KT88 - 6550 -KT90 - KT120 - KT150 - KT170
The KT90, KT120 and KT150 are all tubes that were designed in the modern era. They are all loosely based on the KT88 but with much more power. You can always sub a KT150 for a KT120 or KT90 but never the other way around. The KT88 and 6550 are always interchangeable.
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On Sale
New Matched Quad (4) Electro-Harmonix 6550 Ceramic Vacuum Tubes
Electro-Harmonix
Now: $248.42Was: $276.02New 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...Now: $248.42Was: $276.02 -
New Shuguang Treasure KT88-Z Smoked Vacuum Tube
Shuguang
$94.42New 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...$94.42 -
New Psvane UK-KT88 Black Plate Vacuum Tube
Psvane
$79.41New 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...$79.41 -
New Telefunken 6550 Vacuum Tube
Telefunken
$101.67New 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...$101.67 -
New Matched Quad (4) Psvane KT88C Hifi Vacuum Tubes
Psvane
$253.26New 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...$253.26 -
New Matched Pair (2) Psvane KT88C Hifi Vacuum Tubes
Psvane
$126.92New 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...$126.92 -
New Matched Quad (4) Psvane KT88-T Classic MKII II Series Vacuum Tubes
Psvane
$423.86New Plate Current Matched Quad of Psvane KT88-T Classic MKII Series (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,...$423.86 -
New Matched Pair (2) Psvane KT88-T Classic MKII Series Vacuum Tubes
Psvane
$212.22New Plate Current Matched Pair of Psvane KT88-T Classic MKII Series (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,...$212.22 -
On Sale
New Matched Octet (8) Electro-Harmonix KT90 Vacuum Tubes
Electro-Harmonix
Now: $593.13Was: $659.03New Plate Current Matched Octet of Electro-Harmonix KT90 Vacuum Tubes This tube has a bit more power than a KT88 but with the classic warm, bass-drenched sound of an EL34. The tube really is the best of both worlds. These are drop-in substitutes for a...Now: $593.13Was: $659.03 -
On Sale
New Matched Quad (4) Electro-Harmonix KT90 Vacuum Tubes
Electro-Harmonix
Now: $299.11Was: $332.34New Plate Current Matched Quad of Electro-Harmonix KT90 Vacuum Tubes This tube has a bit more power than a KT88 but with the classic warm, bass-drenched sound of an EL34. The tube really is the best of both worlds. These are drop-in substitutes for a...Now: $299.11Was: $332.34 -
On Sale
New Matched Pair (2) Electro-Harmonix KT90 Vacuum Tubes
Electro-Harmonix
Now: $149.81Was: $166.46New Plate Current Matched Pair of Electro-Harmonix KT90 Vacuum Tubes This tube has a bit more power than a KT88 but with the classic warm, bass-drenched sound of an EL34. The tube really is the best of both worlds. These are drop-in substitutes for a...Now: $149.81Was: $166.46 -
On Sale
New Electro-Harmonix KT90 Vacuum Tube
Electro-Harmonix
Now: $70.79Was: $78.66New Plate Current Tested Electro-Harmonix KT90 Vacuum Tubes This tube has a bit more power than a KT88 but with the classic warm, bass-drenched sound of an EL34. The tube really is the best of both worlds. These are drop-in substitutes for a 6550 or KT88...Now: $70.79Was: $78.66