Ruby TU12AX7AC4 (12AX7A) Preamp / Rectifier Tubes (EACH) - Used by Marshall / Peavy & Fender
Renowned for its quiet, high-gain operation and bright, clear tone. All Ruby output tubes are labeled on the base with the exact matching measurements for plate current and transconductance. By matching these parameters, optimal performance and long life are ensured. Comes with a 6-month replacement warranty.
Ruby 12AX7A Preamp / Rectifier Tubes (EACH) - EI - Renowned for its quiet, high-gain operation and bright, clear tone. All Ruby output tubes are labeled on the base with the exact matching measurements for plate current and transconductance. By matching these parameters, optimal performance and long life are ensured. Comes with a 6-month replacement warranty.
