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Groove Tubes 12AT7
SKU: SKU19520
12AT7. Used for phase inverters in many amps such as Fender Black and Silver Face, reverb drivers, etc.
Our price: €23.74
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Groove Tubes 12AU7
SKU: SKU21327
These are commonly used as phase inverters in McIntosh Hi-Fi amps, some Ampeg amps, and will yield the most clean headroom in many amps.
Our price: €22.98
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Groove Tubes 12AX7-R
SKU: SKU21323
New tube from Russia. Slightly brighter and lower gain, quicker compression than GT 12AX7. Great for most Fenders, may not be well suited for high gain Fender type amps (such as Boogie).
Our price: €22.98
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Groove Tubes 12AX7-R2
SKU: SKU21324
This is the second offering from the Russian tube factory that builds the Groove Tubes KT66HP. It has larger plates and a big bass response, also a spiral filament which supposedly reduces hum and noise, but these measure about average in that area.
Our price: €30.35
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Groove Tubes 12AX7-R3
SKU: SKU21325
The 3rd offering from the same Russian tube factory that builds the Groove Tubes 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 treble area, which is one reason the have a low m...
Our price: €30.35
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Groove Tubes 12AY7
SKU: SKU21328
This 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, where the owner of these amps would like to drop th...
Our price: €33.92
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Groove Tubes 5751-M
SKU: SKU21322
This is a lower gain 12AX7 tube type. Stevie Ray Vaughn used these to change his front end distortion to back end distortion ratio to have more of the touch sensitive output tube distortion.
Our price: €22.98
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Groove Tubes 5881-C Pair
SKU: SKU21339
GT exclusive design high power 5881 short bottle. This is a very high vacuum tube that is very stable. It's sweet tone but defined character was a mainstay in the Fender tweed era amps of the 1950s and early 1960s. The tube's short height allows easy use in amps such as Mesa rack mount amps and...
Our price: €60.69
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Groove Tubes 5881-C Quad
SKU: SKU21345
GT exclusive design high power 5881 short bottle. This is a very high vacuum tube that is very stable. It's sweet tone but defined character was a mainstay in the Fender tweed era amps of the 1950s and early 1960s. The tube's short height allows easy use in amps such as Mesa rack mount amps a...
Our price: €113.05
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Groove Tubes 5AR4 (GZ34)
SKU: SKU21375
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 rectifier in our marketplace. May be used to replace a 5U4 or 5Y3 and will give a faster more dynamic tonal result. This rectifier has a rise time...
Our price: €33.32
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Groove Tubes 5U4 - Big Bottle
SKU: SKU21376
Common to medium powered amps like the earlier Fender Super Reverbs and Bandmasters. May be used replaced a 5Y3 for improved dynamics and power. Also some players have replaced their 5AR4 with the 5U4 in their Vox AC30 amps to reduce heat and extend the life of the power tubes, we recommended thi...
Our price: €29.75
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Groove Tubes 5U4 - Short Bottle
SKU: SKU21377
Common to medium powered amps like the earlier Fender Super Reverbs and Bandmasters. May be used replaced a 5Y3 for improved dynamics and power. Also some players have replaced their 5AR4 with the 5U4 in their Vox AC30 amps to reduce heat and extend the life of the power tubes, we recommended thi...
Our price: €29.75
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Groove Tubes 5Y3
SKU: SKU21378
This rectifier may be used in amps such as the Matchless DC-30 series and similar amps when you want more compression, less attack, and to lower the voltages in these amps. This rectifier gives a nice feel to these amps with a much slower rise time than the 5AR4 or the 5U4, with a great feel. Thi...
Our price: €29.75
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Groove Tubes 6550-C Pair
SKU: SKU21358
A softer version of the older USA 6550A, with a nice distortion character. This tube has a distortion that is between a 6L6GC and a 6550A. In older Marshall's that have 6550's, this tube will give you more compression and distortion at lower levels than the other 6550 offerings. This tube is terr...
Our price: €128.22
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Groove Tubes 6550-C Quad
SKU: SKU21364
A softer version of the older USA 6550A, with a nice distortion character. This tube has a distortion that is between a 6L6GC and a 6550A. In older Marshall's that have 6550's, this tube will give you more compression and distortion at lower levels than the other 6550 offerings. This tube is terr...
Our price: €255.85
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Groove Tubes 6550-R Pair
SKU: SKU21359
Highest power pentode for use in Marshall, Hiwatt, Ampeg SVT, the GT amps and a few other higher powered amps. Also popular for HiFi amps. Excellent response, a little harder sounding than 6550-C. Price is for a matched pair.
Our price: €125.84
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Groove Tubes 6550-R Quad
SKU: SKU21365
Highest power pentode for use in Marshall, Hiwatt, Ampeg SVT, the GT amps and a few other higher powered amps. Also popular for HiFi amps. Excellent response, a little harder sounding than 6550-C. Price is for a matched quad.
Our price: €249.90
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Groove Tubes 6CA4
SKU: SKU21380
A common 9 pin rectifier for smaller amps like the Silverstone guitar/amp case combos of the 50's
Our price: €30.00
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Groove Tubes 6CA7-GE Pair
SKU: SKU21351
The GT6CA7GE is the classic American-style EL34 tube made in the exact likeness of the famed General Electric 6CA7 tube of the 60's. This was the tube we sold to Eddie Van Halen for his Marshalls used on the first two Van Halen albums (often cited for his best tone on record). Price is for a matc...
Our price: €106.51
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Groove Tubes 6CA7-GE Quad
SKU: SKU21357
The GT6CA7GE is the classic American-style EL34 tube made in the exact likeness of the famed General Electric 6CA7 tube of the 60's. This was the tube we sold to Eddie Van Halen for his Marshalls used on the first two Van Halen albums (often cited for his best tone on record). Price is for a matc...
Our price: €208.25
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Groove Tubes 6L6-CHP Pair
SKU: SKU21336
High Performance black plate 6L6 with GT heat sink plate assembly. 30 watt tube. GT exclusive design high performance 6L6 Black Plate with heat sink wings like the GT E34LS and KT88SV. Very strong, smooth, and linear. Fantastic in Fender Hot Rod Deluxe, Deville, etc. Price is for a matched pair.
Our price: €55.93
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