The NOS 12AX7 | ECC83 Page is where you’ll find the best value and quality in new, never used old stock 12AX7 tubes. The 12AX7 is the most common preamp tube in use today and the NOS versions are the best available by far.  We have European from makers like Mullard, Amperex Bugle Boy, Telefunken, Siemens, RFT, Tesla and others. American makers include RCA, GE, Ken-Rad, Sylvania, Hytron CBS, TungSol, Realistic and more. There are many desgnations for the 12AX7 including ECC803s, 7025, 12AX7A, E83CC, E803CC, 6L13, CV4035, F6057, M8214, B759, 12DF7, 12AD7, 12DT7, 7729, 6681, and 5751.

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