kt66 quad

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Matched Quad Tube Amp Doctor TAD KT66-STR Genalex Tube Remake 6L6 QUAD II MC-240
$199.00

Matched Quad Tube Amp Doctor TAD KT66-STR Genalex Tube Remake 6L6 QUAD II MC-240

Factory Platinum Matched Quad Genalex Gold Lion KT66 tubes, BRAND NEW in Box !
$251.71

Factory Platinum Matched Quad Genalex Gold Lion KT66 tubes, BRAND NEW in Box !

Matched Quad (4pcs) G.E.C CV1075 KT66 Military Grade Valve Vacuum Tube
$1,395.00

Matched Quad (4pcs) G.E.C CV1075 KT66 Military Grade Valve Vacuum Tube

Factory Match QUAD Genalex GOLD LION KT-66 KT66 Vacuum tubes
$240.87

Factory Match QUAD Genalex GOLD LION KT-66 KT66 Vacuum tubes

Brand New Tung-Sol Reissue 7581A KT66 Current Matched Quad (4) Vacuum Tubes
$204.70

Brand New Tung-Sol Reissue 7581A KT66 Current Matched Quad (4) Vacuum Tubes

Quad of JJ KT66 Power Vacuum Tube
$223.80

Quad of JJ KT66 Power Vacuum Tube

KT66 GOLD MARSHALL TAD matched Quad Power Tubes OO Getters Fat Bottle Brown Base
$315.00

KT66 GOLD MARSHALL TAD matched Quad Power Tubes OO Getters Fat Bottle Brown Base

Matched pair Tube Amp Doctor TAD KT66-STR Genalex Tube Remake 6L6 QUAD II MC-240
$99.00

Matched pair Tube Amp Doctor TAD KT66-STR Genalex Tube Remake 6L6 QUAD II MC-240

Vacuum Tube, KT66, Tube Amp Doctor, Premium Selected, Matched Quad, Power
$187.80

Vacuum Tube, KT66, Tube Amp Doctor, Premium Selected, Matched Quad, Power

Vacuum Tube, KT66, JJ Electronics, Apex Matched Quad, Power
$228.60

Vacuum Tube, KT66, JJ Electronics, Apex Matched Quad, Power

Matched Quad PSVANE KT88-Z KT88 Vacuum Tube Replace KT120 6550 KT90 KT66 KT100
$289.80

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

Vacuum Tube, KT66, Genalex Gold Lion, Matched Quad, Power
$275.80

Vacuum Tube, KT66, Genalex Gold Lion, Matched Quad, Power

JJ Tesla KT66 Tubes Apex or TAD Matched Quad for Quad II MC30 MC240 tube amps
$299.00

JJ Tesla KT66 Tubes Apex or TAD Matched Quad for Quad II MC30 MC240 tube amps

Matched Pair Tube Amp Doctor TAD KT66 Genalex Tube Remake 6L6 QUAD II MC-240
$95.00

Matched Pair Tube Amp Doctor TAD KT66 Genalex Tube Remake 6L6 QUAD II MC-240

MATCHED NOS QUAD PENTA LABS KT88 Amplifier Audio VACUUM TUBES Tested U.8142
$299.95

MATCHED NOS QUAD PENTA LABS KT88 Amplifier Audio VACUUM TUBES Tested U.8142

Matched 4pcs PSVANE ACME KT88 AKT88 Vacuum Tube Upgrade 6500 KT120 EL34 KT66
$409.40

Matched 4pcs PSVANE ACME KT88 AKT88 Vacuum Tube Upgrade 6500 KT120 EL34 KT66

NOS Match QUAD ITT 5B/255M TUBE replace KT66 6L6GC
$181.09

NOS Match QUAD ITT 5B/255M TUBE replace KT66 6L6GC

Genalex Gold Lion KT66 Power Tubes - Matched Quartet
$403.19

Genalex Gold Lion KT66 Power Tubes - Matched Quartet

Quad of Genalex - Gold Lion KT66 Power Vacuum Tube
$271.80

Quad of Genalex - Gold Lion KT66 Power Vacuum Tube

(Sweet Edition Ⅱ ) Factory Match QUAD Genalex GOLD LION KT-66 KT66 Vacuum tubes
$371.07

(Sweet Edition Ⅱ ) Factory Match QUAD Genalex GOLD LION KT-66 KT66 Vacuum tubes

Sylvania 5932/6L6/KT66 Brown Base NOS NIB Matched Quad
$420.00

Sylvania 5932/6L6/KT66 Brown Base NOS NIB Matched Quad

Tungsram 6L6GA 6L6 KT66 Welded Plate Double Pan Getter NOS Matched Quad
$380.00

Tungsram 6L6GA 6L6 KT66 Welded Plate Double Pan Getter NOS Matched Quad

Brimar 6L6G CV1947 KT66 6L6 Smoked Glass Tray Getter Windmill Mica Matched Quad
$870.99

Brimar 6L6G CV1947 KT66 6L6 Smoked Glass Tray Getter Windmill Mica Matched Quad

RFT 6L6 KT66 Slightly Used Welded Plates Top Foil Getter NOS Tested Matched Quad
$680.00

RFT 6L6 KT66 Slightly Used Welded Plates Top Foil Getter NOS Tested Matched Quad

Matched Quad Psvane KT88-PT Vacuum Tube Electron Valve Replace 6440 KT100 KT66
$218.96

Matched Quad Psvane KT88-PT Vacuum Tube Electron Valve Replace 6440 KT100 KT66

New Matched Quad HIGH END Shuguang KT88-T Audio Valve Vacuum Tube for Valve Amp
$352.99

New Matched Quad HIGH END Shuguang KT88-T Audio Valve Vacuum Tube for Valve Amp

4x Super6 Peavey 6l6GC PowerTubes ~ STR-387 Quad ~ 6505/5150 AmpHead ~ 7581 5881
$879.00

4x Super6 Peavey 6l6GC PowerTubes ~ STR-387 Quad ~ 6505/5150 AmpHead ~ 7581 5881

Vacuum Tube, 6L6, Electro-Harmonix, Apex Matched Quad, Power
$161.60

Vacuum Tube, 6L6, Electro-Harmonix, Apex Matched Quad, Power

6P41S Matched QUAD, Soviet Vacuum Valves, NOS with CERAMIC PRO 41 CONVERTERS
$99.99

6P41S Matched QUAD, Soviet Vacuum Valves, NOS with CERAMIC PRO 41 CONVERTERS

GEC Marconi KT66 6L6 Clear Glass Brown Base Grey Plate OO Getter Matched Quad
$1,368.00

GEC Marconi KT66 6L6 Clear Glass Brown Base Grey Plate OO Getter Matched Quad

GEC KT66 6L6 Clear Glass Brown Base Grey Plate OO Getter Matched Quad
$1,268.00

GEC KT66 6L6 Clear Glass Brown Base Grey Plate OO Getter Matched Quad

GEC KT66 6L6 Clear Glass Brown Base Grey Plate OO Getter NOS Matched Quad
$1,368.00

GEC KT66 6L6 Clear Glass Brown Base Grey Plate OO Getter NOS Matched Quad

GEC KT66 6L6 Clear Glass Brown Base OO Getter Tested NOS Matched Quad
$1,480.00

GEC KT66 6L6 Clear Glass Brown Base OO Getter Tested NOS Matched Quad

RFT 6L6 KT66 Slightly Used Welded Plates Top Foil Getter NOS Tested Matched Quad
$680.00

RFT 6L6 KT66 Slightly Used Welded Plates Top Foil Getter NOS Tested Matched Quad

Four Assorted 6BQ5 Tubes, Brands Like Sherwood, GE, etc., Exact Same Ratings
$140.00

Four Assorted 6BQ5 Tubes, Brands Like Sherwood, GE, etc., Exact Same Ratings

(Elegant Edition) NOS Match 1 QUAD STC 12E1 CV345 TUBES
$185.07

(Elegant Edition) NOS Match 1 QUAD STC 12E1 CV345 TUBES

Vacuum Tube, 6L6WXT+, Sovtek, Apex Matched Quad, Power
$180.20

Vacuum Tube, 6L6WXT+, Sovtek, Apex Matched Quad, Power

GEC/ Osram KT66 6L6 Smoked Glass Black Base Black Plate Cup Getter Matched Quad
$1,780.00

GEC/ Osram KT66 6L6 Smoked Glass Black Base Black Plate Cup Getter Matched Quad

GEC/ Osram KT66 6L6 Smoked Glass Brown Base Black Plate Cup Getter Matched Quad
$1,880.00

GEC/ Osram KT66 6L6 Smoked Glass Brown Base Black Plate Cup Getter Matched Quad

GEC Marconi KT66 6L6 Clear Glass Brown Base Grey Plate Cup Getter Matched Quad
$1,368.00

GEC Marconi KT66 6L6 Clear Glass Brown Base Grey Plate Cup Getter Matched Quad

Tungsram 6L6 6L6G KT66 Windmill Mica Smoked Glass Foil Getter Matched Quad
$880.00

Tungsram 6L6 6L6G KT66 Windmill Mica Smoked Glass Foil Getter Matched Quad

GEC/ Osram KT66 6L6 Smoked Glass Black Base Black Plate Cup Getter Matched Quad
$1,580.00

GEC/ Osram KT66 6L6 Smoked Glass Black Base Black Plate Cup Getter Matched Quad

GEC Marconi KT66 6L6 Clear Glass Brown Base Grey Plate Cup Getter Matched Quad
$1,468.00

GEC Marconi KT66 6L6 Clear Glass Brown Base Grey Plate Cup Getter Matched Quad

GEC VT-75 VT75 CV1947 KT66 6L6 6L6G Cup Getter Excellent Testing Values Matched
$3,500.00

GEC VT-75 VT75 CV1947 KT66 6L6 6L6G Cup Getter Excellent Testing Values Matched

6L6 MARCONI ITALY 6L6G TUBE STEREO 350B QUAD VINTAGE AMPLIFIER KT66 5881 6550 DD
$2,550.00

6L6 MARCONI ITALY 6L6G TUBE STEREO 350B QUAD VINTAGE AMPLIFIER KT66 5881 6550 DD

GEC/ Osram KT66 6L6 Smoked Glass Brown Base Black Plate Cup Getter Matched Quad
$1,680.00

GEC/ Osram KT66 6L6 Smoked Glass Brown Base Black Plate Cup Getter Matched Quad

6L6G tube Marconi GC WGB quad amplifier 6p3s tubes el34 metal kt66 kt88 6550
$1,850.00

6L6G tube Marconi GC WGB quad amplifier 6p3s tubes el34 metal kt66 kt88 6550

6L6 TUBE FIVRE ITALY 6L6G QUAD power tubes VINTAGE AMPLIFIER KT66 5881 350B 6550
$1,750.00

6L6 TUBE FIVRE ITALY 6L6G QUAD power tubes VINTAGE AMPLIFIER KT66 5881 350B 6550

KT66 LVE VINTAGE RETRO STYLE SELECTED MATCHED QUAD VALVE TUBE
$185.93

KT66 LVE VINTAGE RETRO STYLE SELECTED MATCHED QUAD VALVE TUBE

KT66 GOLD TAD ORIGINAL MARSHALL SPARES MATCHED QUAD VALVE/TUBE
$185.93

KT66 GOLD TAD ORIGINAL MARSHALL SPARES MATCHED QUAD VALVE/TUBE

Matched Quad 4x Vintage 1960s GEC KT66 Marconi Brown Base Valves Tubes *Tested*
$489.60

Matched Quad 4x Vintage 1960s GEC KT66 Marconi Brown Base Valves Tubes *Tested*

KT66 QUAD VINTAGE TOP QUALITY CRYO TREATED TUBES FOR SUPERIOR PERFORMANCE, RARE
$680.49

KT66 QUAD VINTAGE TOP QUALITY CRYO TREATED TUBES FOR SUPERIOR PERFORMANCE, RARE

Marconi-OSRAM GEC M-O Company UK KT66/CV1075 Matched Quad.Original Box
$1,864.12

Marconi-OSRAM GEC M-O Company UK KT66/CV1075 Matched Quad.Original Box

KT66 Valves - JJ Matched Quad NEW TESTED (4 X KT66)
$345.20

KT66 Valves - JJ Matched Quad NEW TESTED (4 X KT66)

(Sweet Edition ii) Factory Match QUAD Genalex GOLD LION KT-66 KT66 Vacuum Tubes
$392.77

(Sweet Edition ii) Factory Match QUAD Genalex GOLD LION KT-66 KT66 Vacuum Tubes

New ListingMarshall KT66 VLVE-00077 Gold Label MATCHED QUAD TUBES
$191.15

New ListingMarshall KT66 VLVE-00077 Gold Label MATCHED QUAD TUBES

JJ Electronic KT66 Amplifier Power Tube / Valve [Matched Pairs Quads Available]
$59.48

JJ Electronic KT66 Amplifier Power Tube / Valve [Matched Pairs Quads Available]

6V6 tube IVF TUBE 6V6GT QUAD LEAK TL-10 VT-107 EL33 KT66 6L6G EL37 6550 KT88
$259.05

6V6 tube IVF TUBE 6V6GT QUAD LEAK TL-10 VT-107 EL33 KT66 6L6G EL37 6550 KT88

6V6 tubes MARCONI TUBE 6V6GT QUAD DD GETTER LEAK TL-10 VT-107 EL33 KT66 6L6G
$259.05

6V6 tubes MARCONI TUBE 6V6GT QUAD DD GETTER LEAK TL-10 VT-107 EL33 KT66 6L6G

6V6 Tube IVF TUBE 6V6GT QUAD LEAK TL-10VT-107 EL33 KT66 6L6G EL37 BADBOY OLD
$259.05

6V6 Tube IVF TUBE 6V6GT QUAD LEAK TL-10VT-107 EL33 KT66 6L6G EL37 BADBOY OLD

6V6GT FIVRE TUBE 6V6 GT QUAD tube leak tl-10 vt-107 EL33 KT66 6L6G EL37 6V6 X2
$305.68

6V6GT FIVRE TUBE 6V6 GT QUAD tube leak tl-10 vt-107 EL33 KT66 6L6G EL37 6V6 X2

1 MATCHED QUAD GEC/GENALEX / KT88 / OOO Getter / TV-7 TEST RESULTS: 70/70/68/67
$1,750.00

1 MATCHED QUAD GEC/GENALEX / KT88 / OOO Getter / TV-7 TEST RESULTS: 70/70/68/67

1 MATCHED QUAD GEC KT88 OOO Getter TV-7 TEST RESULTS: 65/64/59/59
$1,450.00

1 MATCHED QUAD GEC KT88 OOO Getter TV-7 TEST RESULTS: 65/64/59/59

Factory Platinum Matched Pair Genalex Gold Lion KT66 tubes, BRAND NEW in Box !
$119.54

Factory Platinum Matched Pair Genalex Gold Lion KT66 tubes, BRAND NEW in Box !

1 MATCHED QUAD GEC MADE GENALEX LABELED KT88 OOO Getter TEST: 66/65/65/65
$1,650.00

1 MATCHED QUAD GEC MADE GENALEX LABELED KT88 OOO Getter TEST: 66/65/65/65

Genalex Gold Lion KT-66 Power Tubes Matched Pair
$109.99

Genalex Gold Lion KT-66 Power Tubes Matched Pair

Factory Platinum Matched Quad Genalex Gold Lion KT88 tubes, BRAND NEW in Box !
$329.95

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

Vintage Pair Genalex KT66 Tubes Untested Sold As Is.
$199.99

Vintage Pair Genalex KT66 Tubes Untested Sold As Is.

1 pcs NOS NIB KT66 CV1075 MO Valve Co (GEC) 1950's
$111.50

1 pcs NOS NIB KT66 CV1075 MO Valve Co (GEC) 1950's

Genalex KT66 Smoke Glass Vacuum Tube Amplitrex Tested Strong
$150.00

Genalex KT66 Smoke Glass Vacuum Tube Amplitrex Tested Strong

Strong UNKNOWN Brown Base KT66 Tube - Tube Worked Great
$0.01

Strong UNKNOWN Brown Base KT66 Tube - Tube Worked Great

Genelex KT-66 Audio Tube, Made in England, Srong on Amplitrex
$140.00

Genelex KT-66 Audio Tube, Made in England, Srong on Amplitrex

Matched Quad of KT-120 Tubes - Factory Matched & Current Source Verified - Premi
$240.00

Matched Quad of KT-120 Tubes - Factory Matched & Current Source Verified - Premi

GEC KT66 - pair used , tested great
$270.00

GEC KT66 - pair used , tested great

Strong Genelex KT66 Vacuum Tube 1956 Date
$139.99

Strong Genelex KT66 Vacuum Tube 1956 Date

Matched Quad LINLAI KT88-D Perfect Titanium Screen D-Series Vacuum Tube Amp 6550
$337.99

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

Pair Vintage Genalex Gold Lion KT66 KT-66 Tubes England Hickok TV7 Tested STRONG
$425.00

Pair Vintage Genalex Gold Lion KT66 KT-66 Tubes England Hickok TV7 Tested STRONG

Platinum Factory Match 1 Quad Genalex GOLD LION KT88 Vacuum tubes 6550
$304.50

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

Factory Platinum Matched Quad Genalex Gold Lion KT88 tubes, BRAND NEW in Box !
$320.00

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

KT66 Tubes Matched Pair
$93.27

KT66 Tubes Matched Pair

TAD Premium Selected Factory Matched Quad Red Base KT88-STR Tubes
$289.00

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

NOS Platinum Match Pair KT66 ValveArt Welded Plates Dual Ring Getters Brown Base
$315.00

NOS Platinum Match Pair KT66 ValveArt Welded Plates Dual Ring Getters Brown Base

Factory Platinum Matched QUAD Tung-Sol Tungsol KT120 - 4 Factory Matched
$430.00

Factory Platinum Matched QUAD Tung-Sol Tungsol KT120 - 4 Factory Matched

Brand New Factory Matched Quad (4) Tung-Sol Reissue KT120 / KT-120 Vacuum Tubes
$370.28

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

Pair of JJ KT66 Power Vacuum Tube
$111.90

Pair of JJ KT66 Power Vacuum Tube

Matched Quad NOS branded “McIntosh” KT88 Tubes, Brand NEW !
$369.95

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

Brand New Tung-Sol KT150 KT-150 Factory Matched Burned In Quad (4) Vacuum Tubes
$574.34

Brand New Tung-Sol KT150 KT-150 Factory Matched Burned In Quad (4) Vacuum Tubes

Matched 1pair PSVANE ART 6CA7 Vacuum Tube Upgrade EL34 EL34C EL34B 6P3P KT66 6V6
$129.00

Matched 1pair PSVANE ART 6CA7 Vacuum Tube Upgrade EL34 EL34C EL34B 6P3P KT66 6V6

MATCH PAIR 6L6G / KT66 350B kENRAD BLACK GLASS TUBES LARGE FOIL GETTERS USA NICE
$225.00

MATCH PAIR 6L6G / KT66 350B kENRAD BLACK GLASS TUBES LARGE FOIL GETTERS USA NICE

NOS NIB Genalex KT66 Vacuum Tube Tests Excellent @ 93% & 36ma Made In England
$199.00

NOS NIB Genalex KT66 Vacuum Tube Tests Excellent @ 93% & 36ma Made In England

Great QUAD (4) MCINTOSH (Svetlana) KT88 Amplifier VACUUM TUBES Tested A.8272
$299.95

Great QUAD (4) MCINTOSH (Svetlana) KT88 Amplifier VACUUM TUBES Tested A.8272

TAD KT66 PREMIUM - MATCHED PAIR
$99.95

TAD KT66 PREMIUM - MATCHED PAIR

Platinum Factory Match quad Genalex Gold Lion KT-77 KT77 EL34 tubes
$259.47

Platinum Factory Match quad Genalex Gold Lion KT-77 KT77 EL34 tubes

Matched Quad of NOS - Audio Research KT88 Tubes -- KT1
$219.95

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

Genalex KT66 Gray Glass Vacuum Tube Amplitrex Tested 96% Gm
$225.00

Genalex KT66 Gray Glass Vacuum Tube Amplitrex Tested 96% Gm

Brand New Matched Quad (4) Genalex Gold Lion Reissue KT88 / 6550 Vacuum Tubes
$403.24

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

Matched Quad KT120
$300.00

Matched Quad KT120

Groove Tubes GT Gold GT-KT66-HP Matched Power Tubes 6 Rating New In Open Box
$80.00

Groove Tubes GT Gold GT-KT66-HP Matched Power Tubes 6 Rating New In Open Box

Marconi KT66 Vintage Brown Base Strong in GEC Box
$130.00

Marconi KT66 Vintage Brown Base Strong in GEC Box

2 RCA 7581A KT66 Power Tubes - Tested - High Quality
$184.99

2 RCA 7581A KT66 Power Tubes - Tested - High Quality

Matched Quad PSVANE Hifi KT88/C Vacuum Tube Replace 6550 KT88 For Audio DIY
$173.88

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

Matched Quad Tung Sol 6550 Tubes / KT1
$495.00

Matched Quad Tung Sol 6550 Tubes / KT1

NOS Platinum Matched PAIR 6L6GC Dual Disc GETTER Grail TUBES 6L6 KT66 8417
$315.00

NOS Platinum Matched PAIR 6L6GC Dual Disc GETTER Grail TUBES 6L6 KT66 8417

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