pre tubes

  1. D

    Does it look like fake ECC83 / 12AX7 Mullards?

    I bought this tube as NOS mullard from Holland. Putted it in v1 of a vintage marshall and played for a while. Turned the amp off and some time later i noticed only this specific tube was simply looking different, it was white instead of black, and upon checking i realized it was just broke near...


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