12AT7 / ECC81

12AT7's have a lower voltage gain than 12AX7's.  They have a higher plate current and transconductance, and are commonly used as reverb drivers and phase inverters.  ECC81 is the European equivalent. We do not recommend 12AT7's as a 12AX7 substitution.


  • GE 6201

    GE 6201
    Premium military NOS tube. SOLD OUT
  • Mullard 12AT7 / CV4024

    Mullard 12AT7/CV4024
    Military Mullard CV4024/12AT7.
  • NOS 12AT7

    NOS 12AT7
    Assorted brands NOS 12AT7

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