12AX7 / ECC83 / 7025
The 12AX7 is by far the most common out of all preamp tubes. Also known as the ECC83 or the 7025, it is a dual triode tube that has the highest voltage gain of all preamp tubes, with a mu of 100. Widely used across guitar amplifiers and hi-fi applications.
For less gain, you can replace a 12AX7 with 5751, 12AT7, or a 12AY7
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ANOS Telefunken 12AX7/ECC83
$119.95Ribbed or smooth plate, these are used pulls, but test as new. Call for availability.
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Electro-Harmonix 7025
$16.95The Electro-Harmonix 7025EH has a mid-range that gives clarity and definition to the sound and a smooth top end for warmth and balance.
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Mullard CV4004/12AX7
$19.95The CV4004/12AX7 is a high gain, low noise valve with a short plate structure for reduced microphonics. NEW ARRIVAL!
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NOS-Chinese 12AX7
$29.95NOS 80's Chinese 12AX7(Foil dimpled square getter). Made in the closed Beijing tube factory. LOW STOCK ALERT.
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Ruby 12AX7ACZ HG
$13.95Highest gain 12AX7, great for metal and hard rock. Selected high grade JJ ECC83.