ECC83 Valve (12AX7)

RUBY TUBES

graded vacuum tubes (electronic valves) to upgrade or as replacements for tube amplifiers (valve amps).

12AX7AC5 HG (or ECC83) Dual triode - high gain preamp

RUBY TUBES

Quick Overview
Sweet, warm tone. Low noise.

12AX7 AC5 HG (or ECC83) Dual triode - high gain preamp

Graded vacuum tubes (electronic valves) to upgrade or as replacements for tube amplifiers (valve amps)

The Ruby 12AX7AC5 HG High Grade tube is the Shuguang 12AX7 9th gen tube, but distributed by Magic Parts. These are a very consistently made tube, sweet sounding, and very warm. High grade is a measuring system used by Magic Parts, which basically means the tube is better suited for amps that need more quiet tubes.