Guitar and Bass Amplifier Tubes

(aka: ECC83, 7025) The standard preamp tube replacement.

The MESA 5881 STR-425 is a military grade 6L6 that was designed with an emphasis on rugged durability and consistency, capable of handling high voltage requirements - It produces a thick, rich tone with tapered highs that lends itself to styles of jazz, fusion, some blues or any style where tapered highs and a full round tone are desired. 750881D Note: Only available for U.S. shipping and requires a valid U.S. billing address. Call (800) 462-226...

The MESA EL-34 STR-447 is our very best overall EL-34 - It is a premium grade, NOS (New Old Stock) equivalent and our tube of choice in the production of all new Mesa EL-34 powered models - It has a traditional EL-34 tone & feel that is very urgent and aggressive and is an excellent choice for all styles of gain, especially classic rock, alternative rock & metal - This tube is true to the crown with focused low end, crushing mid range cru...

3 3/4" from bottom of base to top of glass. The MESA 5U4GB rectifier tube is our very best overall 5U4 and our tube of choice in the production of all new Mesa amps featuring this tube - Based upon classic 1950's technology, the 5U4GB is a vastly improved 5U4 design that is extremely reliable and consistent, as well as much more compact - It is basically the size of a 6L6 power tube, so please take special care to install them in the correct...

The MESA 5AR4 rectifier tube produces a vintage feel with light to mild "sag" - While it produces more "sag" than Silicon Diodes, it is the least "saggy" of our tube rectifier offerings (The Rectifier is part of the Power Supply and its purpose is to convert AC into DC). 750504F Note: Only available for U.S. shipping and requires a valid U.S. billing address. Call (800) 462-2263 for more information. *Shipping Char...

Great for Marshalls and Fenders. Sweet warm mid range tone, complements tone of European amps.

The MESA 6V6 STR-417 is the little brother to the 6L6 and is all about classic American tube tone from yesteryear - Extremely sweet and bubbly with a beautifully deep bass and spacious shimmering highs, this tube defines vintage "Deluxe" styled tone and is a great substitute in the Mark I, Mark IV & Lone Star when used with their "Tweed" Switch feature - Please see the amplifier owner's manual for correct use of this tube....

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 and are extremely lively, open and expressive. 750150F Note: Only available for U.S. shipping and requires a valid U.S. billing address. Call (800) 462-2263 for more information. *Shipping Charges Apply

Groove Tubes GTE34LS4 Power Quartet EL34 Guitar Amplifier Tube - Matched Set of 4 - Rating 4

The MESA 12AT7 is a premium grade, classic low gain preamp tube most often used as a reverb driver and/or phase inverter in older amplifiers - It is used as a reverb driver in older MESA/Boogie designs, such as the Studio Preamp and some Mark Series amplifiers. 750227F Note: Only available for U.S. shipping and requires a valid U.S. billing address. Call (800) 462-2263 for more information. *Shipping Charges Apply

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 - Our EL-84 is tight and aggressive, yet smooth and warm, with an amazing chiming mid and top end - Brilliant focus with a frequency response that always brings your guitar to the front of the mix - This tube is true to its classic roots and is extremely consistent and reliable. Note: Only available for U.S. shipping a...

The MESA EL-34 STR-450 is an actual German made, "A" grade NOS (New Old Stock) Siemens EL-34 - This legendary European EL-34 is known for its unsurpassed "bell-tone" clarity and touch sensitive sustain & articulation - Premier German engineering provides unsurpassed structural quality that makes this one of the most toneful, consistent and reliable EL-34's you can buy - This is a final chance to own a real authentic EL-34 ...