On Sale At buffaloceliacs.org!

6550 Quad


4 Tung-Sol 6550 KT88 Reissue Matched Tube Quad - Brand New in Box - Free Ship

$124.99


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

$192.16


4 Vintage '01 Original NOS Svetlana Winged C SV6550C 6550 KT88 Matched Tube Quad

$112.50


TUNG SOL 6550 USA JAN TUBES NEW OLD STOCK QUAD SET. . .

$595.00


4 Mullard KT88 6550 Reissue Matched Tube Quad - Brand New in Box - Free Ship

$139.99


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

$65.00


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

$126.09


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

$129.99


4 Brand New Tung-Sol KT120 / (KT88 6550) Factory Matched Amplifier Tube Quad New

$139.99


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

$119.95


6550-EH Vac.Tubes NEW 100%, LOT OF 2, by ELECTRO-HARMONIX, FACTORY MATCHED QUAD 

$50.00


KT88 X 4 TESLA JJ BLUE GLASS Matched Quad NEW/NOS 6550 EL34 300B 274A 274B

$200.00


SVETLANA 6550 B-2 PERFECT MATCH QUAD NOS KT88 HICKOK TESTED VT-1000 MATCHED

$119.95


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

$79.92


SOVTEK Factory Platinum Matched QUAD FOUR 6550WE 6550 tubes 24 Hr Burn-in

$112.95


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

$1,200.00


QUAD of General Electric GE 6550A tubes ~ test NOS...OUTSTANDING!

$610.00


Matched Quad (4) original Svetlana SED 6550C, AT1000 Tested, mid-1990s

$294.00


Quad of Tung-Sol 6550 New Production Power Vacuum Tube

$139.92


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

$123.00


New Plate Current Matched Quad (4) Tung-Sol Reissue 6550 KT88 Coke Bottle Tubes

$140.98


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

$117.00


Matched Quads Svetlana 6550 6550C amp tubes, BRAND NEW

$118.88


JJ/Tesla 6550 Power Tubes, Matched Quad

$179.95


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

$140.50


New Premium Select NessTone 6550 Power Tube Matched Quad - Big, Clean Warm Bass

$119.99


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

$180.00


Quad of Telefunken Black Diamond 6550

$332.00


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

$70.00


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

$142.06


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

$107.65


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

$172.00


Valve Art Power Vacuum Tube, 6550A, Matched Quad

$115.85


New Current Matched Quad (4) Psvane KT88 (6550) HiFi Series Vacuum Tubes Hi-Fi

$124.95


Ruby Tubes 6550ASTR Quartet Matched

$163.44


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

$131.76


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

$152.41


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

$460.00


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

$178.76


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

$109.99


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

$129.07