Amplifier Replacement Tubes

MESA 12AX7's are premium grade preamp tubes that provide the maximum level of high gain output and overall tonal quality with unsurpassed consistency and reliability - They possess a smooth and balanced response across the tonal spectrum ...

This replacement tube is another proven "EH" series vacum tube from Electro-Harmonix which is one of the more common preamp tubes in use today. This tube generates high gain with ultra low noise resulting in a well defined sound with good ...

The 3rd offering from the same Russian tube factory that builds the R1 and R2, but this one has medium sized plates and a nice balanced tone. Good midrange and average gain. Like all Russian preamp tubes, the sound is a bit lacking in ...

The MESA EL-34 STR-447 is Mesa's very best overall EL-34 - It is a premium grade, NOS (New Old Stock) equivalent and the tube of choice in the production of all new Mesa EL-34 powered models - It has a traditional EL-34 tone ...

The MESA 6L6 STR-440 is Mesa's very best overall 6L6 - It is a premium grade, US equivalent and the tube of choice in the production of all new Mesa 6L6 powered models - Remarkable bass definition, articulate mids and shimmering ...

The MESA 5U4G rectifier tube is a classic 1930's "Coke Bottle" design - It produces a flexible, elastic feel that is a bit more controlled and slightly less "saggy" than our new 5U4GB - It has a nice spongy feel but has moderate life ...

MESA SPAX7 preamp tubes are a super-premium grade substitute for any 12AX7 positions - They are a "Special Requirement Preamp Tube" that possess an even higher standard of overall performance, due to their incredibly low sensitivity to ...

Single-pack analog vacuum tube "blue" by Roberts RetroValave. Low gain.

With the JJ EL84 you get a combination of both great tone and reliability. This tube is characterized by sparkling highs, good mids, and a solid bottom end. Quality construction and a low failure rate make this tube a terrific choice for ...

The MESA 5Y3 is a true, authentic 5Y3 NOS (New Old Stock) equivalent modeled after the original Phillips 5Y3 and is built to our exacting specification for use in our Lone Star Special - This tube produces a sultry vintage sag, creating a ...

Single-pack analog vacuum tube "amber" by Roberts RetroValve. One standard gain tube.

Single-pack analog vacuum tube "red" by Roberts RetroValve. Red hi-gain tube.

R.F. Double Triode BaseMade in Solvakia.

A.F Double Triode Base: Noval.

The MESA EL-84 / 6BQ5 is the little brother to the EL-34 and is the classic European designed tube that lead the British invasion - This EL-84 is tight and aggressive, yet smooth and warm, with an amazing chiming mid and top end - ...

The JJ EL34 is one of the most popular power tubes around. It's a clean tube with crisp highs and less bass. Highly recommended for most modern and vintage amplifiers.Octal power tube (max. plate watts: 25).

3-pack analog vacuum tube "Amber" by Roberts RetroValve. Standard gain.

3-pack analog vacuum tube "blue" by Roberts RetroValve. Three lower gain tubes.

Double anode rectifying tube, GZ34. Made in Slovakia.

Slovakian made with high power and very agressive dynamic tone...punchier sounding but still a sweet tone. New design with more power and heavy duty components. High power type with more highs and lows than other 6L6 types.