Electro-Harmonix 6922
Genalex Gold Lion 12AX7 / ECC83
Mullard 12AX7 / ECC83
Svetlana 12AX7
Sino 12AX7B
Sino 12AT7 / ECC81
Electro-Harmonix Gold 6H30Pi
Genalex Gold Lion 6922 / E88CC
Mullard 12AT7 / ECC81
Genalex Gold Lion 12AU7 / ECC82
Electro-Harmonix 12AX7
Electro-Harmonix 12AU7/ECC82
Tung-Sol 12AX7
Sovtek 5751
Tung-Sol Gold 12AX7 / ECC803S
Mullard 12AX7 / CV4004
Electro-Harmonix 12AX7 Gold Pins
Sovtek 12AX7LPS
Sovtek 12AX7WB/7025
Electro-Harmonix 6072/12AY7