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6550 Tube


4 GE 6550A Tubes (USA )

$140.00


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

$176.14


KT88 6550 Quicksilver Audio Receiver Vacuum Tubes Tested Quad STRONG

$82.00


4 RCA 6550 Leslie Output Tubes Tested USED

$175.00


Pr Vintage Tungsol 6550 Power Tubes,USA,Black Plates,D getters,Strong,Ex Sound

$188.00


AUDIO RESEARCH 6550 / KT88 BEAM POWER TUBES - - ONE PAIR

$35.00


Mullard Platinum Factory Matched PAIR New NIB KT88 KT-88 6550 Tubes

$72.95


Sylvania 6550 -- Beam Power Tube - Amplitrex Tested

$27.99


NOS QUAD Tung Sol Style 6550 Tube Shuguang Beijing Made 80's vintage KT88

$79.99


Quad SED Svetlana Winged C 6550C KT88 Tubes Dimpled St. Petersburg Test Great

$124.00


JJ Electronics KT88 / 6550 Vacuum Tubes - Matched Quad Set - Original Boxes

$179.00


2 Pair Sovtek 6550WE Power Tubes - Tested Maximatcher - Leslie Marshall

$50.00


6550/KT88 GE TUBES QUAD SET MADE IN USA. . UNUSED NEW OLD STOCK. . .

$550.00


Strong USA made Welded Plate 6550 Tube

$55.99


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

$119.95


New JJ Electronic OEM KT88 Tubes Valves, Matched Pair KT-88 6550 KT 88

$52.99


6550 Tubes Tung-Sol reissue platinum matched quad(4) pcs.

$125.90


New Plate Current Matched Pair (2) Tung-Sol Reissue 6550 KT88 Coke Bottle Tubes

$69.46


Pair Tubes RCA 6550 2 Pcs Audio Röhre Valve Vacuum New in Box Vintage Power Kt88

$49.00


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

$89.99


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

$45.99


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

$172.95


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

$180.00


KT88 Matched Quad Electro Harmonix + Cryo Treated Vacuum Tubes- 4 6550 KT90

$169.99


Tung-Sol 6550 Original Issue Tubes, Matched Pair - Tested, NOS

$300.00


SOVTEK Factory Platinum Matched SEXTET 6550WE 6550 SIX tubes 24 Hr Burn-in

$159.95


GE 6550A NOS Matched Quartet

$800.00


SED Svetlana Winged C 6550C Tubes - TESTED

$92.00


Quad of Tung-Sol (GE label) 6550 KT88 NOS NIB Solid Gray Plate 1961 Vacuum Tubes

$1,100.00


PERFECT NOS NIB VINTAGE MATCHED PAIR 6550 TUBE'S SYLVANIA KT88 TUNGSOL 1960 USA

$525.00


Matched Pair Tung Sol 6550 KT88 Solid Black Plates Vacuum Tubes Very Strong

$443.99