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Tungsol 6550


6550 New Reissue Tung-Sol Tubes like new - 12 matched

$180.00


2 strong lightly used test nos 1973 tungsol 3 hole 6550 tubes # 1905

$219.99


Matched Date Pair Tung Sol 6550 KT88 Gray Plate RCA Branded Vacuum Tube #1

$299.95


2 TUNGSOL (GE BRAND) 6550 AMPLIFIER TUBES METAL BASE AMPLITREX tested Strong

$150.00


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

$74.99


2 strong tungsol 3 hole 6550 tubes # 1907

$149.99


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

$151.29


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

$39.99


2 new in the box tungsol 3 hole 6550 tubes # 1906

$259.99


6 rare test nos tungsol black plate 6550 tubes

$699.99


2 new in the box 1960s tungsol solid gray plate 6550 tubes # 1902

$399.99


Strong TungSol 6550 Solid Gray Plate Branded For Harmon Kardon 1961 Date

$109.99


4 rare test nos tungsol black plate 6550 tubes

$699.99


1 pc Single Pre 1962 solid black plate usa made tungsol 6550 tubes tung-sol 6550

$269.00


2 NOS NIB Tung-Sol 6550 Tubes Three Hole Plates GM Matched Pair Tested Strong

$302.95


6550 Tung-Sol /Leslie matched pr. [email protected] real amp voltage tests NOS

$259.90


6550 TUNG-SOL VACUUM TUBES 3 HOLE COKE BOTTLE 1971 MATCHED PAIR JKPMN

$300.00


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

$122.54


2 6550 TUNG-SOL Solid Black Plate HiFi Amp Vacuum Tubes Matching Codes 601-3 NOS

$800.00


2 strong tungsol solid black plate 6550 tubes # 1210 matched within 3ma

$399.99


TUNG-SOL 6550 TUBES MATCHED PAIR BLACK PLATE SYLVANIA LABELED NOS NIB

$649.99


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

$1,200.00


2 new same date tungsol solid gray plate 6550 tubes # 1201 matched within 2ma

$399.99


Perfect Nos Tung-sol 6550 tube 3 Getter 3 Mica Welded Plate's Vintage Strong New

$183.75


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

$433.99


Vintage Tung-sol Black Plate 6550 / KT88 Tube Work's Perfect! Triple DDD Getter

$258.75


2 test nos tungsol solid gray plate 6550 tubes # 1211 matched within 2ma

$349.99


Quad of Tung-Sol 6550 New Production Power Vacuum Tube

$139.92


2 6550 RCA by TUNG-SOL HiFi Radio Amplifier Vacuum Tubes Matching Codes 6526 NOS

$400.00


Tung-Sol 6550 Tube Labeled Leslie 3 Halo Triplett Tested At Bogie value

$149.00


Matched Sextet (6 tubes) Tung Sol 6550 Reissue amp tubes, BRAND NEW

$182.88


Matched Octet (8 tubes) Tung Sol 6550 Reissue amp tubes, BRAND NEW,

$256.02


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

$145.00


2 test nos tungsol solid black plate 6550 tubes # 1208 matched within 1ma

$399.99


Tung-Sol 6550 ST NOS-U.S. Made

$349.95


New Plate Current Matched Sextet (6) Tung-Sol Reissue 6550 KT88 Vacuum Tubes

$212.88


2 new in the box 1963 tungsol solid gray plate 6550 tubes # 1901

$399.99


1 excellent very nice tungsol 3 hole gray plate 6550 tube #129

$79.99


2 mint new tungsol solid gray plate 6550 tubes # 1962 matched with 2ma at 400v

$399.99


2 mint new tungsol 3hole gray plate 6550 tubes # 1949 matched with 2ma at 400v

$349.99


GE Tung Sol 6550 KT88 Vacuum Tube Bogey +

$113.99


Factory Matched Octet Tung-Sol Tungsol 6550 KT88 - Audio Research Tube Amplifier

$320.00