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Tungsol 6550


Matched Pair TungSol 6550 Solid Gray Plate Vacuum Tubes #4

$149.99


2 truly matched same dated 1965 tungsol 3 hole gray plate 6550 tubes

$149.99


Tung Sol 6550 Tube - Tested 105! - Made in USA!

$33.00


Single NOS Tung-Sol 3 Hole Gray Plate 6550. Date code 1967.

$175.00


vintage 6550 tung sol tubes pair

$80.00


(2) Tung Sol 6550 Tubes - Matched Pair - Tested 100! - Made in USA!

$50.00


Pair Tung Sol 6550 KT88 Solid Gray Plate RCA Branded Vacuum Tube

$275.00


(2) TUNGSOL 6550 TUBES

$229.00


2 truly matched strong same dated 1962 tungsol solid gray plate 6550 tubes

$279.99


+++ ELECTRON POWER TUBE TUNG-SOL ST 6550 - HICKOK tested - WORKING +++

$18.90


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

$138.55


(1) USED TUNGSOL 6550 TUBES

$129.00


Quad Tung-Sol 6550 3 Hole Grey Plate 6550 Audio Tubes USA 1970's

$399.99


(1) TUNGSOL SOLID PLATE 6550 TUBES

$169.00


Matched Pair of Tung-Sol 6550 3-hole NOS-testing Vacuum Tubes

$300.00


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

$130.00


Vintage 1975 pair Tung-Sol for RCA 6550 Power Tubes tested 3-hole plates

$250.00


1 x 6550 Tungsol(USA) Tube *Solid Black Plate*

$128.99


MATCHED 1964 TRIO VINTAGE TUNG-SOL HARMAN KARDON 6550 KT88 TUBES FOR CITATION II

$219.00


+++++ ELECTRON POWER TUBE TUNG-SOL 6550A ST - HICKOK tested VERY STONG +++++

$39.90


Tung-Sol (GE, RCA) 6550 Original Issue Tubes, Matched Pair - Tested, NOS, 1964

$400.00


Pair of Tung-Sol 6550 KT88 Black Plate Vacuum Tubes - Gm & Ip Matched

$400.00


(3) TUNGSOL 6550 TUBES

$329.00


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

$290.00


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

$199.99


(1) TUNGSOL 6550 TUBE

$129.00


Octet of Tung-Sol 6550 New Production Power Vacuum Tube

$279.84


Tung-Sol Set of Three 1963 6550 Vacuum Tubes 92% 93% 88% Solid Gray Plates

$280.00


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

$320.00


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

$155.00


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

$349.95


Sextet of Tung-Sol 6550 New Production Power Vacuum Tube

$209.88


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

$320.00


TUNG-SOL 6550 POWER TUBES FOR SYLVANIA NOS/NIB-ORIGINAL BOX SWEET AS WELL-TOP NO

$1,000.00


1 tungsol solid black plate 3 D getter 6550 tube #31

$79.99


Vacuum Tube - 6550, Tung-Sol Reissue, Single or Matched: Apex Matched Sextet

$218.70


Quad Set NOS NIB Tungsol JAN 6550 Audio Output Tubes Tested Closely Matched

$1,000.00


Tung sol 6550, NOS 2 PAIRS AND ONE SINGLE

$750.00


1 excellent tungsol solid gray plate 6550 tube #21

$79.99


Factory Matched Octet Svetlana KT88SV 6550 KT88 - For Tube Amplifiers

$328.00


Tung-Sol for GE 6550 3 Hole Grey Plate 6550 Audio Tubes USA Coke Bottle 70's.

$75.00


1 excellent tungsol solid gray plate 6550 tube #22

$89.99