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





Ruby 7025SS HG
Ruby 7025SS HG
Ruby 7025SS HG
Ruby 7025 high grade. Old factory Shuguang 12AX7B's with a gra...
$ 22.95
Genelex Gold Lion china
Gold Lion 12AX7 standard pins
Genelex Gold Lion 12AX7 standard pin
The Genalex Gold Lion 12AX7/ECC83 Standard Pins is a low cost ...
From $ 34.90
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Ruby 12AX7WBC HG
Ruby 12AX7WBC HG
Here is a new Ruby tube, a chinese Shuguang copy of the Sovtek...
$ 26.95
Ei ECC83
Ei ECC83
The Ei ECC83/12AX7's were produced in Yugoslavia on Telefunken...
$ 34.95
Sovtek 5751
Sovtek 5751
Lower gain 12AX7 sub with a gain factor of 70. The long plate ...
From $ 29.95
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ANOS Telefunken 12AX7/ECC83
ANOS Telefunken 12AX7/ECC83
Ribbed or smooth plate, these are used pulls, but test as new.
$ 104.95
ANOS Mullard 12AX7
ANOS Mullard 12AX7
ANOS Mullard 12AX7
ANOS Mullard 12AX7's, used pulls, test as new! Test like new.
$ 99.00
NOS GE 12AX7
NOS GE 12AX7
NOS GE 12AX7
NOS GE 12AX7, solid new old stock tube, 8 pieces available. Pr...
$ 139.95
NOS RCA 12AX7
NOS RCA 12AX7
NOS RCA 12AX7
NOS RCA 12AX7, solid new old stock tube, 2 pieces available. P...
$ 179.95