, ECC803S, 5751 (low gain), CV492, 7058, 12DF7, CV4004, B339, E83CC, M8137.
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New TAD ECC83-Cz / 12AX7 Premium Selected Vacuum Tube
TAD
$39.27New Gain Tested Tube Amp Doctor ECC83-Cz Premium Selected Vacuum Tube A wonderful tube with an emphasis of warm tones, lows, mids, overdrive and even highs. The A-Frame construction makes this an exceptionally low noise tubes, perfect for high gain...NP233-1$39.27 -
Matched Trio (3) White Boxed Sovtek 12AX7WA / 7025 Vacuum Tubes
$59.95New Late 2000's Stock White Boxed Gain Matched Trio of Sovtek 12AX7WA / 7025 Vacuum Tubes Vacuum tubes from Sovtek have long been considered top-shelf, and for good reason. They are tonally rich, robustly engineered, and well-suited for the demanding...MUL173-3$59.95 -
Matched Pair (2) White Boxed Sovtek 12AX7WA / 7025 Vacuum Tubes
$39.95New Late 2000's Stock White Boxed Gain Matched Pair of Sovtek 12AX7WA / 7025 Vacuum Tubes Vacuum tubes from Sovtek have long been considered top-shelf, and for good reason. They are tonally rich, robustly engineered, and well-suited for the demanding...MUL173-2$39.95 -
New JJ 12AX7 / ECC83 Gold Pins Vacuum Tube
JJ Electronic
$43.55New Gain Tested JJ 12AX7 Gold Pins Vacuum Tube The gold pin version of the JJ 12AX7 also uses the A-frame construction with boxed plates for utmost stability and reliability. This ensures lower noise for audio applications. Excellent choice for any high...NP204-1$43.55 -
New Matched Trio (3) Psvane Hifi 12AX7 / ECC83 Vacuum Tubes
Psvane
$50.58New Gain Matched Trio of Psvane 12AX7 Standard Pins Vacuum Tubes These are part of the standard hifi series from Psvane offering excellent tone without breaking the bank. You can expect a rich and natural tone - a true workhorse tube. Unlike other...NP201-3$50.58 -
New Matched Pair (2) JJ 12AX7-MG / ECC83-MG Mid Gain Vacuum Tubes
JJ Electronic
$52.77New Gain Matched Pair of JJ 12AX7-MG Mid Gain Vacuum Tubes A more mild-mannered version of the standard 12AX7, this mid-gain tube is between a 12AX7 and a 5751. Full, rich mids and low noise/microphonics. Great for applications that call slightly less...NP200-2$52.77 -
New Telefunken Black Diamond 12AX7 / ECC83-TK Gold Pins Vacuum Tube
Telefunken
$61.27New Factory Tested Telefunken Black Diamond ECC83-TK (12AX7) Vacuum Tube A well-balanced tube suited for all types of music and playing styles. Designed to allow for cleaner headroom than higher gain 12AX7s when pushed into overdrive, it offers...NP180-1$61.27 -
New Genalex Gold Lion CV4004 / 12AX7 Vacuum Tube
Genalex
$58.36New Genalex Gold Lion CV4004 Short Plate Vacuum Tube Genalex Gold Lion is the flagship brand among Electro-Harmonix products and it’s no wonder. They started by offering the standard long plate 12AX7/B759 which, while an excellent tube, tends to be...NP197-1$58.36 -
New Matched Pair (2) Electro-Harmonix 7025 (12AX7) Vacuum Tubes
Electro-Harmonix
$56.20New Gain Matched Pair of Electro-Harmonix 7025 (12AX7) Vacuum Tubes Electro-Harmonix has released a low noise, low microphonic version of the 12AX7 that meets all specifications required for the tube to be designated 7025. The original 7025 tube was a...NP195-2$56.20 -
New Psvane 12AX7-S Art Series Gold Pins / ECC83 Vacuum Tube
Psvane
$41.61New Gain Tested Psvane 12AX7-S Art Series Gold Pins Vacuum Tube The Psvane 12AX7-S is part of their new Art Series from Psvane. The much loved 12AX7-T MKII has been upgraded with better materials to improve the sound. You can expect a very rich, detailed...NP182-1$41.61 -
New Tung-Sol 5751 Gold Pins Vacuum Tube
Tung-Sol
$44.24New Gain Tested Tung-Sol Reissue 5751 Gold Pins Vacuum Tube Being modeled after the original quality of vintage Tung-Sol tubes, the 5751 offers great reliability. The 5751 is a great drop-in replacement of any 12AX7, offering about 30% less gain than...NP139-1$44.24 -
New Tung-Sol 5751 Vacuum Tube
Tung-Sol
$39.02New Gain Tested Tung-Sol Reissue 5751 Vacuum Tube Being modeled after the original quality of vintage Tung-Sol tubes, the 5751 offers great reliability. The 5751 is a great drop-in replacement of any 12AX7, offering about 30% less gain than their 12AX7...NP138-1$39.02 -
New Matched Pair (2) Sovtek 12AX7WC / 7025 Vacuum Tubes
Sovtek
$57.08New Gain Matched Pair of Sovtek 12AX7WC / 7025 Vacuum Tubes Vacuum tubes from Sovtek have long been considered top-shelf, and for good reason. They are tonally rich, robustly engineered, and well-suited for the demanding audiophile or musician. The...NP122-2$57.08 -
New Matched Pair (2) Sovtek 12AX7WB / 7025 Vacuum Tubes
Sovtek
$62.86New Gain Matched Pair of Sovtek 12AX7WB / 7025 Vacuum Tubes Vacuum tubes from Sovtek have long been considered top-shelf, and for good reason. They are tonally rich, robustly engineered, and well-suited for the demanding audiophile or musician. The...NP121-2$62.86 -
New Matched Pair (2) Sovtek 12AX7WA / 7025 Vacuum Tubes
Sovtek
$47.36New Gain Matched Pair of Sovtek 12AX7WA / 7025 Vacuum Tubes Vacuum tubes from Sovtek have long been considered top-shelf, and for good reason. They are tonally rich, robustly engineered, and well-suited for the demanding audiophile or musician. The...NP120-2$47.36 -
![Gain Matched Pair (2) Svetlana 12AX7 ECC83 [Winged =C= SED Reissue] Vacuum Tubes](https://cdn11.bigcommerce.com/s-dfccaj35/images/stencil/350x350/products/44578/45913/NP117-2__00735.1652816771.JPG?c=2 "Gain Matched Pair (2) Svetlana 12AX7 ECC83 [Winged =C= SED Reissue] Vacuum Tubes")
New Matched Pair (2) Svetlana 12AX7 Vacuum Tubes
Svetlana
$58.45New Gain Matched Pair of Svetlana 12AX7 / ECC83 Vacuum Tubes Svetlana vacuum tubes are among the best available at any price point, and are a great choice for anyone looking for high fidelity and reliability. Famous for a smooth balance of gain and low...NP117-2$58.45 -
New Tung-Sol 12AX7 / ECC803S GOLD PINS Vacuum Tube
Tung-Sol
$39.84New Gain Tested Tung-Sol 12AX7 / ECC803S GOLD PINS Vacuum Tube These tubes are high gain, low noise, and are VERY warm and detailed.The filaments are almost completely encased within the plates so they don't light up much, but it effectively helps to...NP081-1$39.84 -
New Matched Pair (2) JJ 5751 Low Gain Vacuum Tubes
JJ Electronic
$52.58New Gain Matched Pair of JJ 5751 Low Gain Vacuum Tubes The JJ 5751 can be used in most 12AX7 circuits to help stave off early break-up. With a lower gain than a standard 12AX7, the 5751 can help reign in a high gain amplifier. Specifically modeled after...NP074-2$52.58 -
New Matched Pair (2) JJ ECC803S High Gain Vacuum Tubes
JJ Electronic
$51.14New Gain Matched Pair of JJ ECC803S Vacuum Tubes The JJ EC803S (Long Plate 12AX7) is a high gain tube. The long plates make for higher gain and a warmer, fuller tone. They also increase the chance of microphonics so these are best used in guitar...NP049-2$51.14 -
New Matched Pair (2) Tung-Sol 12AX7 / ECC83 Reissue Vacuum Tubes
Tung-Sol
$49.59New Gain Matched Pair of Tung-Sol 12AX7 / ECC83 Reissue Vacuum Tubes The Tung-Sol 12AX7 is one of the very best new production 12AX7 models offered. These tubes are high gain, low microphonics and are VERY warm and detailed. You'll get true 3D sound with...NP045-2$49.59 -
New Matched Pair (2) Mullard CV4004 / 12AX7 Reissue Vacuum Tubes
Mullard
$52.41New Gain Matched Pair of Mullard CV4004 / 12AX7 Vacuum Tubes Out of the two variations of Mullard's 12AX7 model, this tube (CV4004) is particularly great for guitar amplifiers. The CV4004 is the military designation for the 12AX7 and is its...NP035-2$52.41 -
New Matched Trio (3) JJ 12AX7 / ECC83S Vacuum Tubes
JJ Electronic
$50.13New Gain Matched Trio of JJ Electronic (Tesla) 12AX7 / ECC83S Vacuum Tubes The JJ 12AX7 / ECC83S tubes are one of the most popular new production 12AX7s ever made. There is a reason major brands such as Fender and Marshall come with them as stock tubes...NP030-3$50.13 -
New Matched Pair (2) Mullard Reissue 12AX7 Vacuum Tubes
Mullard
$52.41New Gain Matched Pair of Mullard Reissue 12AX7 Vacuum Tubes The Mullard 12AX7 is a versatile tube for many amplifiers like the Fender Deluxe line and more. They are also great for Hi-Fi stereo amplifiers. Producing a smooth tone, they have a surprisingly...NP028-2$52.41 -
On Sale
New Matched Quad (4) Electro-Harmonix 12AX7 Vacuum Tubes
Electro-Harmonix
Now: $62.37Was: $83.16New Gain Matched Quad of Electro-Harmonix 12AX7 Vacuum Tubes The EHX 12AX7 has become a standard, known for it's high gain and excellent mids and bass. It has a spiral wound filament to help cut down on noise and hum just like the vintage 7025 or 12AX7A...NP027-4Now: $62.37Was: $83.16 -
On Sale
New Matched Trio (3) Electro-Harmonix 12AX7 Vacuum Tubes
Electro-Harmonix
Now: $47.26Was: $63.01New Gain Matched Trio of Electro-Harmonix 12AX7 Vacuum Tubes The EHX 12AX7 has become a standard, known for it's high gain and excellent mids and bass. It has a spiral wound filament to help cut down on noise and hum just like the vintage 7025 or 12AX7A...NP027-3Now: $47.26Was: $63.01 -
New Genalex Gold Lion 12AX7 / ECC83 / B759 Gold Pin Reissue Vacuum Tube
Genalex
$56.54New Genalex Gold Lion 12AX7 / ECC83 / B759 Gold Pin Vacuum Tube These are so close to the originals we could hardly tell the difference in both appearance and sound. Of course, these are made in Russia and not England like the originals; but that...NP021-1$56.54 -
New Matched Pair (2) Sovtek 12AX7LPS / ECC83 Vacuum Tubes
Sovtek
$55.80New Gain Matched Pair of Sovtek 12AX7LPS Vacuum Tubes An overall excellent tube which has become the standard for manufacturers like Fender, Mesa Boogie etc. These have a spiral wound filament like the famous vintage 12AX7A which helps cut down on noise...NP001-2$55.80