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Chinese 12AX7-A The Chinese 12AX7 (made by Shuguang) tube is popular with Marshall owners...more
Availability: Usually ships within 24 hours.
Quantity pricing: Order 5 tubes and save a few bucks.

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Electro-Harmonix 12AX7-EH The 12AX7-EH tube has a nice balanced sound, a very low noise floor and excellent performance in terms of microphonics...more
Availability: Usually ships within 24 hours.

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Electro-Harmonix 12AX7-EH Gold This is the gold pin version of the popular Electro-Harmonix 12AX7-EH. The 12AX7-EH tube has a nice balanced sound, a very low noise floor and excellent performance in terms of microphonics...more
Availability: Usually ships within 24 hours. Quantity pricing: Order 5 tubes and save a few bucks.

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Ei 12AX7 / ECC83 The Ei 12AX7 is modeled after the famous "flat plate"
Telefunken pre-amp audio tube...more
Availability: Usually ships within 24 hours.

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Ei Elite 12AX7EG The Ei Elite 12AX7EG is modeled after the famous "flat plate"
Telefunken pre-amp audio tube...more Availability: Out of stock.

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JAN-Philips 12AX7WA From our review of this tube: "If you really want NOS (New Old Stock) tubes, this is one of the best buys out there. The Philips tube is well built and should be long lasting... more
Availability: Usually ships within 24 hours.

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JAN-Philips 5751 The JAN-Philips 5751 is our first choice for taming high gain guitar amps while vastly improving the clarity, smoothness, and vintage tone! They still have plenty of gain but if you have a high-gain preamp that does not have that classic crunch characteristic, the 5751 tube will do wonders.
In hifi preamps and CD players, the JAN-Philips 5751 will lower noise floor and sound smoother and clearer in place of many 12AX7 tubes.
Availability: Usually ships within 24 hours. Quantity pricing: Order 5 tubes and save $2 per tube.

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JJ ECC83-S / 12AX7 The JJ ECC83-S model has several improvements in its construction from the old ECC83 version... more Availability: Usually ships within 24 hours. Quantity pricing: Order 5 tubes and save five bucks.

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JJ ECC83-S / 12AX7 Gold The JJ ECC83S gold pin tube is a premium quality tube that replaces any 12AX7 / ECC83 type.
Availability: Usually ships within 24 hours.
Quantity pricing: Order 5 tubes and save a few bucks.

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JJ ECC803S / 12AX7 A premium quality tube that replaces any 12AX7 / ECC83 type.
We purchased these tubes on pretense that they were NOS Tesla ECC803S tubes. We discovered that they are in fact relabeled JJ Electronic ECC803S tubes, not Tesla. They are all new production JJ ECC803-S tubes and are priced accordingly.
Availability: Usually ships within 24 hours.
Quantity pricing: Order 5 tubes and save $2 a tube.

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Mullard 12AX7 / ECC83 This new production 12AX7 / ECC83 tube is New Sensor's reissue of the famous Mullard 12AX7.
Availability: Usually ships within 24 hours.

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RFT ECC83 / 12AX7 RFT is a German brand. The RFT ECC83 / 12AX7 is a durable tube with very low microphonics. The RFT ECC83 is well known as a fantastic hard rock "crunch" tube in Marshalls, Mesa-Boogies, and similar amps. They are slightly darker sounding than many other 12AX7/ECC83 tubes.
Our stock was received in bulk packs so we have packaged these RFT ECC83 tubes in our own white boxes.
Availability: Out of stock.

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Sovtek 12AX7-LPS Vacuum Tube From our review of this tube: "This is an entirely new 12AX7 design from Sovtek and a great step up in sound quality..." more Availability: Usually ships within 24 hours. Quantity pricing: Order 5 tubes and save a few bucks.

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Sovtek 12AX7-WA This 12AX7 is a dual triode currenty produced in Russia. It is used
by Fender... more
Availability: Usually ships within 24 hours. Quantity pricing: Order 5 tubes and save a few bucks.

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Sovtek 12AX7-WB The 12AX7-WB is favored by Marshall owners for its gainier characteristics and extra "kick" in big power heads.
Availability: Usually ships within 24 hours. Quantity pricing: Order 5 tubes and save a few bucks.

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Sovtek 5751 The Sovtek 5751 (low gain 12AX7) is an affordable alternative to the 12AY7 used in original Fender tweed amps and can be subbed for a 12AT7 reverb driver tube.more
Availability: Usually ships within 24 hours. Quantity pricing: Order 5 tubes and save a ten bucks.

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Svetlana 12AX7 This new 12AX7 tube has solid construction and build quality. They all test great on our equipment.
Availability: Usually ships within 24 hours. Quantity pricing: Order 5 tubes and save five bucks.

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Tung-Sol 12AX7 From our review of this tube: "There are only so many ways to describe tube tone and most have become cliches. The Tung Sol 12AX7 has the gain and drive of a Chinese 12AX7 and the pure tone of a Mullard or Brimar."
According to the manufacturer, this Tungsol 12AX7 is the Ultimate 12AX7. Big, warm, and musical. High Gain, ultra-low microphonics, and superb linearity with a dynamic 3-D sound.
Availability: Usually ships within 24 hours.

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Tung-Sol 12AX7 / ECC803-S Gold From our review of this tube: "There are only so many ways to describe tube tone and most have become clichés. The Tung Sol 12AX7 has the gain and drive of a Chinese 12AX7 and the pure tone of a Mullard or Brimar."
According to the manufacturer, this Tungsol 12AX7 is the Ultimate 12AX7. Big, warm, and musical. High Gain, ultra-low microphonics, and superb linearity with a dynamic 3-D sound.
Availability: Usually ships within 24 hours. Quantity pricing: Order 5 tubes and save a few bucks.

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5751 The 5751 tube is great for taming high gain guitar amps while vastly improving the clarity, smoothness, and vintage tone! They still have plenty of gain but if you have a high-gain preamp that does not have that classic crunch characteristic, the 5751 tube will do wonders.
Availability: Usually ships within 24 hours. Quantity pricing: Order 5 tubes and save $2 per tube.

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Matched Sections Service Read about our "Matched Sections" service for top performance from your pre-amp.

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12AX7 Tube Links For more information on 12AX7 tubes including pinout, ratings, application and possible substitutions visit 12AX7 in Wikipedia, 12AX7 in Duncan Amps, and 12AX7 in The Tube Directory.

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