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MATCHED QUAD (4) GE 6550 (KT88) 3 Disc Getter VINTAGE Power VACUUM TUBES A.8159
MATCHED QUAD (4) GE 6550 (KT88) 3 Disc Getter VINTAGE Power VACUUM TUBES A.8159

$349.95

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Factory Platinum Matched Quad Svetlana 6550 6550C tubes, BRAND NEW in Box !
Factory Platinum Matched Quad Svetlana 6550 6550C tubes, BRAND NEW in Box !

$251.96

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NOS/NIB 1950s Tung Sol Factory Matched Quad CK6550 6550 Tubes MINT Test 98-99%
NOS/NIB 1950s Tung Sol Factory Matched Quad CK6550 6550 Tubes MINT Test 98-99%

$2195.00

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QUAD / 4 GE General Electric 6550A / 6550 Vacuum Tubes & Boxes TV-7 Tested
QUAD / 4 GE General Electric 6550A / 6550 Vacuum Tubes & Boxes TV-7 Tested

$249.60

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6550C QUAD OF AMPLIFIER POWER TUBES TEST EXCELLENT GROOVE TUBES COKE BOTTLE
6550C QUAD OF AMPLIFIER POWER TUBES TEST EXCELLENT GROOVE TUBES COKE BOTTLE

$120.00

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Matched Quad Svetlana SV6550C KT88 6550 tubes Tested NEW
Matched Quad Svetlana SV6550C KT88 6550 tubes Tested NEW

$225.00

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Brand New Factory Matched Quad 4x Sovtek 6550WE Vacuum Tubes
Brand New Factory Matched Quad 4x Sovtek 6550WE Vacuum Tubes

$245.95

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Philips 6550 matched quad NOS
Philips 6550 matched quad NOS

$450.00

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Matched Quad Philips ECG - Sylvania 6550 Tubes / KT2
Matched Quad Philips ECG - Sylvania 6550 Tubes / KT2

$295.00

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Matched Quad Philips ECG - Sylvania 6550 Tubes / KT1
Matched Quad Philips ECG - Sylvania 6550 Tubes / KT1

$295.00

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Matched Quad Tung Sol 6550 3 Hole Plate OOO Getter Amplitrex Strong SAME DATES
Matched Quad Tung Sol 6550 3 Hole Plate OOO Getter Amplitrex Strong SAME DATES

$560.00

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KT88-T / Matched Quad / LINLAI / Perfect T Grade / Audio 6550 / Vacuum Tube Amp
KT88-T / Matched Quad / LINLAI / Perfect T Grade / Audio 6550 / Vacuum Tube Amp

$299.66

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Quad Matched Set RCA 6550 Brand New in Original Boxes Rare Find For Audiophile
Quad Matched Set RCA 6550 Brand New in Original Boxes Rare Find For Audiophile

$746.01

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Matched Quad NOS branded “McIntosh” KT88 Tubes, Brand NEW !
Matched Quad NOS branded “McIntosh” KT88 Tubes, Brand NEW !

$369.95

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Matched Quad Svetlana Winged =c= 6550 C Tube Tested Strong #31
Matched Quad Svetlana Winged =c= 6550 C Tube Tested Strong #31

$350.00

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Matched Quad Tung Sol 6550 Tubes / KT1
Matched Quad Tung Sol 6550 Tubes / KT1

$495.00

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New Current Matched Quad (4) Electro-Harmonix 6550 Ceramic Vacuum Tubes
New Current Matched Quad (4) Electro-Harmonix 6550 Ceramic Vacuum Tubes

$299.99

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Matched Quad Sylvania 6550 Vacuum Tubes / KT4
Matched Quad Sylvania 6550 Vacuum Tubes / KT4

$295.00

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Mullard KT88 Quad set of tubes
Mullard KT88 Quad set of tubes

$275.00

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Brand New Matched Quad (4) Genalex Gold Lion Reissue KT88 / 6550 Vacuum Tubes
Brand New Matched Quad (4) Genalex Gold Lion Reissue KT88 / 6550 Vacuum Tubes

$403.24

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Matched Quad PSVANE Hifi KT88/C Vacuum Tube Replace 6550 KT88 For Audio DIY
Matched Quad PSVANE Hifi KT88/C Vacuum Tube Replace 6550 KT88 For Audio DIY

$189.00

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Factory Platinum Match Quad Svetlana 6550 tubes *4pcs
Factory Platinum Match Quad Svetlana 6550 tubes *4pcs

$277.14

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Factory Platinum Matched Quad Genalex Gold Lion KT88 tubes, BRAND NEW in Box !
Factory Platinum Matched Quad Genalex Gold Lion KT88 tubes, BRAND NEW in Box !

$349.95

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4 Factory Platinum Matched Genalex Gold Lion KT88 KT-88 6550 For McIntosh ARC +
4 Factory Platinum Matched Genalex Gold Lion KT88 KT-88 6550 For McIntosh ARC +

$365.00

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Brand New Plate Current Matched Quad (4) Sovtek 6550WE Vacuum Tubes
Brand New Plate Current Matched Quad (4) Sovtek 6550WE Vacuum Tubes

$305.12

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TAD Premium Selected Factory Matched Quad Red Base 6550A-STR Tubes GE Remake
TAD Premium Selected Factory Matched Quad Red Base 6550A-STR Tubes GE Remake

$289.00

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Brand New Current Matched Quad Svetlana 6550 / 6550C (KT88) Reissue Vacuum Tubes
Brand New Current Matched Quad Svetlana 6550 / 6550C (KT88) Reissue Vacuum Tubes

$305.70

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Brand New Matched Quad (4) Genalex Gold Lion Reissue KT88 / 6550 Vacuum Tubes
Brand New Matched Quad (4) Genalex Gold Lion Reissue KT88 / 6550 Vacuum Tubes

$396.46

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Matched Quad Shuguang KT88-Z Vacuum Tube Replace 6550 6P3P EL34 6L6 6CA7
Matched Quad Shuguang KT88-Z Vacuum Tube Replace 6550 6P3P EL34 6L6 6CA7

$304.00

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TAD Premium Selected Factory Matched Quad Red Base KT88-STR Tubes
TAD Premium Selected Factory Matched Quad Red Base KT88-STR Tubes

$289.00

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(4) Factory Platinum Matched Genalex Gold Lion KT88 6550 For McIntosh ARC +
(4) Factory Platinum Matched Genalex Gold Lion KT88 6550 For McIntosh ARC +

$390.00

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Factory Platinum Matched Quad Sovtek 6550WE - For Audio Research, Dynaco, CJ
Factory Platinum Matched Quad Sovtek 6550WE - For Audio Research, Dynaco, CJ

$310.00

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Quad of JJ 6550 Power Vacuum Tube
Quad of JJ 6550 Power Vacuum Tube

$227.80

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KT88-D / Matched Quad / LINLAI / Titanium Screen / D-Series / Vacuum Tube 6550
KT88-D / Matched Quad / LINLAI / Titanium Screen / D-Series / Vacuum Tube 6550

$337.66

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4 NOS GE General Electric USA National Gold 6550A 6550 Vacuum tubes Matched
4 NOS GE General Electric USA National Gold 6550A 6550 Vacuum tubes Matched

$588.88

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New Plate Current Matched Quad (4) Mullard Reissue KT88 / 6550 Vacuum Tubes
New Plate Current Matched Quad (4) Mullard Reissue KT88 / 6550 Vacuum Tubes

$325.49

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Brand New Factory Matched Quad (4) Tung-Sol Reissue KT120 / KT-120 Vacuum Tubes
Brand New Factory Matched Quad (4) Tung-Sol Reissue KT120 / KT-120 Vacuum Tubes

$370.28

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New 4x Electro Harmonix KT88 | Matched Quad / Quartet / Four Tubes | Free Ship
New 4x Electro Harmonix KT88 | Matched Quad / Quartet / Four Tubes | Free Ship

$259.99

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Matched Quad PSVANE KT88-Z KT88 Vacuum Tube Replace KT120 6550 KT90 KT66 KT100
Matched Quad PSVANE KT88-Z KT88 Vacuum Tube Replace KT120 6550 KT90 KT66 KT100

$315.00

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Brand New Factory Matched QUAD (4) Tung-Sol KT150 KT-150 Vacuum Tubes DHL EXPRES
Brand New Factory Matched QUAD (4) Tung-Sol KT150 KT-150 Vacuum Tubes DHL EXPRES

$899.99

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Brand New Plate Current Matched Quad 4x Sovtek 6550 Vacuum Tubes
Brand New Plate Current Matched Quad 4x Sovtek 6550 Vacuum Tubes

$249.00

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New Plate Current Matched Quad 4x Mullard Reissue KT88 / 6550 Vacuum Tubes
New Plate Current Matched Quad 4x Mullard Reissue KT88 / 6550 Vacuum Tubes

$320.02

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NEW NIB Factory Matched Quad Shuguang Treasures KT88-T tubes - Perfectly Matched
NEW NIB Factory Matched Quad Shuguang Treasures KT88-T tubes - Perfectly Matched

$292.49

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Matched Quad LINLAI KT88 6550 Perfect HIFI Audio Vacuum Tube Amp Classic Tested
Matched Quad LINLAI KT88 6550 Perfect HIFI Audio Vacuum Tube Amp Classic Tested

$162.87

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Vacuum Tube, 6550, Tung-Sol Reissue, Apex Matched Quad, Power
Vacuum Tube, 6550, Tung-Sol Reissue, Apex Matched Quad, Power

$294.00

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Matched Quad of NOS - Audio Research KT88 Tubes -- KT1
Matched Quad of NOS - Audio Research KT88 Tubes -- KT1

$219.95

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Matched Quad LINLAI KT88-T Perfect T Grade Audio 6550 Vacuum Tube Amp Classic
Matched Quad LINLAI KT88-T Perfect T Grade Audio 6550 Vacuum Tube Amp Classic

$282.39

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Elegant edition NOS Match Quad ( 4pcs ) 90'S Shuguang 6550 ST tubes OEM products
Elegant edition NOS Match Quad ( 4pcs ) 90'S Shuguang 6550 ST tubes OEM products

$251.16

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SVETLANA 6550C Vacuum Tube Matched QUAD 4 Sets USED JAPAN vintage audio analog
SVETLANA 6550C Vacuum Tube Matched QUAD 4 Sets USED JAPAN vintage audio analog

$1079.99

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Quad of Sylvania 6550 Tubes Tested and Matched (b)
Quad of Sylvania 6550 Tubes Tested and Matched (b)

$280.00

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Quad Mathced PSVANE KT88-T MarK II Classic Grade Vacuum Tube replace CV5220 6550
Quad Mathced PSVANE KT88-T MarK II Classic Grade Vacuum Tube replace CV5220 6550

$189.99

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6550-TK Black Diamond Series Vacuum Tube Matched Quad
6550-TK Black Diamond Series Vacuum Tube Matched Quad

$410.00

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Sovtek 6550WE Matched Quad set of tubes
Sovtek 6550WE Matched Quad set of tubes

$300.00

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Two GE 6550A Tubes USA
Two GE 6550A Tubes USA

$145.00

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Platinum Factory Match 1 Quad Genalex GOLD LION KT88 Vacuum tubes 6550
Platinum Factory Match 1 Quad Genalex GOLD LION KT88 Vacuum tubes 6550

$304.50

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Audiophile Quad Matched 6550 Power Tubes Made By Sylvania Tested Very Strong
Audiophile Quad Matched 6550 Power Tubes Made By Sylvania Tested Very Strong

$518.06

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Brand New Plate Current Matched Quad 4x Sovtek 6550WE Vacuum Tubes
Brand New Plate Current Matched Quad 4x Sovtek 6550WE Vacuum Tubes

$299.99

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Telefunken EL156 KT88 Black Plates Excellent Testing Values Matched Quad
Telefunken EL156 KT88 Black Plates Excellent Testing Values Matched Quad

$1980.00

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6550C Svetlana =C= 6550 Tube
6550C Svetlana =C= 6550 Tube

$95.00

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(Sweet Edition II) Platinum Matched Quad (4) Mullard Reissue KT88 KT-88 tubes
(Sweet Edition II) Platinum Matched Quad (4) Mullard Reissue KT88 KT-88 tubes

$292.95

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Quad of Electro-Harmonix 6550 EH Power Vacuum Tube
Quad of Electro-Harmonix 6550 EH Power Vacuum Tube

$271.80

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Vacuum Tube, 6550C, Svetlana, Matched Quad, Power
Vacuum Tube, 6550C, Svetlana, Matched Quad, Power

$281.40

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KT88 BLUE version KT88 JJ Electronic Valve New 4 Tubes Quad Matched DHL EXPRESS
KT88 BLUE version KT88 JJ Electronic Valve New 4 Tubes Quad Matched DHL EXPRESS

$269.99

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Vacuum Tube, 6550WE, Sovtek, Apex Matched Quad, Power
Vacuum Tube, 6550WE, Sovtek, Apex Matched Quad, Power

$275.40

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Vacuum Tube, 6550, JJ Electronics, Apex Matched Quad, Power
Vacuum Tube, 6550, JJ Electronics, Apex Matched Quad, Power

$233.80

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Vacuum Tube, 6550, Electro-Harmonix, Matched Quad, Power
Vacuum Tube, 6550, Electro-Harmonix, Matched Quad, Power

$275.80

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Sweet Edition Ⅱ Platinum Match Quad Svetlana 6550 tubes
Sweet Edition Ⅱ Platinum Match Quad Svetlana 6550 tubes

$333.87

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GEC KT88 6550 OOO getter Near NOS Excellent Testing Values Matched Quad
GEC KT88 6550 OOO getter Near NOS Excellent Testing Values Matched Quad

$2580.00

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(Sweet edition)Platinum Factory Match QUAD 4pcs Tung-sol 6550 tubes
(Sweet edition)Platinum Factory Match QUAD 4pcs Tung-sol 6550 tubes

$371.07

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SVETLANA KT88 MATCHED QUAD NEW, RARE SED WINGED =C= St. Petersburg AUTHENTIC NOS
SVETLANA KT88 MATCHED QUAD NEW, RARE SED WINGED =C= St. Petersburg AUTHENTIC NOS

$2570.00

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Vacuum Tube, 6550, JJ Electronics, Apex Burned-In Matched Quad, Power
Vacuum Tube, 6550, JJ Electronics, Apex Burned-In Matched Quad, Power

$239.60

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Vacuum Tube, 6550A, Classic Series, Psvane, Apex Matched Quad, Power
Vacuum Tube, 6550A, Classic Series, Psvane, Apex Matched Quad, Power

$225.80

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Tungsol 6550 KT88 Solid Black Plate 3D getter NOS Tested Matched Quad
Tungsol 6550 KT88 Solid Black Plate 3D getter NOS Tested Matched Quad

$2600.00

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KT88 -98 6550 / Matched Quad / ShuGuang / Vacuum Tube / Valve Amp / Original Box
KT88 -98 6550 / Matched Quad / ShuGuang / Vacuum Tube / Valve Amp / Original Box

$175.66

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KT88-TK Black Diamond Series Vacuum Tube Matched Quad
KT88-TK Black Diamond Series Vacuum Tube Matched Quad

$450.00

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Brand New Plate Current Matched Quad 4x Svetlana KT88-SV Gold Grid Vacuum Tubes
Brand New Plate Current Matched Quad 4x Svetlana KT88-SV Gold Grid Vacuum Tubes

$324.86

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Matched Quad LINLAI KT88-D Perfect Titanium Screen D-Series Vacuum Tube Amp 6550
Matched Quad LINLAI KT88-D Perfect Titanium Screen D-Series Vacuum Tube Amp 6550

$318.31

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Matched quad Shuguang Treasure 50 years KT88-Z tubes Audio Valve tube KT88 4pcs
Matched quad Shuguang Treasure 50 years KT88-Z tubes Audio Valve tube KT88 4pcs

$369.99

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Matched Quad Shuguang KT88-T Vacuum Tube Valve Natural Sound Audio Amplifier DIY
Matched Quad Shuguang KT88-T Vacuum Tube Valve Natural Sound Audio Amplifier DIY

$435.00

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Tungsol 6550 KT88 Solid Black Plate 3D getter Tested Good Matched Quad
Tungsol 6550 KT88 Solid Black Plate 3D getter Tested Good Matched Quad

$1890.00

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(Sweet Edition II) Platinum Matched Quad (4) Mullard Reissue KT88 KT-88 tubes
(Sweet Edition II) Platinum Matched Quad (4) Mullard Reissue KT88 KT-88 tubes

$380.37

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matched Quad PSVANE KT88-T Mark II classic grade Tubes replace CV5220 6550 KT88
matched Quad PSVANE KT88-T Mark II classic grade Tubes replace CV5220 6550 KT88

$339.00

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1Quad Shuguang WEKT88 Vacuum Tube Replace 6550 KT88 Western Electric Replica DIY
1Quad Shuguang WEKT88 Vacuum Tube Replace 6550 KT88 Western Electric Replica DIY

$498.00

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(Sweet version) Factory Platinum Match 1 Quad Genalex KT-88 tubes 6550 KT88
(Sweet version) Factory Platinum Match 1 Quad Genalex KT-88 tubes 6550 KT88

$412.30

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Matched Quad of NOS - Audio Research KT88 Tubes -- KT7
Matched Quad of NOS - Audio Research KT88 Tubes -- KT7

$219.95

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Tungsol 6550 KT88 Hole Plate Triple O getter Tested NOS Matched Quad
Tungsol 6550 KT88 Hole Plate Triple O getter Tested NOS Matched Quad

$998.00

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KT88 6550 / Matched Quad / LINLAI / Perfect HIFI Audio / Vacuum Tube Amp Classic
KT88 6550 / Matched Quad / LINLAI / Perfect HIFI Audio / Vacuum Tube Amp Classic

$172.66

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Matched Quad ShuGuang KT88-98 Vacuum Valve Tube 6550 Amplifier HIFI New Version
Matched Quad ShuGuang KT88-98 Vacuum Valve Tube 6550 Amplifier HIFI New Version

$163.89

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GEC KT88/6550 OOO getter Near NOS Matched Quad
GEC KT88/6550 OOO getter Near NOS Matched Quad

$1799.30

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Genalex Gold Lion KT88 6550 Black Plates OOO Getter Tested Excellent new in box
Genalex Gold Lion KT88 6550 Black Plates OOO Getter Tested Excellent new in box

$2750.00

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(4) Apex or TAD Matched JJ Electronic KT88 Power Tubes for Audio Research
(4) Apex or TAD Matched JJ Electronic KT88 Power Tubes for Audio Research

$289.00

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Brand New Current Matched Quad (4) Electro-Harmonix KT90 Vacuum Tubes
Brand New Current Matched Quad (4) Electro-Harmonix KT90 Vacuum Tubes

$364.33

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Sylvania 6550 6550A KT88 NOS Tested Excellent Matched Quad
Sylvania 6550 6550A KT88 NOS Tested Excellent Matched Quad

$749.30

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Matched Quad of NOS - Audio Research KT88 Tubes -- KT5
Matched Quad of NOS - Audio Research KT88 Tubes -- KT5

$219.95

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New 2x Electro Harmonix KT88 | Matched Pair / Duet / Two Tubes | Free Ship
New 2x Electro Harmonix KT88 | Matched Pair / Duet / Two Tubes | Free Ship

$134.99

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Genalex GEC KT88 6550 Clear Glass Cup Getter Black Plate NOS Matched Quad
Genalex GEC KT88 6550 Clear Glass Cup Getter Black Plate NOS Matched Quad

$4680.00

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Vacuum Tube, KT88, Genalex Gold Lion, Matched Quad, Power
Vacuum Tube, KT88, Genalex Gold Lion, Matched Quad, Power

$370.00

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1 Matched quad PSVANE UK-KT88/6550/KT120 Audio Valve Vacuum Tube 4pcs UK KT88
1 Matched quad PSVANE UK-KT88/6550/KT120 Audio Valve Vacuum Tube 4pcs UK KT88

$232.99

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MATCHED QUAD SHUGUANG KT88 x 4 Gray Plate Power Tubes PLATINUM MATCHED on AT1000
MATCHED QUAD SHUGUANG KT88 x 4 Gray Plate Power Tubes PLATINUM MATCHED on AT1000

$258.22

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(4) Apex or TAD Matched JJ Electronic 6550 Power Tubes for Audio Research
(4) Apex or TAD Matched JJ Electronic 6550 Power Tubes for Audio Research

$299.00

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