Preamp Tubes

Tung-Sol 12AX7 Tube

TELEFUNKEN ECC82-TK (12AU7) Preamp Tubes

TELEFUNKEN ECC83-TK (12AX7) Preamp Tubes

EVH ECC83/12AX7 Preamp Tubes

Ruby 12AX7AC5 Preamp Vacuum Tube

MESA/Boogie 12AX7 Preamp Tube

Mullard 12AX7 Preamp Tube

Sovtek 12AX7WA Preamp Tube

Electro-Harmonix 12AX7EH Preamp Tube

Groove Tubes Gold Series GT-ECC83-S Preamp Tube

Groove Tubes Gold Series GT-12AT7 Preamp Tube

TELEFUNKEN E88CC-TK (6922) Preamp Tubes

Mullard 12AT7 Preamp Tube

Ruby ECC83/12AX7A Preamp Tube

Groove Tubes GT-12AY7 Select Preamp Tube