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 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 Svetlana 12AX7 Vacuum Tube
Svetlana
$28.58Gain Tested Svetlana 12AX7 / ECC83 Vacuum Tube 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 noise, the...NP117-1$28.58 -
New Gain Matched Sextet (6) Tung-Sol 12AX7 / ECC803S GOLD PINS Vacuum Tubes
Tung-Sol
$241.33New Gain Matched Sextet of Tung-Sol 12AX7 / ECC803S GOLD PINS Vacuum Tubes 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...NP081-6$241.33 -
New Gain Matched Quintet (5) Tung-Sol 12AX7 / ECC803S GOLD PINS Vacuum Tubes
Tung-Sol
$201.60New Gain Matched Quintet of Tung-Sol 12AX7 / ECC803S GOLD PINS Vacuum Tubes 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...NP081-5$201.60 -
New Gain Matched Quad (4) Tung-Sol 12AX7 / ECC803S GOLD PINS Vacuum Tubes
Tung-Sol
$161.86New Gain Matched Quad of Tung-Sol 12AX7 / ECC803S GOLD PINS Vacuum Tubes 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...NP081-4$161.86 -
New Gain Matched Trio (3) Tung-Sol 12AX7 / ECC803S GOLD PINS Vacuum Tubes
Tung-Sol
$122.13New Gain Matched Trio of Tung-Sol 12AX7 / ECC803S GOLD PINS Vacuum Tubes 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...NP081-3$122.13 -
New Gain Matched Pair (2) Tung-Sol 12AX7 / ECC803S GOLD PINS Vacuum Tubes
Tung-Sol
$82.39New Gain Matched Pair of Tung-Sol 12AX7 / ECC803S GOLD PINS Vacuum Tubes 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...NP081-2$82.39 -
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 Octet (8) JJ 5751 Low Gain Vacuum Tubes
JJ Electronic
$202.04New Gain Matched Octet 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...NP074-8$202.04 -
New Matched Sextet (6) JJ 5751 Low Gain Vacuum Tubes
JJ Electronic
$151.89New Gain Matched Sextet 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...NP074-6$151.89 -
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) JJ 5751 Low Gain Vacuum Tubes
JJ Electronic
$77.41New Gain Matched Trio 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...NP074-3$77.41 -
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 JJ 5751 Low Gain Vacuum Tube
JJ Electronic
$25.81New Gain Tested JJ 5751 Low Gain Vacuum Tube 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 JJ’s...NP074-1$25.81 -
New Matched Quad (4) Electro-Harmonix 12AX7 / ECC83 GOLD PINS Vacuum Tubes
Electro-Harmonix
$144.17New Gain Matched Quad 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...NP075-4$144.17 -
New Matched Pair (2) Electro-Harmonix 12AX7 / ECC83 GOLD PINS Vacuum Tubes
Electro-Harmonix
$73.55New Gain Matched Pair of Electro-Harmonix 12AX7 / ECC83 GOLD PINS Vacuum Tube 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...NP075-2$73.55 -
New Electro-Harmonix 12AX7 / ECC83 GOLD PINS Vacuum Tube
Electro-Harmonix
$35.68New Gain Tested 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 little more...NP075-1$35.68 -
New Matched Octet (8) JJ ECC803S High Gain Vacuum Tubes
JJ Electronic
$196.29New Gain Matched Octet 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...NP049-8$196.29 -
New Matched Septet (7) JJ ECC803S High Gain Vacuum Tubes
JJ Electronic
$171.69New Gain Matched Septet 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...NP049-7$171.69 -
New Matched Sextet (6) JJ ECC803S High Gain Vacuum Tubes
JJ Electronic
$147.58New Gain Matched Sextet 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...NP049-6$147.58 -
New Matched Quintet (5) JJ ECC803S High Gain Vacuum Tubes
JJ Electronic
$123.47New Gain Matched Quintet 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...NP049-5$123.47 -
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 Trio (3) JJ ECC803S High Gain Vacuum Tubes
JJ Electronic
$75.25New Gain Matched Trio 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...NP049-3$75.25 -
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 JJ ECC803S High Gain Vacuum Tube
JJ Electronic
$25.14New Gain Tested JJ ECC803S Vacuum Tube 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 amplifiers or...NP049-1$25.14 -
New Matched Octet (8) Tung-Sol 12AX7 / ECC83 Reissue Vacuum Tubes
Tung-Sol
$190.76New Gain Matched Octet 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...NP045-8$190.76 -
New Matched Septet (7) Tung-Sol 12AX7 / ECC83 Reissue Vacuum Tubes
Tung-Sol
$166.86New Gain Matched Septet 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...NP045-7$166.86 -
New Matched Sextet (6) Tung-Sol 12AX7 / ECC83 Reissue Vacuum Tubes
Tung-Sol
$143.41New Gain Matched Sextet 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...NP045-6$143.41 -
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 -
New Matched Trio (3) Tung-Sol 12AX7 / ECC83 Reissue Vacuum Tubes
Tung-Sol
$73.04New Gain Matched Trio 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...NP045-3$73.04 -
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 Tung-Sol 12AX7 / ECC83 Reissue Vacuum Tube
Tung-Sol
$24.34New Gain Tested Tung-Sol 12AX7 / ECC83 Vacuum Tube 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 these. The...NP045-1$24.34 -
New Matched Septet (7) Electro-Harmonix 12AX7 Vacuum Tubes
Electro-Harmonix
$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...NP027-7$143.61 -
New Matched Octet (8) Mullard CV4004 / 12AX7 Reissue Vacuum Tubes
Mullard
$202.09New Gain Matched Octet of Mullard CV4004 / 12AX7 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...NP035-8$202.09 -
New Matched Septet (7) Mullard CV4004 / 12AX7 Reissue Vacuum Tubes
Mullard
$177.04New Gain Matched Septet 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...NP035-7$177.04 -
New Matched Sextet (6) Mullard CV4004 / 12AX7 Reissue Vacuum Tubes
Mullard
$152.11New Gain Matched Sextet 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...NP035-6$152.11 -
New Matched Quintet (5) Mullard CV4004 / 12AX7 Reissue Vacuum Tubes
Mullard
$127.19New Gain Matched Quintet 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...NP035-5$127.19 -
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 Trio (3) Mullard CV4004 / 12AX7 Reissue Vacuum Tubes
Mullard
$77.34New Gain Matched Trio 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...NP035-3$77.34