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Tungsol 6550


Vintage Tung Sol 6550 Vacuum Tube Black Plate NOS NIB 1950's Made In USA Rare

$275.00


Vintage Matched Pair Tung Sol 6550 Vacuum Tubes Made USA 1961 Solid Gray Plate

$132.50


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

$79.99


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

$126.99


Pair (2) Vintage Tung Sol/RCA 6550 Vacuum Tubes Manufactured in 1966 USA

$150.00


Vintage Tung Sol/RCA 6550/KT88 Tubes Matched 1965 Date

$149.95


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

$125.90


1 Tung-Sol 6550 Black Plate 3-Mica Vacuum Tube - 1958 Vintage 35 Watts Audio

$169.95


NOS Tung-Sol (Stromberg-Carlson) 6550 Vintage

$135.00


VINTAGE MATCHED NEW NOS VINTAGE PAIR TUNG-SOL 6550 BLACK PLATE 1957 TUBE KT88

$357.50


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

$300.00


Tung Sol 6550 Cryo Matched Quad (4) - KT88

$179.99


matched pair TUNG-SOL power 6550/KT88 tubes test NOS

$200.00


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

$132.45


TUNGSOL 6550 Well-Balanced Gm & Ip PLATINUM MATCHED PAIR US MADE

$327.47


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

$186.28


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

$1,200.00


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

$284.45


Tung-Sol 6550 Duet Platinum Matched

$106.44


Tung Sol KT120 Cryo Matched Quad (4) - 6550 / KT88

$199.99


Tung-sol 6550 Match Pair Excellent Working Vintage USA Made 3 Mica 3 Getter Kt88

$360.15


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

$349.95


Tung Sol KT150 Cryo Matched Quad (4) KT88 6550 KT90 KT120

$389.99


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

$269.50


6 x Tung Sol factory platinum Matched 6550 24 hr Burn-in

$370.00


Factory Matched QUAD Tung-Sol Tungsol 6550 KT88 - For Tube Amplifiers

$155.00


Quad of Tung-Sol 6550 New Production Power Vacuum Tube

$139.92


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

$320.00


Tung Sol KT150 Cryo Matched Pair (2) KT88 6550 KT90 KT120

$194.99


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

$173.78


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

$69.46


Factory Matched OCTET Tung-Sol Tungsol 6550 KT88 - For Tube Amplifiers

$320.00


Matched Pairs (2 tubes) Tung Sol 6550 Reissue amp tubes, BRAND NEW

$68.25


Tung Sol 6550 Cryo Matched Pr. (2) - KT88

$89.99


VINTAGE TUNG-SOL "LESLIE" KT88 6550 ELECTRON TUBE - TEST EXCELLENT

$179.00


MATCHED TRIO VINTAGE TUNG-SOL RCA KT88 6550 NOS NIB ELECTRON TUBES

$874.95


One Single of Tung Sol 6550 tube, Brand New in Box !

$32.09


Tung Sol KT120 Cryo Matched Pair (2) - 6550 / KT88

$99.99


New Plate Current Tested Tung-Sol Reissue 6550 KT88 Coke Bottle Vacuum Tube

$37.77


1PC Tung-Sol 6550 Big Bulb Russia Vacuum Tubes Brand New

$43.00


VINTAGE Bell & Howell MILITARY Tube Amplifier Amp w/ TUNGSOL 6550 - RARE (1pair)

$1,700.00


Single Dynaco MK III MK 3 KT88/6550 GZ34 mono block Amp with Tung-Sol 6550 Tubes

$575.00


Tung-Sol 6550 Matched Vintage Tube Pair Metal Base Dual D Getters (Test 94%)

$500.00


Tung-Sol Factory Platinum Matched QUAD 6550 Reissue amp tubes NIB 24hr Burn-in

$127.95