Ruby 12AX7/AC7 High Grade Pre Amp Tube
Warm tones, sweet overdrive. Same as TAD 7025-S and Preferred Series 7025.
A high gain 7025 tube
All Ruby pre-amp tubes are properly tested for quality assurance.
HG Grade: RUBY standard grade that will work in all positions in an amplifier except in very high gain circuits, usually the first gain stage in a combo amplifier.