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6550 Quad Tubes


Electro Harmonix Factory Plat Matched 6550 6550EH Vacuum Tubes QUAD 24hr Burn-in

$136.95


6550 R MATCHED QUAD NEW (4 tubes) GROOVE TUBES FENDER MADE RUSSIA BIN $65 KT88

$65.00


NOS JJ Electronic OEM KT88 Tubes Valves, TESTED Matched Quad KT-88 6550 KT 88

$129.99


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

$192.16


4 new in the box matched sylvania welded plate 6550 tubes 3 quads available

$299.99


Matched Quads (4 tubes) Tung Sol 6550 Reissue amp tubes, BRAND NEW

$126.75


Matched Quads Svetlana 6550 6550C amp tubes, BRAND NEW

$125.49


NEW NESSTONE 6550 ST **QUAD** Tung Sol Style Power Tubes-Matched-Powerful Tone!

$93.99


Quad of Tung-Sol 6550 KT88 NOS NIB Solid Gray Plate 1960s Vacuum Tubes

$1,200.00


Factory Matched Quad Tube Amp Doctor TAD 6550 6550A KT88 - GE 6550A Remake

$180.00


Set of Four Quad Vintage Tung Sol 6550 Tubes Tested on Computerized Curve Tracer

$699.99


Electro-Harmonix 6550 EH Matched Quad Set (4) Vacuum Tubes Brand NEW In Box

$117.00


Matched Quad 6550 ShuGuang KT88 HiFi Vacuum Tube Amplifier New Tested Old Stock

$75.05


JJ/Tesla 6550 Power Tubes, Matched Quad

$179.95


TAD Matched Quad Winged C SED 6550 C Tubes-24 Hour Burn In -Premium Selected NOS

$460.00


Tung-Sol Reissue 6550 Matched Quad Set (4) Coke Bottle Vacuum Tubes Brand NEW

$140.50


(4x) QUAD - SVETLANA 6550 / 6550C (KT88) VACUUM TUBES - CURRENT MATCHED!

$123.00


EL34 KT88 6L6 6V6 6550 Quad Vacuum Tube Amplifier Bias Match Tester Suzier T3

$37.52


Quad of Tung-Sol 6550 New Production Power Vacuum Tube

$139.92


GT-6550-R Groove Tubes Matched Quad (4) Tubes HIGH Fender/Sovtek EL34

$140.00


Matched Quads (4 tubes) Electro Harmonix 6550 6550EH large tubes, NEW

$113.63


New Current Matched Quad (4) JJ Electronic 6550 Vacuum Tubes

$178.76


Quad of Sovtek 6550WE Power Vacuum Tube

$111.92


Factory Matched QUAD Tung-Sol Tungsol 6550 KT88 - For Tube Amplifiers

$155.00


NEW! Power Current Matched Quad (4) JJ Electronic 6550 Vacuum Tubes

$172.00


Distributor Matched Quad JJ Tesla 6550 - For Audio Research + Tube Amplifiers

$149.95


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

$152.41


NEW Lot4 Tube Amp Doctor TAD KT66 Hi-Fi Guitar Amplifier Power Tube Matched Quad

$149.99


4 Sovtek 6550WE 6550 Factory Matched Amp Tube Quad - Brand New in Box -Free Ship

$109.99


Factory Matched QUAD Svetlana KT88SV 6550 KT88 - For Tube Amplifiers

$160.00