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Tube 6550


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

$173.06


GE 6550A Tube Pair - Test over 100% - New Old Stock in GE boxes

$135.50


2 usa 6550 vintage used audio tubes Tung-Sol RCA Hickok 539 test matched

$85.00


2 Tung-Sol 6550 Tubes (USA) 1962-1963

$157.50


2 New Matched Svetlana 6550 C Audio Tubes Russia

$65.00


Set of four 6550C matched Svetlana Vacuum Tubes. Tested, used less than 50Hrs

$46.00


General Electric GE 6550 Vacuum Tubes Pair - Tested & Working - See Details!

$75.00


Trio Tung-Sol 6550 Beam Power Vacuum Tubes - New in Box - AT1000 Tested

$68.88


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

$159.95


Pair Sylvania 6550 tubes 106% 95% Nos/very Strong 00 Getters

$149.99


2 SYLVANIA, TUNG-SOL 6550 AUDIO VACUUM TUBES, GRAY PLATE, 2 SIDE GETTERS, TESTED

$130.95


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

$64.95


SVETLANA 6550 C 9851 TUBE STRONG

$33.00


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

$64.99


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

$118.10


RCA Electric 6550 Vacuum Tube Single - USA Made - Tested & Working 22/44

$39.95


Vintage 6550 Vacuum Tubes Pair w/ Metal Bases & Perfect Matching Values 52/52

$39.95


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

$72.95


2 Groove Tubes, GT-6550-RD--H HIGH DUET matched, New. Open box

$49.99


Matching Pair ORANGE 6550C Power Amplifier Tubes TV-7 Tested

$20.00


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

$169.99


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

$124.95


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

$119.95


RCA Electric 6550 Vacuum Tubes Pair - USA Made - Tested & Working, 42/44 & 50/44

$99.95


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

$89.99


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

$112.95


Matched Date Pair Tung Sol 6550 KT88 Solid Gray Plates Vacuum Tubes 1961 Strong

$249.96


RCA tube 6550-VI Matched pair NOS Offered for the last time

$199.00


Unbranded 6550 Vacuum Tube Single - Tested & Working 60/44, GE Tung-Sol Sylvania

$49.95


General Electric GE 6550 Metalbase Vacuum Tube PAIR - USA Made, Tested

$99.95


KT88(6550)Cryogenic Valve Art tubes matched pair 2 pcs. quads available.

$89.90


SOVTEK Factory Platinum Matched PAIR TWO 6550WE 6550 tubes 24 Hr Burn-in

$57.95


Strong USA made Welded Plate 6550 Tube

$59.99


3 lot Vintage Tung Sol + RCA + Leslie 6550 KT88 Vacuum Tube - All Tested Great

$265.00