Medium & Large
Medium and Large power tubes, typically with Octal bases.
- KT88 - 6550 -KT90 - KT120 - KT150 - KT170
- 6L6 - 5881 -KT66 - 7027
- EL34 - 6CA7 - KT77
- 6V6 - 6F6 - 6K6 - 7408
- 6AS7 - 6080 - 421A - 5998
- 6JSC6C - 6JE6C - 6LQ6
- 807 -5933 - 6BG6 - 1625
- 7591 - 7868 - 6GM5
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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 -
On Sale
New Matched Quad (4) Electro-Harmonix KT88 Vacuum Tubes
Electro-Harmonix
Now: $253.40Was: $281.55New Plate Current Matched Quad of Electro-Harmonix KT88 Vacuum Tubes The Electro-Harmonix KT88 is different than the Electro-Harmonix 6550. While they are both great tubes, the KT88 version is modeled after the British original and has a different...Now: $253.40Was: $281.55 -
On Sale
New Matched Pair (2) Electro-Harmonix KT88 Vacuum Tubes
Electro-Harmonix
Now: $126.95Was: $141.06New Plate Current Matched Pair of Electro-Harmonix KT88 Vacuum Tubes The Electro-Harmonix KT88 is different than the Electro-Harmonix 6550. While they are both great tubes, the KT88 version is modeled after the British original and has a different...Now: $126.95Was: $141.06 -
On Sale
New Electro-Harmonix KT88 Vacuum Tube
Electro-Harmonix
Now: $60.48Was: $67.20New Plate Current Tested Electro-Harmonix KT88 Vacuum Tube The Electro-Harmonix KT88 is different than the Electro-Harmonix 6550. While they are both great tubes, the KT88 version is modeled after the British original and has a different internal plate...Now: $60.48Was: $67.20 -
On Sale
New Matched Octet (8) Electro-Harmonix EL34 Vacuum Tubes
Electro-Harmonix
Now: $251.87Was: $279.86New Gain Matched Octet of Electro-Harmonix EL34 Vacuum Tubes The Electro-Harmonix EL34EH is extremely musical and predictable with a sound that is rich, smooth, and detailed without being edgy. It is the perfect EL34 for vintage equipment and a sure way...Now: $251.87Was: $279.86 -
On Sale
New Matched Quad (4) Electro-Harmonix EL34 Vacuum Tubes
Electro-Harmonix
Now: $126.20Was: $140.22New Plate Current Matched Quad of Electro-Harmonix EL34 Vacuum Tubes The Electro-Harmonix EL34EH is extremely musical and predictable with a sound that is rich, smooth, and detailed without being edgy. It is the perfect EL34 for vintage equipment and a...Now: $126.20Was: $140.22 -
On Sale
New Matched Pair (2) Electro-Harmonix EL34 Vacuum Tubes
Electro-Harmonix
Now: $64.39Was: $71.54New Plate Current Matched Pair of Electro-Harmonix EL34 Vacuum Tube The Electro-Harmonix EL34EH is extremely musical and predictable with a sound that is rich, smooth, and detailed without being edgy. It is the perfect EL34 for vintage equipment and a...Now: $64.39Was: $71.54 -
On Sale
New Electro-Harmonix EL34 Vacuum Tube
Electro-Harmonix
Now: $31.09Was: $34.54New Plate Current Tested Electro-Harmonix EL34 Vacuum Tube The Electro-Harmonix EL34EH is extremely musical and predictable with a sound that is rich, smooth, and detailed without being edgy. It is the perfect EL34 for vintage equipment and a sure way to...Now: $31.09Was: $34.54 -
On Sale
New Matched Octet (8) Electro-Harmonix 6V6 Vacuum Tubes
Electro-Harmonix
Now: $208.05Was: $231.17New Plate Current Matched Octet of Electro-Harmonix 6V6 (6V6GT) Vacuum Tubes The all new 6V6EH combines a specially developed cathode coating, careful alignment of the grid, and tri-alloy plate material to create a rugged yet wonderful-sounding 6V6 that...Now: $208.05Was: $231.17