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
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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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...NP057-4Now: $248.42Was: $276.02 -
On Sale
New Shuguang Treasure KT88-Z Smoked Vacuum Tube
Shuguang
Now: $75.54Was: $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...NP242-1Now: $75.54Was: $94.42 -
On Sale
New Matched Quad (4) Psvane KT66GC GEC Genalex Replica Tubes
Psvane
Now: $886.14Was: $984.60New Plate Current Matched Quad of Psvane KT66GC Vacuum Tubes Modeled directly after the original GEC KT66s, the Psvane KT66GC features the same curved base and stout envelope. Along with smoked glass, the faithfulness to classic KT66s of the past shine...NP243-4Now: $886.14Was: $984.60 -
On Sale
New Matched Pair (2) Psvane KT66GC GEC Genalex Replica Tubes
Psvane
Now: $443.33Was: $492.59New Plate Current Matched Pair of Psvane KT66GC Vacuum Tubes Modeled directly after the original GEC KT66s, the Psvane KT66GC features the same curved base and stout envelope. Along with smoked glass, the faithfulness to classic KT66s of the past shine...NP243-2Now: $443.33Was: $492.59 -
On Sale
New Psvane KT66GC GEC Genalex Replica
Psvane
Now: $209.01Was: $232.23New Plate Current Tested Psvane KT66GC Vacuum Tube Modeled directly after the original GEC KT66s, the Psvane KT66GC features the same curved base and stout envelope. Along with smoked glass, the faithfulness to classic KT66s of the past shine through in...NP243-1Now: $209.01Was: $232.23 -
On Sale
New Psvane 5881 / 6L6GB Hifi Vacuum Tube
Psvane
Now: $31.82Was: $35.35New Plate Current Tested Psvane 5881 / 6L6GB Hifi Vacuum Tube Psvane is famous for their reliable and great sounding tubes and this 5881 is no exception. Fit for any audiophile's high-end needs or any tone-chasing guitarist's amp. A fresh take on...NP241-1Now: $31.82Was: $35.35 -
On Sale
New Psvane UK-KT88 Black Plate Vacuum Tube
Psvane
Now: $71.47Was: $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...NP238-1Now: $71.47Was: $79.41 -
On Sale
New Psvane UK-EL34 Black Plate Vacuum Tube
Psvane
Now: $31.06Was: $34.51New Plate Current Tested Psvane UK-EL34 Black Plate Vacuum Tube The Psvane UK-EL34 is a unique return of vintage-styled black plate sound that will be a great upgrade for any compatible amp. This tube was designed to reproduce the classic Mullard sound...NP237-1Now: $31.06Was: $34.51 -
On Sale
New Telefunken 6550 Vacuum Tube
Telefunken
Now: $91.50Was: $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...NP206-1Now: $91.50Was: $101.67 -
On Sale
New Matched Quad (4) Psvane KT88C Hifi Vacuum Tubes
Psvane
Now: $227.93Was: $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...NP205-4Now: $227.93Was: $253.26 -
On Sale
New Matched Pair (2) Psvane KT88C Hifi Vacuum Tubes
Psvane
Now: $114.23Was: $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...NP205-2Now: $114.23Was: $126.92 -
On Sale
New Matched Quad (4) Psvane EL34C HiFi Series Vacuum Tubes
Psvane
Now: $123.74Was: $137.49New Plate Current Matched Quad of Psvane EL34C HiFi Series Vacuum Tubes The Psvane EL34C HiFi is the upgraded version to the beloved EL34B. These feature an improved plate structure for better reliability. The HiFi series is Psvane’s budget series...NP186-4Now: $123.74Was: $137.49 -
On Sale
New Matched Quad (4) Telefunken EL34-TK Reissue Vacuum Tubes
Telefunken
Now: $280.85Was: $312.05New Factory Matched Quad of Telefunken Black Diamond EL34-TK Reissue Vacuum Tubes The EL34-TK has been designed to handle a slightly higher grid voltage than the traditional EL34. Offering a tight low end and smooth mids, it will bring new life to guitar...NP247-4Now: $280.85Was: $312.05 -
NOS Soviet 6P3S / 6L6GC Vacuum Tube
$12.95New Old Stock Plate Current Tested Soviet 6P3S (6L6GC) * A note on the 6P3S as a 6L6GC substitute * There are various datasheets floating around that show varying specifications on these for plate voltages, wattage output, etc. Technically, they...MUL161-1$12.95 -
On Sale
New Matched Quad (4) Tung-Sol 6L6G Fat Bottle Vacuum Tubes
Tung-Sol
Now: $307.42Was: $341.58New Plate Current Matched Quad of Tung-Sol Reissue 6L6G Fat Bottle Vacuum Tubes The Tung-Sol 6L6G features the same internal construction as the 6L6G straight bottle, but is put into the traditional larger shouldered glass. Will work in place...NP141-4Now: $307.42Was: $341.58 -
On Sale
New Matched Pair (2) Tung-Sol 6L6G Fat Bottle Vacuum Tubes
Tung-Sol
Now: $153.97Was: $171.08New Plate Current Matched Pair of Tung-Sol Reissue 6L6G Fat Bottle Vacuum Tubes The Tung-Sol 6L6G features the same internal construction as the 6L6G straight bottle, but is put into the traditional larger shouldered glass. Will work in place...NP141-2Now: $153.97Was: $171.08 -
On Sale
New Tung-Sol 6L6G Fat Bottle Vacuum Tube
Tung-Sol
Now: $73.16Was: $81.29New Plate Current Tested Tung-Sol Reissue 6L6G Fat Bottle Vacuum Tube The Tung-Sol 6L6G features the same internal construction as the 6L6G straight bottle, but is put into the traditional larger shouldered glass. Will work in place...NP141-1Now: $73.16Was: $81.29 -
On Sale
New Matched Quad (4) Psvane KT88-T Classic MKII II Series Vacuum Tubes
Psvane
Now: $381.47Was: $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,...NP106-4Now: $381.47Was: $423.86 -
On Sale
New Matched Pair (2) Psvane KT88-T Classic MKII Series Vacuum Tubes
Psvane
Now: $191.00Was: $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,...NP106-2Now: $191.00Was: $212.22 -
On Sale
![Plate Current Matched Octet (8) Svetlana EL34 [Winged =C= Reissue] Vacuum Tubes](https://cdn11.bigcommerce.com/s-dfccaj35/images/stencil/350x350/products/44597/45932/NP119-8__96923.1652199761.JPG?c=2 "Plate Current Matched Octet (8) Svetlana EL34 [Winged =C= Reissue] Vacuum Tubes")
New Matched Octet (8) Svetlana EL34 Vacuum Tubes
Svetlana
Now: $269.90Was: $299.89New Plate Current Matched Octet (8) Svetlana EL34 (6CA7) Vacuum Tubes Svetlana vacuum tubes are among the best available at any price point, and are a great choice for anyone looking for high fidelity and reliability. Famous for their overall headroom...NP119-8Now: $269.90Was: $299.89 -
On Sale
![Plate Current Matched Sextet (6) Svetlana EL34 [Winged =C= Reissue] Vacuum Tubes](https://cdn11.bigcommerce.com/s-dfccaj35/images/stencil/350x350/products/44596/45931/NP119-6__16688.1652199758.JPG?c=2 "Plate Current Matched Sextet (6) Svetlana EL34 [Winged =C= Reissue] Vacuum Tubes")
New Matched Sextet (6) Svetlana EL34 Vacuum Tubes
Svetlana
Now: $204.43Was: $227.14New Plate Current Matched Sextet of Svetlana EL34 (6CA7) Vacuum Tubes Svetlana vacuum tubes are among the best available at any price point, and are a great choice for anyone looking for high fidelity and reliability. Famous for their overall headroom...NP119-6Now: $204.43Was: $227.14 -
On Sale
![Plate Current Matched Quad (4) Svetlana EL34 [Winged =C= Reissue] Vacuum Tubes](https://cdn11.bigcommerce.com/s-dfccaj35/images/stencil/350x350/products/44595/45930/NP119-4__24621.1653405417.JPG?c=2 "Plate Current Matched Quad (4) Svetlana EL34 [Winged =C= Reissue] Vacuum Tubes")
New Matched Quad (4) Svetlana EL34 Vacuum Tubes
Svetlana
Now: $135.21Was: $150.23New Plate Current Matched Quad of Svetlana EL34 (6CA7) Vacuum Tubes Svetlana vacuum tubes are among the best available at any price point, and are a great choice for anyone looking for high fidelity and reliability. Famous for their overall headroom...NP119-4Now: $135.21Was: $150.23 -
On Sale
![Plate Current Matched Pair (2) Svetlana EL34 [Winged =C= Reissue] Vacuum Tubes](https://cdn11.bigcommerce.com/s-dfccaj35/images/stencil/350x350/products/44594/45929/NP119-2__71929.1652199745.JPG?c=2 "Plate Current Matched Pair (2) Svetlana EL34 [Winged =C= Reissue] Vacuum Tubes")
New Matched Pair (2) Svetlana EL34 Vacuum Tubes
Svetlana
Now: $68.90Was: $76.55New Plate Current Matched Pair of Svetlana EL34 (6CA7) Vacuum Tubes Svetlana vacuum tubes are among the best available at any price point, and are a great choice for anyone looking for high fidelity and reliability. Famous for their overall headroom...NP119-2Now: $68.90Was: $76.55 -
On Sale
![Plate Current Tested Svetlana EL34 6CA7 [Winged =C= Reissue] Vacuum Tube New](https://cdn11.bigcommerce.com/s-dfccaj35/images/stencil/350x350/products/44593/45928/NP119-1__93014.1652199740.JPG?c=2 "Plate Current Tested Svetlana EL34 6CA7 [Winged =C= Reissue] Vacuum Tube New")
New Svetlana EL34 Vacuum Tube
Svetlana
Now: $33.20Was: $36.89New Plate Current Tested Svetlana EL34 (6CA7) Vacuum Tube Svetlana vacuum tubes are among the best available at any price point, and are a great choice for anyone looking for high fidelity and reliability. Famous for their overall headroom and clarity,...NP119-1Now: $33.20Was: $36.89 -
On Sale
New Matched Octet (8) Electro-Harmonix 6L6GC Vacuum Tubes
Electro-Harmonix
Now: $236.71Was: $263.01New Plate Current Matched Octet of Electro-Harmonix 6L6GC Vacuum Tubes Modeled after the vintage RCA 6L6GC black plate, the 6L6EH features large plate dimensions and improved grid structure for increased power handling capabilities. Also features mica...NP069-8Now: $236.71Was: $263.01 -
On Sale
New Matched Sextet (6) Electro-Harmonix 6L6GC Vacuum Tubes
Electro-Harmonix
Now: $179.17Was: $199.08New Plate Current Matched Sextet of Electro-Harmonix 6L6GC Vacuum Tubes Modeled after the vintage RCA 6L6GC black plate, the 6L6EH features large plate dimensions and improved grid structure for increased power handling capabilities. Also features mica...NP069-6Now: $179.17Was: $199.08 -
On Sale
New Matched Quad (4) Electro-Harmonix 6L6GC Vacuum Tubes
Electro-Harmonix
Now: $118.61Was: $131.79New Plate Current Matched Quad of Electro-Harmonix 6L6GC Vacuum Tubes Modeled after the vintage RCA 6L6GC black plate, the 6L6EH features large plate dimensions and improved grid structure for increased power handling capabilities. Also features mica...NP069-4Now: $118.61Was: $131.79 -
On Sale
New Matched Pair (2) Electro-Harmonix 6L6GC Vacuum Tubes
Electro-Harmonix
Now: $60.40Was: $67.11New Plate Current Matched Pair of Electro-Harmonix 6L6GC Vacuum Tubes Modeled after the vintage RCA 6L6GC black plate, the 6L6EH features large plate dimensions and improved grid structure for increased power handling capabilities. Also features mica...NP069-2Now: $60.40Was: $67.11 -
On Sale
New Electro-Harmonix 6L6GC Vacuum Tube
Electro-Harmonix
Now: $29.14Was: $32.38New Plate Current Tested Electro-Harmonix 6L6GC Vacuum Tube Modeled after the vintage RCA 6L6GC black plate, the 6L6EH features large plate dimensions and improved grid structure for increased power handling capabilities. Also features mica spacers with...NP069-1Now: $29.14Was: $32.38 -
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...NP068-8Now: $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...NP068-4Now: $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...NP068-2Now: $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...NP068-1Now: $70.79Was: $78.66 -
On Sale
New Matched Octet (8) Electro-Harmonix KT88 Vacuum Tubes
Electro-Harmonix
Now: $501.70Was: $557.44New Plate Current Matched Octet 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...NP067-8Now: $501.70Was: $557.44 -
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...NP067-4Now: $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...NP067-2Now: $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...NP067-1Now: $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...NP065-8Now: $251.87Was: $279.86 -
On Sale
New Matched Sextet (6) Electro-Harmonix EL34 Vacuum Tubes
Electro-Harmonix
Now: $190.91Was: $212.12New Gain Matched Sextet 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...NP065-6Now: $190.91Was: $212.12 -
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...NP065-4Now: $126.20Was: $140.22