Great chiming tone with sweet, warm midrange excellent for Marshall and Fender amps. Smooth distortion characteristics and one of the highest outpu...

These pass every Groove Tubes premium certification for microphonics, hum, physical characteristics and function. Quite simply the best 9-pin triod...

Our highest quality 12AX7A tube. All pre-amp tubes are properly tested for quality assurance.HG Grade: RUBY standard grade that will work in all po...

The original power platform behind most high-powered British guitar stacks from the '60s onward. Output is generally between 20 and 25 watts, with ...

12AX7 preamp tubes play a remarkable, dynamic role in the creation of the final tone in your vacuum tube amplifier. 12AX7s are components, early in...

A 12AX7A that blends high gain and low microphonics. Note! Ruby does not manufacture vacuum tubes, these are various branded tubes with Ruby's sti...

Exhibits many of the same characteristics as the EL34, but with a power output of roughly 5-8 watts. Very creamy and smooth; used in many modern cl...

The original power platform behind most high-powered British guitar stacks from the ’60s onward. Output is generally between 20 and 25 watts, with ...

The 6V6 is a low-output power tube (12-18 watts) often used in Fender® amplifiers, including the Champ®, Deluxe™, Dual Professional, Vibro-King®, P...

GT-12AX7/ECC83-S tubes pass every Groove Tubes premium certification for microphonics, hum, physical characteristics and function. Quite simply t...

The GT-EL84-R is a solid performer — good quality and long lasting. Tends to be a little more aggressive and edgy when pushed into overdrive. This ...

MESA® SPAX7 preamp tubes are a premium grade 12AX7 that possess an even higher standard of overall performance due to their incredibly low sensitiv...

Classic Design - Warm Overdrive - Soft Distortion Character. The 6V6 is a low-output power tube (12-18 watts) often used in Fender¨ amplifiers, inc...

The MESA® 12AT7 is a premium grade, lower gain preamp tube most often used in reverb stages and/or phase inverter positions in older amplifiers. It...

The MESA® 6L6 STR 440 is our very best overall, premium grade, USA equivalent 6L6, and our tube of choice in the production of all new MESA 6L6 pow...

The 6V6 is a low-output power tube (12-18 watts) often used in Fender® amplifiers, including the Champ®, Deluxe™, Dual Professional, Vibro-King®, P...

The original power platform behind most high-powered British guitar stacks from the ’60s onward. Output is generally between 20 and 25 watts, with...

Premium high gain Twin Triode featuring ultra-low microphonics, and a big, warm and very musical soundstage. Improved reissue of the Vintage NOS T...

These ECC83 / 12AX7 tubes are the same ones used in all EVH® branded amplifiers. These are perfect for maintaining your EVH amp, or an easy modific...

These GT-6L6GE power tubes are reissues of some classic tubes, and they feature a majority of USA components made on the original General Electric ...

The MESA® EL-84 / 6BQ5 is the little brother to the EL-34 and is the classic European-designed tube that lead the original British invasion. Our EL...

Groove Tubes GT-12AU7 Select Vacuum Tube   These pass every Groove Tubes premium certification for microphonics, hum, physical characteristics and ...

The original power platform behind most high-powered British guitar stacks from the '60s onward. Output is generally between 20 and 25 watts, with...

The original power platform behind most high-powered British guitar stacks from the ’60s onward. Output is generally between 20 and 25 watts, with ...

Our highest quality 12AX7A tube. All pre-amp tubes are properly tested for quality assurance.HG Grade: RUBY standard grade that will work in all po...

One of the highest-output 8-pin pentodes available. The KT88 delivers 35 to 50 watts per tube and was original equipment in amps during the ’70s a...

The JAN GE 12AX7 is a great sounding tube for both Hi-Fi and musical instruments. Many guitarists love this tube for its warm but crisp tone. These...

Groove Tubes GT-5Y3 Rectifier Tube Every Groove Tubes product receives premium certification for microphonics, hum, noise floor, physical operation...

The most powerful EL84. Much like the GE6BQ5. Made in Czechoslovakia. Great compromise between tone and reliability. Nice mids, sparkling highs an...

Every Groove Tubes product receives premium certification for microphonics, hum, noise floor, physical operation and characteristics. Specifically ...

Groove Tubes Gold Series GT-5AR4/GZ34 Rectifier Tube The 5AR4 (GZ34) rectifier tube is common to higher-powered tube amps such as the later Fender ...

The MESA® 6L6 STR-448 is a premium grade 6L6, with a balanced voice and plenty of punch and headroom. They produce rich low end, tight, full midran...

The MESA® 5U4GB Rectifier Tube is our very best overall 5U4 and our rectifier tube of choice in the production of all new MESA amps featuring this ...

The MESA® EL-34 STR 447 is our very best overall, premium grade NOS equivalent EL-34 and our tube of choice in the production of all new MESA EL-34...

The MESA® 6V6 STR 417 is the little brother to the 6L6 and exemplifies classic American tube tone from yesteryear. Extremely sweet and bubbly with ...

Similar to our most popular RUBY 6L6GCMSTR tube, about 1-2 watt higher in plate dissipation. Ruby's matching process is very exact and our tubes a...