KT88 - 6550 -KT90 - KT120 - KT150 - KT170

New Plate Current Matched Quad of Electro-Harmonix 6550 Ceramic Vacuum Tubes The 6550EH is one of the finest new production tubes for any amp using 6550 or KT88. The 6550EH offers the maximum power of any 6550 with the linearity guitar and bass players...

New Plate Current Matched Quad of Psvane UK-KT88 Black Plate Vacuum Tubes A new beam power tetrode KT88 by Matched Pair of Psvane featuring vintage-styled black plates modeling the classic British tones of the originals before it. It's hard to go wrong...

New Plate Current Matched Octet of Shuguang Treasure KT88-Z Smoked Vacuum Tubes The KT88-Z features special carbon sprayed smoked glass which helps electrons flow more smoothly and reduces noise. As a part of the treasure series, this is one of the more...

New Plate Current Matched Quad of Shuguang Treasure KT88-Z Smoked Vacuum Tubes The KT88-Z features special carbon sprayed smoked glass which helps electrons flow more smoothly and reduces noise. As a part of the treasure series, this is one of the more...

New Plate Current Matched Pair of Shuguang Treasure KT88-Z Smoked Vacuum Tubes The KT88-Z features special carbon sprayed smoked glass which helps electrons flow more smoothly and reduces noise. As a part of the treasure series, this is one of the more...

New Plate Current Tested Shuguang Treasure KT88-Z Smoked Vacuum Tube The KT88-Z features special carbon sprayed smoked glass which helps electrons flow more smoothly and reduces noise. As a part of the treasure series, this is one of the more high-end...

New Plate Current Matched Octet of Psvane UK-KT88 Black Plate Vacuum Tubes A new beam power tetrode KT88 by Matched Octet of Psvane featuring vintage-styled black plates modeling the classic British tones of the originals before it. It's hard to go wrong...

New Plate Current Matched Sextet of Psvane UK-KT88 Black Plate Vacuum Tubes A new beam power tetrode KT88 by Matched Sextet of Psvane featuring vintage-styled black plates modeling the classic British tones of the originals before it. It's hard to go...

New Plate Current Matched Pair of Psvane UK-KT88 Black Plate Vacuum Tubes A new beam power tetrode KT88 by Matched Pair of Psvane featuring vintage-styled black plates modeling the classic British tones of the originals before it. It's hard to go wrong...

New Plate Current Tested Psvane UK-KT88 Black Plate Vacuum Tube A new beam power tetrode KT88 by Psvane featuring vintage-styled black plates modeling the classic British tones of the originals before it. It's hard to go wrong with a tube designed to...

New Factory Matched Pair of Telefunken KT88 Vacuum Tubes Introduced in 1956 by GEC, the KT88 was the higher-rated answer to the 6550. The Telefunken KT88 is an incredibly durable tube that can handle taxing applications whether it is guitar or hifi...

New Factory Tested Telefunken KT88 Vacuum Tube Introduced in 1956 by GEC, the KT88 was the higher-rated answer to the 6550. The Telefunken KT88 is an incredibly durable tube that can handle taxing applications whether it is guitar or hifi amplification...

New Factory Matched Octet of Telefunken 6550 Vacuum Tubes An excellent power tube Telefunken fit for classic amps such as Ampeg, capable of delivering a full 35-watt output. This is the ideal tube for warm tones with smooth overdrive in guitar amplifiers...

New Factory Matched Quad of Telefunken 6550 Vacuum Tubes An excellent power tube Telefunken fit for classic amps such as Ampeg, capable of delivering a full 35-watt output. This is the ideal tube for warm tones with smooth overdrive in guitar amplifiers...

New Factory Matched Pair of Telefunken 6550 Vacuum Tubes An excellent power tube Telefunken fit for classic amps such as Ampeg, capable of delivering a full 35-watt output. This is the ideal tube for warm tones with smooth overdrive in guitar amplifiers...

New Factory Tested Telefunken 6550 Vacuum Tube An excellent power tube by Telefunken fit for classic amps such as Ampeg, capable of delivering a full 35-watt output. This is the ideal tube for warm tones with smooth overdrive in guitar amplifiers. They...

New Plate Current Matched Octet of Psvane KT88C Hifi (6550) Vacuum Tubes  As one of the most prominent audiophile vacuum tube manufacturers, Psvane’s designs have established a benchmark for clean and accurate sound reproduction. Along with a...

New Plate Current Matched Sextet of Psvane KT88C Hifi (6550) Vacuum Tubes As one of the most prominent audiophile vacuum tube manufacturers, Psvane’s designs have established a benchmark for clean and accurate sound reproduction. Along with a build...

New Plate Current Matched Quad of Psvane KT88C Hifi (6550) Vacuum Tubes As one of the most prominent audiophile vacuum tube manufacturers, Psvane’s designs have established a benchmark for clean and accurate sound reproduction. Along with a build...

New Plate Current Matched Pair of Psvane KT88C Hifi (6550) Vacuum Tubes As one of the most prominent audiophile vacuum tube manufacturers, Psvane’s designs have established a benchmark for clean and accurate sound reproduction. Along with a build...

New Plate Current Tested Psvane KT88C Hifi (6550) Vacuum Tube As one of the most prominent audiophile vacuum tube manufacturers, Psvane’s designs have established a benchmark for clean and accurate sound reproduction. Along with a build quality...

New Matched Pair of Tung-Sol KT170 Vacuum Tubes We are so happy to carry Tung-Sol’s newest high power tetrode. The wonderful folks at Tung-Sol have done it again, and are introducing a brand new tube to the world! We’re so happy that at least...

New Tung-Sol KT170 Vacuum Tube We are so happy to carry Tung-Sol’s newest high power tetrode. The wonderful folks at Tung-Sol have done it again, and are introducing a brand new tube to the world! We’re so happy that at least one company is...

New Plate Current Matched Octet of Sovtek 6550WE Vacuum Tubes The Sovtek 6550WE features a higher transconductance, higher output power, and an excellent sound performance. It will bring out that excellent range for any guitar amp. Will work...

New Plate Current Matched Sextet of Sovtek 6550WE Vacuum Tubes The Sovtek 6550WE features a higher transconductance, higher output power, and an excellent sound performance. It will bring out that excellent range for any guitar amp. Will work...

New Plate Current Matched Quad of Sovtek 6550WE Vacuum Tubes The Sovtek 6550WE features a higher transconductance, higher output power, and an excellent sound performance. It will bring out that excellent range for any guitar amp. Will work in...

New Plate Current Matched Pair of Sovtek 6550WE Vacuum Tubes The Sovtek 6550WE features a higher transconductance, higher output power, and an excellent sound performance. It will bring out that excellent range for any guitar amp. Will work in...

New Plate Current Tested Sovtek 6550WE Vacuum Tube The Sovtek 6550WE features a higher transconductance, higher output power, and an excellent sound performance. It will bring out that excellent range for any guitar amp. Will work in place...

Brand New Plate Current Matched Octet of Svetlana KT88-SV Gold Grid Tubes The Svetlana KT88SV features a very high plate dissipation rating to improve upon already excellent reliability and presentation. Alongside a gold plated grid, tri-plate anode,...

Brand New Plate Current Matched Sextet of Svetlana KT88-SV Gold Grid Tubes The Svetlana KT88SV features a very high plate dissipation rating to improve upon already excellent reliability and presentation. Alongside a gold plated grid, tri-plate anode,...

New Plate Current Matched Quad of Svetlana KT88-SV Gold Grid Vacuum Tubes The Svetlana KT88SV features a very high plate dissipation rating to improve upon already excellent reliability and presentation. Alongside a gold plated grid, tri-plate anode,...

New Plate Current Matched Pair of Svetlana KT88-SV Gold Grid Vacuum Tubes The Svetlana KT88SV features a very high plate dissipation rating to improve upon already excellent reliability and presentation. Alongside a gold plated grid, tri-plate anode,...

New Plate Current Tested Svetlana KT88-SV Gold Grid Vacuum Tube The Svetlana KT88SV features a very high plate dissipation rating to improve upon already excellent reliability and presentation. Alongside a gold plated grid, tri-plate anode, and exact...

New Plate Current Matched Sextet of Mullard Reissue KT88 / 6550 Vacuum Tubes Directly from the manufacturer: "This is an exact copy of the KT88 valves that were manufactured by Marconi-Osram for Marshall in the late 1960s and 1970s. Excellent...

New Plate Current Matched Quad of Mullard Reissue KT88 / 6550 Vacuum Tubes Directly from the manufacturer: "This is an exact copy of the KT88 valves that were manufactured by Marconi-Osram for Marshall in the late 1960s and 1970s. Excellent replacement...

New Plate Current Matched Pair of Mullard Reissue KT88 / 6550 Vacuum Tubes Directly from the manufacturer: "This is an exact copy of the KT88 valves that were manufactured by Marconi-Osram for Marshall in the late 1960s and 1970s. Excellent replacement...

New Plate Current Tested Mullard Reissue KT88 / 6550 Vacuum Tube Directly from the manufacturer: "This is an exact copy of the KT88 valves that were manufactured by Marconi-Osram for Marshall in the late 1960s and 1970s. Excellent replacement output...

New Current Matched Octet of JJ KT88 Vacuum Tubes JJ is an undisputed leader in modern vacuum tube manufacturing, and for good reason. In the power stage, their KT88 (6550) is an industry favorite, as it provides excellent sonic performance along with...

New Current Matched Sextet of JJ KT88 Vacuum Tubes JJ is an undisputed leader in modern vacuum tube manufacturing, and for good reason. In the power stage, their KT88 (6550) is an industry favorite, as it provides excellent sonic performance along with...

New Current Matched Quad of JJ KT88 Vacuum Tubes JJ is an undisputed leader in modern vacuum tube manufacturing, and for good reason. In the power stage, their KT88 (6550) is an industry favorite, as it provides excellent sonic performance along with...