1000A - 9999Z

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 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 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 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...

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 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 Gain Matched Pair of Tung-Sol Reissue EF806S / EF86 / 6267 Gold Pins Vacuum Tubes Modeled after the Telefunken EF806S, the higher end version of the 6267 or EF86, is of premium quality and durability. Very effective as an extra low noise tube. Gold...

New Gain Tested Tung-Sol Reissue EF806S / EF86 / 6267 Gold Pins Vacuum Tube Modeled after the Telefunken EF806S, the higher end version of the 6267 or EF86, is of premium quality and durability. Very effective as an extra low noise tube. Gold pins...

New Plate Current Tested JJ KT88 Vacuum Tube 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 great...

New 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...

New Plate Current Matched Pair of Tung-Sol 7591A Reissue Vacuum Tubes Built around the same specs as the original Tung-Sol 7591A, this is the perfect choice for those looking to replace tubes in their Scotts, Harman Kardons, Fischers, or any amp that...

New Plate Current Tested Tung-Sol 7591A Reissue Vacuum Tube  Built around the same specs as the original Tung-Sol 7591A, this is the perfect choice for those looking to replace tubes in their Scotts, Harman Kardons, Fischers, or any amp that calls...

New Plate Current Matched Pair of Electro-Harmonix 7868 Vacuum Tubes  Thanks to Electro-Harmonix we have this wonderful new production 7868. This is the one and only new production 7868 currently being made. With a warm, rich tone and a great price...

New Plate Current Tested Electro-Harmonix 7868 Vacuum Tube Thanks to Electro-Harmonix we have this wonderful new production 7868. This is the one and only new production 7868 currently being made. With a warm, rich tone and a great price point they are a...

New Gain Matched Pair of Electro-Harmonix EF86 (6267) Vacuum Tubes There is finally a new production EF86 and a great audio pentode for many different applications. The vintage EF86s, while having great tone, are notoriously plagued with noise...

New Gain Tested Electro-Harmonix EF86 (6267) Vacuum Tube There is finally a new production EF86 and a great audio pentode for many different applications. The vintage EF86s, while having great tone, are notoriously plagued with noise. Electro-Harmonix...

New Plate Current Matched Pair of Electro-Harmonix 6973 Vacuum Tubes Thanks to Electro-Harmonix the 6973 is finally affordable and easy to find! This tube has long caused trouble as the originals are so scarce. Many companies were re-branding the less...

New Plate Current Tested Electro-Harmonix 6973 Vacuum Tube Thanks to Electro-Harmonix the 6973 is finally affordable and easy to find! This tube has long caused trouble as the originals are so scarce. Many companies were re-branding the less powerful...

New 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...

New 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...

New Plate Current Tested Electro-Harmonix 6550EH Vacuum Tube  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 want. With...

New Plate Current Tested Tung-Sol 6550 (KT88) Coke Bottle Reissue Vacuum Tube This 6550 has everything its vintage counterpart featured down to the bottle shape and size, three getter construction, gold grids, and carbonized plates. From the construction...

New Plate Current Tested Tung-Sol KT120 Vacuum Tube The KT120 is an incredible tube. Essentially a KT88 / 6550 on steroids, they are capable of pushing 150 watts per pair of clean power in a push-pull configuration. Because of the high wattage, these...

New Plate Current Tested Genalex Gold Lion KT88 (6550) Vacuum Tube These are as close to the original Genalex KT88s as you could possibly get. Made in Russia, they look identical to the originals down to the plate structure. They even have gold plated...

New Plate Current Matched Pair of JJ 7591 Vacuum Tubes There is finally a reliable 7591 that rivals the originals. These JJs are an excellent choice for your old Scott amplifier as well as many others that used the famous old 7591. The vintage 7591s are...

New Plate Current Tested JJ 7591 Vacuum Tube There is finally a reliable 7591 that rivals the originals. These JJs are an excellent choice for your old Scott amplifier as well as many others that used the famous old 7591. The vintage 7591s are almost...

New Plate Current Tested Svetlana 6550C Vacuum Tube An excellent true 6550 that'll make your amp sing. These are known for their robust quality and classic American 6550 tone. Will work in place of: 6550C, 6550, KT88, 6550A Testing and/or...

Tube Type / Number: 8595Actual Brand*: AmperexPrinted Brand: AmperexQuantity: 1 Piece-SingleMatching Date Codes? Plate Construction: GreyGetter Construction: Top OCountry of Manufacture: USAVisible Date Codes: Lettering Condition: 90 PercentNumber of...

Tube Type / Number: 6135Actual Brand*: GE 5 StarPrinted Brand: GE 5 StarQuantity: 1 Piece-SingleMatching Date Codes? Plate Construction: Grey T Getter Construction: Top OCountry of Manufacture: USAVisible Date Codes: 74-26 188-5Lettering Condition: 50...

Tube Type / Number: 5847/404AActual Brand*: MullardPrinted Brand: MullardQuantity: 1 Piece-SingleMatching Date Codes? Plate Construction: BlackGetter Construction: Top []Country of Manufacture: USAVisible Date Codes: Lettering Condition: 50...

Tube Type / Number: 5847 [404A]Actual Brand*: Amperex PQPrinted Brand: Amperex PQQuantity: 1 Piece-SingleMatching Date Codes? Plate Construction: GreyGetter Construction: Top True DCountry of Manufacture: HollandVisible Date Codes: 60Lettering...

Tube Type / Number: 1221 [Hi-Fi 6C6]Actual Brand*: SylvaniaPrinted Brand: SylvaniaQuantity: 1 Piece-SingleMatching Date Codes? Plate Construction: Getter Construction: BottomCountry of Manufacture: USAVisible Date Codes: T9RLettering Condition: 90...

Tube Type / Number: 4652/8042 [High-End AX1]Actual Brand*: RCAPrinted Brand: RCAQuantity: 1 Piece-SingleMatching Date Codes? Plate Construction: BlackGetter Construction: TopCountry of Manufacture: USAVisible Date Codes: FLettering Condition: 90...

Tube Type / Number: VT-241 [1201 / 7E5]Actual Brand*: SylvaniaPrinted Brand: SylvaniaQuantity: 3 Pieces-Matched TrioMatching Date Codes? NoPlate Construction: Getter Construction: TopCountry of Manufacture: USAVisible Date Codes: Lettering Condition:...

Tube Type / Number: USN-CHS-1201 [7E5]Actual Brand*: SylvaniaPrinted Brand: SylvaniaQuantity: 4 Pieces-Matched QuadMatching Date Codes? NoPlate Construction: Getter Construction: TopCountry of Manufacture: USAVisible Date Codes: Lettering Condition:...

Tube Type / Number: USN-CHS-1201 [7E5]Actual Brand*: SylvaniaPrinted Brand: SylvaniaQuantity: 3 Pieces-Matched TrioMatching Date Codes? NoPlate Construction: Getter Construction: TopCountry of Manufacture: USAVisible Date Codes: Lettering Condition:...

Tube Type / Number: USN-CHS-1201 [7E5]Actual Brand*: SylvaniaPrinted Brand: SylvaniaQuantity: 3 Pieces-Matched TrioMatching Date Codes? NoPlate Construction: Getter Construction: TopCountry of Manufacture: USAVisible Date Codes: Lettering Condition:...

Tube Type / Number: USN-CHS-1201 [7E5]Actual Brand*: SylvaniaPrinted Brand: SylvaniaQuantity: 3 Pieces-Matched TrioMatching Date Codes? NoPlate Construction: Getter Construction: TopCountry of Manufacture: USAVisible Date Codes: Lettering Condition:...

Tube Type / Number: USN-CHS-1201 [7E5]Actual Brand*: SylvaniaPrinted Brand: SylvaniaQuantity: 2 Pieces-Matched PairMatching Date Codes? NoPlate Construction: Getter Construction: TopCountry of Manufacture: USAVisible Date Codes: Z2Lettering Condition:...