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 Mullard KT88 / 6550 Vacuum Tube
Mullard
Now: $54.30Was: $60.33New 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...Now: $54.30Was: $60.33 -
On Sale
New Current Matched Octet (8) JJ KT88 Vacuum Tubes
JJ Electronic
Now: $496.55Was: $551.72New 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...Now: $496.55Was: $551.72 -
On Sale
New Current Matched Sextet (6) JJ KT88 Vacuum Tubes
JJ Electronic
Now: $375.14Was: $416.82New 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...Now: $375.14Was: $416.82 -
On Sale
New Current Matched Quad (4) JJ KT88 Vacuum Tubes
JJ Electronic
Now: $250.82Was: $278.69New 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...Now: $250.82Was: $278.69 -
On Sale
New Current Matched Pair (2) JJ KT88 Vacuum Tubes
JJ Electronic
Now: $125.67Was: $139.63New Current Matched Pair 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...Now: $125.67Was: $139.63 -
New Psvane KT88-T Classic MKII Series Vacuum Tube
Psvane
$100.60New Plate Current Tested Psvane KT88-T Classic MKII Series (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...$100.60 -
On Sale
New Matched Quad (4) Tung-Sol KT150 Vacuum Tubes
Tung-Sol
Now: $474.25Was: $526.94New Plate Current Matched Quad of Tung-Sol KT150 Vacuum Tubes With a massive plate dissipation of 70 watts, the Tung-Sol KT150 is the most powerful octal beam tetrode ever produced. A pair of KT150s can allow an amplifier with a power output approaching...Now: $474.25Was: $526.94 -
On Sale
New Matched Pair (2) Tung-Sol KT150 Vacuum Tubes
Tung-Sol
Now: $239.67Was: $266.30New Plate Current Matched Pair (2) Tung-Sol KT150 Vacuum Tubes With a massive plate dissipation of 70 watts, the Tung-Sol KT150 is the most powerful octal beam tetrode ever produced. A pair of KT150s can allow an amplifier with a power output approaching...Now: $239.67Was: $266.30 -
On Sale
New Tung-Sol KT150 Vacuum Tube
Tung-Sol
Now: $112.35Was: $124.83New Tung-Sol KT150 Vacuum Tube With a massive plate dissipation of 70 watts, the Tung-Sol KT150 is the most powerful octal beam tetrode ever produced. A pair of KT150s can allow an amplifier with a power output approaching 300 watts to be built. The...Now: $112.35Was: $124.83 -
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