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 Matched Trio (3) TAD ECC83-Cz / 12AX7 Premium Selected Vacuum Tubes
TAD
$120.30New Gain Matched Trio of Tube Amp Doctor ECC83-Cz Premium Selected Vacuum Tubes 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...NP233-3$120.30 -
New Matched Trio (3) TAD 7025 / E83CC-Cz / 12AX7 High Grade Vacuum Tubes
TAD
$102.07New Gain Matched Trio of Tube Amp Doctor 7025 / E83CC-Cz (12AX7 / ECC83) Highgrade Vacuum Tubes A specially selected tube for the emphasis of warm tones, lows, mids, overdrive and even highs. The A-Frame construction makes this an exceptionally low noise...NP231-3$102.07 -
Matched Sextet (6) White Boxed Sovtek 12AX7WA / 7025 Vacuum Tubes
$119.85New Late 2000's Stock White Boxed Gain Matched Sextet 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...MUL173-6$119.85 -
Matched Quintet (5) White Boxed Sovtek 12AX7WA / 7025 Vacuum Tubes
$99.95New Late 2000's Stock White Boxed Gain Matched Quintet 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...MUL173-5$99.95 -
New Matched Trio (3) JJ E83CC / 12AX7 A-Frame Grid Short Plate Vacuum Tubes
JJ Electronic
$110.50New Gain Matched Trio of JJ E83CC (12AX7) A-Frame Short Plate Vacuum Tubes The JJ E83CC uses A-frame construction with boxed plates for utmost stability and reliability. This ensures lower noise for audio applications. With the same gain rating as a...NP202-3$110.50 -
New Matched Septet (7) Psvane Hifi 12AX7 / ECC83 Vacuum Tubes
Psvane
$117.08New Gain Matched Septet 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...NP201-7$117.08 -
New Matched Sextet (6) Psvane Hifi 12AX7 / ECC83 Vacuum Tubes
Psvane
$100.46New Gain Matched Sextet 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...NP201-6$100.46 -
New Matched Quad (4) JJ 12AX7-MG / ECC83MG Mid Gain Vacuum Tubes
JJ Electronic
$102.61New Gain Matched Quad 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...NP200-4$102.61 -
New Matched Pair (2) Genalex Gold Lion CV4004 / 12AX7 Vacuum Tubes
Genalex
$121.74New Gain Matched Pair of Genalex Gold Lion CV4004 Short Plate Vacuum Tubes 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...NP197-2$121.74 -
New Matched Quad (4) Electro-Harmonix 7025 (12AX7) Vacuum Tubes
Electro-Harmonix
$109.49New Gain Matched Quad 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...NP195-4$109.49 -
New Matched Quad (4) Sovtek 12AX7WC / 7025 Vacuum Tubes
Sovtek
$111.24New Gain Matched Quad 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...NP122-4$111.24 -
![Gain Matched Quad (4) Svetlana 12AX7 ECC83 [Winged =C= SED Reissue] Vacuum Tubes](https://cdn11.bigcommerce.com/s-dfccaj35/images/stencil/350x350/products/44580/45915/NP117-4__54457.1650990842.JPG?c=2 "Gain Matched Quad (4) Svetlana 12AX7 ECC83 [Winged =C= SED Reissue] Vacuum Tubes")
New Matched Quad (4) Svetlana 12AX7 Vacuum Tubes
Svetlana
$113.99New Gain Matched Quad 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...NP117-4$113.99 -
New Matched Quad (4) JJ 5751 Low Gain Vacuum Tubes
JJ Electronic
$102.24New Gain Matched Quad 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...NP074-4$102.24 -
New Matched Trio (3) Electro-Harmonix 12AX7 / ECC83 GOLD PINS Vacuum Tubes
Electro-Harmonix
$108.86New Gain Matched Trio of Electro-Harmonix 12AX7 / ECC83 GOLD PINS Vacuum Tubes This is the same tube as the Electro-Harmonix 12AX7 with a few big differences. The pins are plated with gold to prevent corrosion and to protect the pins (they also fit a...NP075-3$108.86 -
New Matched Quad (4) JJ ECC803S High Gain Vacuum Tubes
JJ Electronic
$99.36New Gain Matched Quad 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...NP049-4$99.36 -
New Matched Quintet (5) Tung-Sol 12AX7 / ECC83 Reissue Vacuum Tubes
Tung-Sol
$119.95New Gain Matched Quintet 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...NP045-5$119.95 -
New Matched Quad (4) Tung-Sol 12AX7 / ECC83 Reissue Vacuum Tubes
Tung-Sol
$96.50New Gain Matched Quad 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...NP045-4$96.50 -
On Sale
New Matched Septet (7) Electro-Harmonix 12AX7 Vacuum Tubes
Electro-Harmonix
Now: $107.71Was: $143.61New Gain Matched Septet of Elector-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...NP027-7Now: $107.71Was: $143.61 -
New Matched Quad (4) Mullard CV4004 / 12AX7 Reissue Vacuum Tubes
Mullard
$102.26New Gain Matched Quad 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...NP035-4$102.26 -
New Matched Sextet (6) JJ 12AX7 / ECC83S Vacuum Tubes
JJ Electronic
$97.59New Gain Matched Sextet 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...NP030-6$97.59 -
New Matched Septet (7) JJ 12AX7 / ECC83S Vacuum Tubes
JJ Electronic
$113.41New Gain Matched Septet 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...NP030-7$113.41 -
New Matched Quad (4) Mullard Reissue 12AX7 Vacuum Tubes
Mullard
$102.26New Gain Matched Quad of Mullard 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...NP028-4$102.26 -
New Matched Pair (2) Genalex Gold Lion 12AX7 / ECC83 / B759 Gold Pin Reissue Vacuum Tubes
Genalex
$117.89New Gain Matched Pair of Genalex Gold Lion 12AX7 / ECC83 / B759 Gold Pin Vacuum Tubes 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...NP021-2$117.89 -
New Matched Quad (4) Sovtek 12AX7LPS / ECC83 Vacuum Tubes
Sovtek
$108.67New Gain Matched Quad 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...NP001-4$108.67