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Groove Tube Silver Series ST-12AU7-C Preamp Tube
Musiciansfriend
Groove Tube Silver Series ST-12AU7-C Preamp Tube
12AU7 Silver Series
$11.95
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Groove Tube Silver Series ST-12AT7 Preamp Tube
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Groove Tube Silver Series ST-12AT7 Preamp Tube
ST-12AT7
$11.95
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Groove Tube Silver Series ST-12AX7-R3 Preamp Tube
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Groove Tube Silver Series ST-12AX7-R3 Preamp Tube
ST-12AX7-R3
$11.95
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Groove Tube Silver Series ST-12AX7-R Preamp Tube
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Groove Tube Silver Series ST-12AX7-R Preamp Tube
The Groove Tubes Silver Series ST-12AX7-R Preamp Tube is intended as a replacement for tubes that will receive normal service.
$11.95
In stock
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Groove Tube Silver Series ST-ECC83-S Preamp Tube
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Groove Tube Silver Series ST-ECC83-S Preamp Tube
ST-ECC83-S Silver Series
$12.95
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Groove Tube Gold Series GT-12AT7  Preamp Tube
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Groove Tube Gold Series GT-12AT7 Preamp Tube
Highest quality JAN spec. military tube. NOS, made in USA with extremely long life. Used widely in most U.S.-made amps and, in particular, Fender amps. Fender amps with reverb use 2 - 12AT7s one for the reverb drive stage, and one as a phase inverter to drive the push/pull output…
$13.29
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Groove Tube Gold Series GT-12AU7 Preamp Tube
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Groove Tube Gold Series GT-12AU7 Preamp Tube
This design is from the Ei factory located in the former Yugoslavia. It's an excellent quality large-plate European-made driver tube, styled after the famous Telefunkin line of dual triodes. The usual application for a 12AU7 is as the phase inverter that drives the power tubes. T…
$13.95
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Groove Tube Silver Series ST-EL84-S Power Tube
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Groove Tube Silver Series ST-EL84-S Power Tube
The Silver Series ST-EL84-S Power Tube is Groove Tubes' European version with even more response, higher power and warmer tone. Good quality, long lasting type vacuum tube with a slightly aggressive edge when pushed into overdrive. Most common low power pentode, popularized i…
$13.95
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Groove Tube Silver Series ST-6V6-C Power Tube
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Groove Tube Silver Series ST-6V6-C Power Tube
ST-6V6-C Silver Series single tube
$13.95
In stock
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Groove Tube Gold Series GT-12AX7-C Preamp Tube
Musiciansfriend
Groove Tube Gold Series GT-12AX7-C Preamp Tube
The ever-popular and sorely missed Chinese 12AX7 is finally back! This tube has a warm, fat, old-style tone favored by blues players and the classic rock crowd.
$15.95
In stock
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Groove Tube Silver Series ST-6L6-S Power Tube
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Groove Tube Silver Series ST-6L6-S Power Tube
The Groove Tubes Silver Series ST-6L6-S Power Tube employs a new design with more power and heavy duty components. Slovakian made, with high power and very aggressive dynamic tone... punchy, but with a sweet tone. High power type with more highs and lows than other 6L6 types.
$15.95
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Groove Tube Gold Series GT-12AX7-R Preamp Tube
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Groove Tube Gold Series GT-12AX7-R Preamp Tube
The Groove Tubes Gold Series GT-12AX7-R Preamp Tube is an older-style Russian-type vacuum tube with strong tone and a slightly edgy tone. This newer tube from Russia has slightly brighter and lower gain, quicker compression than the GT 12AX7. Great for most Fender amplifiers, esp…
$16.95
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Groove Tube Silver Series ST-EL84-R Power Tube
Musiciansfriend
Groove Tube Silver Series ST-EL84-R Power Tube
ST-EL84-R Silver Series single tube
$17.95
In stock
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Groove Tube Silver Series ST-E34L-S Power Tube
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Groove Tube Silver Series ST-E34L-S Power Tube
The Groove Tubes Silver Series ST-E34L-S Power Tube is an exclusive GT design with special "heat wings" attached to plate for 15% more power, longer life, and better tone. Big bottom, very dynamic, most powerful in it's class. The 1st choice of Matchless and many pr…
$17.95
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Groove Tube Silver Series ST-EL34-R Power Tube
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Groove Tube Silver Series ST-EL34-R Power Tube
ST-EL34-R Silver Series single tube
$17.95
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Groove Tube Silver Series ST-6L6-R Power Tube
Musiciansfriend
Groove Tube Silver Series ST-6L6-R Power Tube
ST-6L6-R (B) Silver Series single tube
$17.95
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Groove Tube Gold Series GT-ECC83-S Preamp Tube
Musiciansfriend
Groove Tube Gold Series GT-ECC83-S Preamp Tube
Classic Euro type with medium to high gain and a linear frequency response. Very clear, even tone with good bass character.
$17.99
In stock
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Groove Tube Gold Series GT-5Y3 GZ30 Rectifier Tube
Musiciansfriend
Groove Tube Gold Series GT-5Y3 GZ30 Rectifier Tube
The Groove Tubes Gold Series GT-5Y3 GZ30 is a rectifier tube common to lower-powered Fender amplifiers such as the Champ, Princeton and Deluxe amps. This Gold Series vacuum tube can be used in many 5AR4 and 5U4 amps for lower levels. This Groove Tubes rectifier may be used in amp…
$17.99
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Groove Tube Gold Series GT-6C4 Rectifier Tube
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Groove Tube Gold Series GT-6C4 Rectifier Tube
The Groove Tubes GT-6C4 Rectifier Tube is a common 9 -in rectifier for smaller amps like the Silverstone guitar/amp case combos of the 50's.
$19.95
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Groove Tube Gold Series GT-5AR4/GZ34 Rectifier Tube
Musiciansfriend
Groove Tube Gold Series GT-5AR4/GZ34 Rectifier Tube
The most common rectifier used in higher powered amps which use a rectifier such as Fender 40 watt amps and Vox AC-30 amps. Common to higher powered tube amps, like the later Fender Super Reverb amps and the Vox AC30 (or Matchless copies). It is the higher powered tube type recti…
$20.95
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Groove Tube SAG-AT7-MPI Matched Phase Inverter Retube Kit
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Groove Tube SAG-AT7-MPI Matched Phase Inverter Retube Kit
The Groove Tubes SAG-AT7-MPI Matched Phase Inverter Retube Kit contains specially selected and matched 12AT7 vacuum tubes for critical audio or guitar/bass amplifier use. Intended when a match of the two sides of the triode are desired for phase inverter or driver use.This 12AT7 …
$20.95
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Groove Tube Gold Series GT-6201-M Preamp Tube
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Groove Tube Gold Series GT-6201-M Preamp Tube
Groove Tubes Gold Series GT-6201-M Preamp Tubes exhibit low noise, hum and microphonics and are specially selected for use in recording microphones. These tubes are tested and processed from NOS General Electric USA made stocks and are the hand pick of the litter.A very quiet sel…
$20.95
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Groove Tube SAG-AX7-MPI Matched Phase Inverter Retube Kit
Musiciansfriend
Groove Tube SAG-AX7-MPI Matched Phase Inverter Retube Kit
The Groove Tubes SAG-AX7-MPI Matched Phase Inverter Retube Kit consists of specially selected and matched 12AX7 vacuum tubes for critical audio or guitar/bass amplifier use. They're intended primarily for matching the two sides of the triode for phase inverter or driver use.T…
$20.95
In stock
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Groove Tube Silver Series ST-6L6-C Power Tube
Musiciansfriend
Groove Tube Silver Series ST-6L6-C Power Tube
The Chinese-made Groove Tubes Silver Series ST-6L6-C Power Tube offers you sweeter tone and nice break up. Latest design handles higher plate voltage and output is equal to the Russian tubes. New model, large straight bottle like Sylvania STR tube of the late 70's. High power…
$20.95
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Groove Tube Gold Series GT-5U4 GZ32 Rectifier Tube
Musiciansfriend
Groove Tube Gold Series GT-5U4 GZ32 Rectifier Tube
The Groove Tubes GT5U4 GZ32 rectifier tube is commonly found in many medium powered amplifiers such as the Fender Blackface amps. The Gold Series GT-5U4 is the factory selected rectifier for the Mesa Dual and Triple rectifier series. Common to medium powered amps like the earlier…
$20.95
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Groove Tube Silver Series ST-KT66-C Power Tube
Musiciansfriend
Groove Tube Silver Series ST-KT66-C Power Tube
ST-KT66-C Silver Series single tube
$23.95
In stock
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Groove Tube Gold Series GT-6V6-C Matched Power Tube
Musiciansfriend
Groove Tube Gold Series GT-6V6-C Matched Power Tube
GT-6V6-C Duet Classically designed with warm overdrive and soft distortion character. Chinese made copy of the old USA 6V6 used in old Deluxe Reverbs. Round, warm, fat tone with lower power but great for a soft blues tone or great fat classic rock sound too.These tubes perform ve…
$27.95
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Groove Tube Gold Series GT-6CA4 Rectifier Tube
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Groove Tube Gold Series GT-6CA4 Rectifier Tube
The Groove Tubes Gold Series GT-6CA4 Rectifier Tube is a common 9-pin rectifier for smaller amps like the Silverstone guitar/amp case combos of the 50's.
$27.95
In stock
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Groove Tube Gold Series GT-EL84-R Matched Power Tubes
Musiciansfriend
Groove Tube Gold Series GT-EL84-R Matched Power Tubes
GT-EL84-R Duet Russia EL84, Good quality, long lasting type with a slightly aggressive edge when pushed into overdrive. Most common low power pentode, popularized in early Vox AC30 amps. Rediscovered by Matchless amps and now currently used by nearly every tube amp company. Quick…
$29.95
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Groove Tube GT-12AX7-R2 Preamp Tube
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Groove Tube GT-12AX7-R2 Preamp Tube
The Groove Tubes GT-12AX7-R2 Preamp Tube is the second offering from the Russian tube factory. It has larger plates and a big bass response, also a spiral filament which reduces hum in some amp designs.These long plate tubes are a great choice for a phase inverter tube as well fo…
$29.99
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Groove Tube GT-12AX7-R3 Select Preamp Tube
Musiciansfriend
Groove Tube GT-12AX7-R3 Select Preamp Tube
The Groove Tubes GT-12AX7-R3 Select Preamp Tube is 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 lacki…
$29.99
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Groove Tube Silver Series ST-7591-R Power Tube
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Groove Tube Silver Series ST-7591-R Power Tube
The Groove Tubes Silver Series ST-7591-R Power Tube is a somewhat obscure pentode tube used in some early Gibson amps that had been off the market. Recently, a Russian factory decided to supply it again. Groove Tubes ST-7591-R tubes are made in very low quantities and are a close…
$30.95
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Groove Tube GT-12AY7 Select Preamp Tube
Musiciansfriend
Groove Tube GT-12AY7 Select Preamp Tube
The Groove Tubes GT-12AY7 Select Preamp Tube is closest in specification to a 12AX7 and can be exchanged with a slight drop in gain. Most companies changed over to the 12AX7 as it became more common. This tube can be tried in later Marshall amplifiers in the first gain position, …
$32.99
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Groove Tube Gold Series GT-6V6-R Marched Power Tubes
Musiciansfriend
Groove Tube Gold Series GT-6V6-R Marched Power Tubes
GT-6V6-C Duet Classically designed with warm overdrive and soft distortion character. Chinese made copy of the old USA 6V6 we loved in our old Deluxe Reverbs. Round, warm, fat tone with lower power put great for a soft blues tone or great fat classic rock sound too. Classically d…
$34.95
In stock
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Groove Tube Gold Series GT-EL84-S Matched Power Tubes
Musiciansfriend
Groove Tube Gold Series GT-EL84-S Matched Power Tubes
This GT-EL84-S Matched Power Tube Duet and Quartet features a new European version with even more response, higher power, and warmer tone. It's the low-power pentode popularized in the early Vox AC30 amps. It was rediscovered by Matchless and now is used by nearly every tube amp …
$34.95
In stock
Buy for USA only
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Groove Tube Silver Series ST-6V6-R Power Tube
Musiciansfriend
Groove Tube Silver Series ST-6V6-R Power Tube
ST-6V6-R Silver Series
$34.95
In stock
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Groove Tube Gold Series GT-EL34-M Matched Power Tubes
Musiciansfriend
Groove Tube Gold Series GT-EL34-M Matched Power Tubes
GT-EL-34M XF2 Dual Getter - Matched Duet Reproduction of a classic EL-34 XF2 Pair Getter tube. The GT-EL34M was shown at NAMM. This tube is based upon a tube which is considered something of an icon to EL34 users in both the audio world and guitar amp world. There were a number o…
$36.95
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Groove Tube Gold Series GT-EL34-R Matched Power Tubes
Musiciansfriend
Groove Tube Gold Series GT-EL34-R Matched Power Tubes
This Russian-made pentode is standard on many UK amps and has great durability, although as with most Russian power tubes the break up is a bit harsh and they lack high end as compared to the true European models.This exclusive Groove Tubes design is a close copy of classic the M…
$41.95
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Groove Tube Silver Series ST-6550-R Power Tube
Musiciansfriend
Groove Tube Silver Series ST-6550-R Power Tube
ST-6550-R Silver Series single tube
$41.95
In stock
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Groove Tube Silver Series ST-6550-C Power Tube
Musiciansfriend
Groove Tube Silver Series ST-6550-C Power Tube
ST-6550-C Silver Series single tube
$41.95
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