On Sale At forumgoal.net!

Tungsol 6550


6550 / Kt88 Tung Sol BLACK PLATE Vintage VACUUM TUBE

$34.00


2 strong truly matched rare 1960 tungsol solid black plate 6550 tubes # 9033

$199.99


2 strong truly matched rare 1950s tungsol solid black plate 6550 tubes # 9034

$199.99


2 strong truly matched Tungsol soid black plate 6550 tubes # 9038

$249.99


(4) USED TUNGSOL 6550 TUBES

$399.00


2 new rare tungsol solid black plate 6550 tubes

$399.99


1 excellent new in the box vintage tungsol 6550 tube

$79.99


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

$126.75


2 excellent test nos truly matched vintage tungsol 3 hole plate 6550 tubes # 11

$219.99


2 strong rare tungsol solid black plate 6550 tubes

$349.99


2 excellent test nos truly matched vintage tungsol 3 hole plate 6550 tubes # 14

$219.99


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

$44.99


(1) NOS NIB RCA (Tung Sol) 6550 Tube - triple getter, three hole plate

$125.00


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

$599.99


2 strong original tungsol 3 hole gray plate 6550 tubes

$149.99


3 Vintage Tung-Sol 6550 Vacuum Tubes : Same Date Code (3226142-3 : 1961)/ Strong

$449.99


NOS 1970's TUNG-SOL PHILIPS-ECG 6550A / KT-88 matched QUAD tubes MADE IN U.S.A

$1,349.95


(1) USED TUNGSOL 6550 TUBES

$199.00


Tung Sol 6550 KT88 Solid Black Plates Vacuum Tube Very Strong (3) Available

$199.99


Pair of Tung-Sol 6550 KT88 Black Plate Vacuum Tubes

$500.00


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

$299.99


Matched Pair RCA TUNGSOL 6550 Tubes Unused MIB 1965 Amplitrex Tested Free Ship

$585.00


Three TungSol 6550 Tubes Amplitrex Tested Blalck Plate 3 Mica 3 Getter

$450.00


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

$1,200.00


New Plate Current Matched Octet (8) Tung-Sol Reissue 6550 KT88 Vacuum Tubes

$275.46


2 strong truly matched Tungsol soid black plate 6550 tubes # 903

$249.99


2 truly matched new vintage tungsol 3 hole gray plate 6550 tubes within 0.3ma

$299.99


(2) MATCH USED GE TUNGSOL 6550 TUBES

$249.00


Quad of Tung-Sol 6550 New Production Power Vacuum Tube

$139.92


Vacuum Tube - 6550, Tung-Sol Reissue, Apex Matched Quad, Power Tube

$149.80


2 strong test nos original tungsol 3 hole gray plate 6550 tubes

$189.99


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

$320.00


2 excellent test nos truly matched vintage tungsol 3 hole plate 6550 tubes # 12

$219.99


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

$231.15


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

$300.00