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
$109.95Ribbed 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 low noise valve with a short plate structure for reduced microphonics.
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Ruby 12AX7AC5 HG+
$24.95Sweet, warm tone. Highest grade, lowest noise. Shuguang 12AX7B tested to Ruby specs. -
Shuguang 12AX7B
$16.95Shuguang 12AX7B 9th generation. 2014 production. Same as Ruby 12AX7AC5 HG+ and HG. ****LIMIT OF 5***** -
Sovtek 12AX7LPS
$20.95High gain, low noise, smooth sound. Great as a phase inverter. (same as Mullard reissue 12AX7.)
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Doug's Tubes, Inc.
188 Tally Lane
Wantagh, NY 11793
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Friday 11am-4PM EST
Saturday and Sunday Closed
Call to place an order:
516-314-0357
Email for tube recommendations:
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