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Groove Tubes

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Groove Tubes 12AT7
12AT7. Used for phase inverters in many amps such as Fender Black and Silver Face, reverb drivers, etc.
€24,40
including VAT 19% , [plus shipping]
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Groove Tubes 12AU7
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.
€27,24
including VAT 19% , [plus shipping]
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Groove Tubes 12AX7-C
A new Groove Tubes offering from China with warm round and fat tone, not too bright.
€23,74
including VAT 19% , [plus shipping]
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Groove Tubes 12AY7
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 the background noise and lower the gain level to plexi or early 70's vintage gain levels with its returned wider frequency response.
€48,20
including VAT 19% , [plus shipping]
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Groove Tubes 5AR4 (GZ34)
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 from 300-400 volts that is about 1/2 that of a 5U4 so they are very nice in amps such as the Mesa Rectifier series which use the 5U4 if you want a feel and response that is tighter than the stock rectifiers yet retain the feel and compression character of a vacuum rectifier over the solid state setting.
€34,46
including VAT 19% , [plus shipping]
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Groove Tubes 5U4 - Short Bottle
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 this as a "stability enhancer", if you can live with the slightly lower power.
€37,31
including VAT 19% , [plus shipping]
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Groove Tubes 5Y3
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. This rectifier will also let amps such as the Matchless distort at a lower volume to be used in smaller venues and record sweetly at lower settings
€37,31
including VAT 19% , [plus shipping]
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Groove Tubes 6550-R Pair
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.
€143,63
including VAT 19% , [plus shipping]
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Groove Tubes 6550-R Quad
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.
€287,40
including VAT 19% , [plus shipping]
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Groove Tubes 6C4
Groove Tubes Rectifier Tube
€37,31
including VAT 19% , [plus shipping]
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Groove Tubes 6CA4
A common 9 pin rectifier for smaller amps like the Silverstone guitar/amp case combos of the 50's
€24,31
including VAT 19% , [plus shipping]
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Groove Tubes 6L6-CHP Pair
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.
€63,18
including VAT 19% , [plus shipping]
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Groove Tubes 6L6-CHP Quad
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 quad.
€126,43
including VAT 19% , [plus shipping]
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Groove Tubes 6L6-GE Pair
GT reissue which have a majority of USA components made on the original General Electric machines, the original tools, dies, materials and processing formulas as acquired from the liquidation for the last American tube factory in Owensboro Kentucky. Stunning clarity, and tone that is reminiscent of Carl Perkins through Jimi Hendrix... both of which mostly recorded through Fender amps in a period when they only use this tube. Price is for a matched pair.
€95,20
including VAT 19% , [plus shipping]
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Groove Tubes 6L6-GE Quad
GT reissue which have a majority of USA components made on the original General Electric machines, the original tools, dies, materials and processing formulas as acquired from the liquidation for the last American tube factory in Owensboro Kentucky. Stunning clarity, and tone that is reminiscent of Carl Perkins through Jimi Hendrix... both of which mostly recorded through Fender amps in a period when they only use this tube. Price is for a matched quad.
€189,64
including VAT 19% , [plus shipping]
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Groove Tubes 6L6-R(B) Pair
Perhaps the most reliable of the currently made types, with slightly less power and a more aggressive edge when pushed into distortion. These are the tubes that are used by Fender in amps that use 6L6 tubes and are amps that DO NOT come from their custom shop. These are used in the Hot Rod series, Blues DeVille series, Pro Tube series, BF reissue series. The GT 6L6GE is used in the 57 Tweed, Vibroverb and Vibro King amps. Price is for a matched pair.
€76,11
including VAT 19% , [plus shipping]
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Groove Tubes 6L6-R(B) Quad
Perhaps the most reliable of the currently made types, with slightly less power and a more aggressive edge when pushed into distortion. These are the tubes that are used by Fender in amps that use 6L6 tubes and are amps that DO NOT come from their custom shop. These are used in the Hot Rod series, Blues DeVille series, Pro Tube series, BF reissue series. The GT 6L6GE is used in the 57 Tweed, Vibroverb and Vibro King amps. Price is for a matched quad.
€152,27
including VAT 19% , [plus shipping]
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Groove Tubes 6L6-S Pair
Slovakian made with high power and very agressive dynamic tone...punchier sounding but still a sweet tone. New GT design with more power and heavy duty components. High power type with more highs and lows than other 6L6 types.
€81,00
including VAT 19% , [plus shipping]
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Groove Tubes 6L6-S Quad
New GT design with more power and heavy duty components. High power type with more highs and lows than other 6L6 types. Price is for a matched quad.
€172,41
including VAT 19% , [plus shipping]
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Groove Tubes 6V6-C Pair
Classically designed with warm overdrive and soft distortion character.
€45,22
including VAT 19% , [plus shipping]
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Groove Tubes 6V6-C Quad
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. Price is for a matched quad.
€91,94
including VAT 19% , [plus shipping]
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Groove Tubes 6V6-R Pair
The choice of most all smaller powered Fender amps and other similar low powered amps (about 15 watts per tube). Warm, round, easily overdriven. Great for recording or practice. Price is for a matched pair.
€67,50
including VAT 19% , [plus shipping]
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Groove Tubes 6V6-R Quad
The choice of most all smaller powered Fender amps and other similar low powered amps (about 15 watts per tube). Warm, round, easily overdriven. Great for recording or practice. Price is for a matched quad.
€135,04
including VAT 19% , [plus shipping]
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Groove Tubes 6V6-S Pair
Highest output 6V6. This tube has more of the character of a 6L6 than 6V6 in many amps. These handle plate voltages in excess of 475 plate volts and have a very agressive tone and long life. Price is for a matched pair.
€73,23
including VAT 19% , [plus shipping]
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Groove Tubes 6V6-S Quad
Highest output 6V6. This tube has more of the character of a 6L6 than 6V6 in many amps. These handle plate voltages in excess of 475 plate volts and have a very agressive tone and long life. Price is for a matched quad.
€135,04
including VAT 19% , [plus shipping]
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Groove Tubes 7027-S Duet
This obscure pentode tube used in some early Gibson amps had had been off the market until our favorite Russian factory decided to decided to supply it again. They are made in very low quantities, which is why the relatively high price, but they are a close copy of the origional tube and sound real good.
€104,82
including VAT 19% , [plus shipping]
Qty
Groove Tubes 7027-S Quartet
This rare tube used in early Ampeg amps ad been off the market for years until our favorite European company, decided to help out and make one for us. A good tube in all areas, and in fact the only option if you've got an old ampeg VT22 or V4.
€209,77
including VAT 19% , [plus shipping]
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Groove Tubes 7591-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, soft overdrive distortion, great for recording. Price is for a matched quad.
€109,05
including VAT 19% , [plus shipping]
Qty
Groove Tubes 7591-R Quartet
This obscure pentode tube used in some early Gibson amps had had been off the market until our favorite Russian factory decided to decided to supply it again. They are made in very low quantities, which is why the relatively high price, but they are a close copy of the origional tube and sound real good.
€218,19
including VAT 19% , [plus shipping]
Qty
Groove Tubes E34L-S Pair
Matched pair of two premium E34L tubes.
€70,21
including VAT 19% , [plus shipping]
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Groove Tubes E34L-S Quad
Matched pair of four premium E34L tubes. Price is for a matched quartet.
€129,69
including VAT 19% , [plus shipping]
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Groove Tubes ECC83-S
Classic Euro type with medium to high gain and a linear frequency response. Very clear even tone with good bass character. This is the standard tube that was used in Marshall amplifiers and Vox amplifiers. For those that change first stage gain preamp tubes to change the taste and character of their amps (remember, this can be done in less than a minute without tools, adjustments, or a "tech"). This is one tube that should be in your basic toolbox. The basic tube sets generally are the 12AX7C, ECC83, and 7025 to cover a wide range of styles and tastes for most amplifiers.
€28,94
including VAT 19% , [plus shipping]
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Groove Tubes EL34-M Pair
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 of variants of the original tube and GT chose the classic XF2 dual getter version to reproduce. The original was a classic and this tube is on it's way to developing it's own great track record just as the GT-6L6GE, E34LS, and KT88SV proprietary tubes. Price is for a matched pair.
€63,18
including VAT 19% , [plus shipping]
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Groove Tubes EL34-M Quad
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 of variants of the original tube and GT chose the classic XF2 dual getter version to reproduce. The original was a classic and this tube is on it's way to developing it's own great track record just as the GT-6L6GE, E34LS, and KT88SV proprietary tubes. Price is for a matched quartet.
€126,43
including VAT 19% , [plus shipping]
Qty
Groove Tubes EL34-R Pair
Newly exclusive GT design, close copy of classic Mullard type with good power and flat tonal response. Unique sound, slightly edgy distortion when pushed hard. The most reliable of all in this family. Price is for a matched pair.
€59,35
including VAT 19% , [plus shipping]
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Groove Tubes EL34-R Quartet
Newly exclusive GT design, close copy of classic Mullard type with good power and flat tonal response. Unique sound, slightly edgy distortion when pushed hard. The most reliable of all in this family. Price is for a matched quartet.
€117,81
including VAT 19% , [plus shipping]
Qty
Groove Tubes EL84-R Pair
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, soft overdrive distortion, great for recording. Price is for a matched pair.
€44,48
including VAT 19% , [plus shipping]
Qty
Groove Tubes EL84-R Quad
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, soft overdrive distortion, great for recording. Price is for a matched quad.
€89,06
including VAT 19% , [plus shipping]
Qty
Groove Tubes EL84-S Pair
New European version with even more response, higher power and warmer tone. 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, soft overdrive distortion, great for recording.
€47,60
including VAT 19% , [plus shipping]
Qty
Groove Tubes EL84-S Quad
New European version with even more response, higher power and warmer tone. 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, soft overdrive distortion, great for recording. Price is for a matched quad.
€97,68
including VAT 19% , [plus shipping]
Qty
Groove Tubes KT88-SV Pair
New exclusive GT design with special "heat wings" attached to plate for more power, longer life, and better tone. Big bottom, very dynamic, most powerful in it's class. Great in Ampeg SVT and HiFi amps. Used by many manufactures such as Matchless, McIntosh and Cary Audio. Has a 15% higher output. Expect a puncky tight tone with excellent bass response... great for country tight licks and big round jazz tones. Popular with heavy metal and speed players looking for a very clean output section where there majority of their distortion comes from their preamp section of their amp, or via pedals or effects. Price is for a matched pair.
€201,17
including VAT 19% , [plus shipping]
Qty
Groove Tubes KT88-SV Quad
New exclusive GT design with special "heat wings" attached to plate for more power, longer life, and better tone. Big bottom, very dynamic, most powerful in it's class. Great in Ampeg SVT and HiFi amps. Used by many manufactures such as Matchless, McIntosh and Cary Audio. Has a 15% higher output. Expect a puncky tight tone with excellent bass response... great for country tight licks and big round jazz tones. Popular with heavy metal and speed players looking for a very clean output section where there majority of their distortion comes from their preamp section of their amp, or via pedals or effects. Price is for a matched pair.
€402,34
including VAT 19% , [plus shipping]
Qty
Groove Tubes SUB-1
6SL7 to 12AX7 (includes GT-12AX7 Tube)
Groove Tubes Substi-Tubes allow the replacement of octal type preamp tubes with the more common and higher quality 9-pin miniatures by properly mating a female 9-pin socket to an 8-pin plug.
€76,27
including VAT 19% , [plus shipping]
Qty
Groove Tubes SUB-1A
6SN7 to 12AT7 (includes GT-12AT7 tube)
Groove Tubes Substi-Tubes allow the replacement of octal type preamp tubes with the more common and higher quality 9-pin miniatures by properly mating a female 9-pin socket to an 8-pin plug.
€76,27
including VAT 19% , [plus shipping]
Qty
Groove Tubes SUB-3
6SJ7 to 12AX7 (includes GT-12AX7 tube)
Groove Tubes Substi-Tubes allow the replacement of octal type preamp tubes with the more common and higher quality 9-pin miniatures by properly mating a female 9-pin socket to an 8-pin plug.
€76,27
including VAT 19% , [plus shipping]
Qty