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Vintage Genalex KT66 Audio Receiver Guitar Vacuum Tube Tested
$588.51 HKD
KT66 ORIGINAL MARSHALL SPARES MATCHED PAIR VALVE/TUBE
$502.29 HKD
Pair Osram KT66 Valves Tubes ST Shape
$3460.2 HKD - 12 bids
MARCONI OSRAM PAIR KT66 GREY SMOKING USED TESTED AVO MKIV.
$971.09 HKD - 9 bids
VERY RARE OSRAM MARCONI CV1075 KT66 GREY GLASS BROWN BASE MOV MADE IN DOVER 1955
$146.56 HKD - 5 bids
KT66 HL 6 Marconi 7 Pin Valve Tube with Black Base in Osram Box
$748.41 HKD - 3 bids
KT66 GEC # NOS/NIB # legendary tube # BOTTOM-OO-GETTER (10676)
$2328.73 HKD
KT66 GEC NOS/NIB # BOTTOM-OO-GETTER # legendary tube/oldest production (6446)
$2280.31 HKD
KT66 GEC # NOS # BOTTOM-OO-GETTER # legendary tube/oldest production (7335)
$2251.2 HKD
Matched Quad of KT-66  KT66 TUBES
$421.51 HKD - 1 bid
KT66 Brimar/GEC # NOS/NIB # BOTTOM-OO-GETTER # SMOKED GLASS - MILITARY (10514)
$2251.2 HKD
KT66 GEC # NOS/NIB # legendary tube # military smoked-glass-version # (10649)
$2251.2 HKD
KT66 Genalex Matched and Cryoset Quad (4) - 6L6 5881
$1412.53 HKD
GOLDEN DRAGON KT66 Retro Amplifier Power Tubes SINGLE Valve /Matched PAIR / QUAD
$892.84 HKD
GOLDEN DRAGON KT66 Retro Amplifier Power Tubes SINGLE Valve /Matched PAIR / QUAD
$1785.8 HKD
1 Vintage Genalex KT66 Audio Tube England
$1176.78 HKD
7581A KT66 GE MATCHED PAIR NOS VALVE/TUBE (LC19)
Buy: $1674.29 HKD
KT66 CV1075 GEC NOS VALVE/TUBE (LC26)
Buy: $1785.91 HKD
Marconi KT66 Double Halo New-Old Stock Valve / Vacuum Tube - Avo Tested - (#A)
Buy: $1674.29 HKD
Four  Matched KT66 Valves - Premium Tested 120 Day Warranty
$1395.13 HKD
2 x GEC KT66 Grey Test strong AVO MK4 Tested same date code
Buy: $3348.58 HKD
NOS ...NIB...4 General Electric GE KT66/7581A...Set Of 4
$3060.65 HKD
Matched Quad Tube Amp Doctor TAD KT66-STR Genalex Tube Remake 6L6 QUAD II MC-240
$1169.32 HKD
Matched Quads Genalex Gold Lion KT66 tubes,Reissue, NEW
$1261.14 HKD
TAD 6L6GC STR Cryo Treated Matched Power Tube Quad (4) 5881 KT66
Buy: $902.42 HKD
  RARE TUBE -1) KT66 OSRAM --    VERY STRONG
Buy: $1639.88 HKD
GEC KT66 VALVES TUBES
Buy: $3795.06 HKD
3 PIECES 7581 / KT66 GENERAL ELECTRIC SUPER TUBES NOS CONDITION MATCHED VINTAGE
$3099.89 HKD
(8) Factory Matched Genalex Gold Lion KT66  6L6 6L6GC
$2660.41 HKD
GEC Osram KT66 Black Base Smoked Glass Matched Pair Test Good
Buy: $6278.17 HKD
PM GUITAR Amplifier Power Tube RANGE => SELECT model from Menu (Single & Matched
$1785.8 HKD
Marconi KT66 Double Halo New-Old Stock Valve / Vacuum Tube - Avo Tested - (#B)
Buy: $1674.29 HKD
JJ/Tesla KT66 Power Tubes, Matched Quad
Buy: $1260.28 HKD
GE 7581 KT-66 Tubes - Matched Pair, Test NOS, Matched Codes
Buy: $706.3 HKD
KT66 GEC # NOS # legendary tube # BOTTOM-OO-GETTER (10442)
$2154.16 HKD
2 NOS KT66 Audio Tubes / Made in Russia -- TX2
$548.95 HKD
KT66 OSRAM  NOS VALVE/TUBE in Original Box Tests 100% on AVO MkIV Valve Tester
$1925.32 HKD
KT66 Quad Black Box Groove Tube Medium (4 Tubes) Fender KT 66 6L6G CV1075 EL37
Buy: $663.14 HKD
Vendo Quartetto valvole Elettroniche KT 66 GEC NOS (possibile permuta)
Buy: $8733.09 HKD
Matched Pair KT66  New Valve Tubes Gold Class Made By Shuguang China
$558.1 HKD
Matched Pair KT66 GEC # NOS/NIB # legendary tubes # BOTTOM-OO-GETTER (10436)
$4803.2 HKD
KT66 GEC # NOS # BOTTOM-OO-GETTER # SMOKED GLASS - MILITARY (10475)
$2251.2 HKD
Matched Pair Vintage 6L6G/KT66/6L6GB Yellow Logo Black Glass Tungsol - BangBang
$1961.95 HKD
PM GUITAR Amplifier Power Tube RANGE => SELECT model from Menu (Single & Matched
$892.84 HKD
KT88 Sextet Slovakia Groove Tube Low (6 Tubes) Fender KT66 KT90 6L6 EL34 6V6
Buy: $1879.55 HKD
4x NEW JJ Tesla KT66 Vacuum Tubes, Matched Quad TESTED
$1149.7 HKD
Matched Pair - NOS Gold Aero 7581A (6L6GC/KT66 similar) Very Rare Tubes/valve
Buy: $2074.17 HKD
FIVRE 6L6G EL37 KT66 SLIM/OVAL/DISC Mica Long Bulb Tubes OVER 100% Rare Version
Buy: $2619.93 HKD
Mullard KT66 GEC 1-Tube NOS OO Brown Base Clear Bottle Grt Britain Genalex*MINT!
$1438.82 HKD
ONE  SYLVANIA 6L6GC / 7581A / KT66 / STR387 NOS TUBE
Buy: $863.61 HKD
(4) Factory Matched Genalex Gold Lion KT66  6L6 6L6GC
$1326.28 HKD
KT88 Quartet Slovakia Black Box Groove Tube Medium (4 Tubes) Fender KT66 KT90
$267.53 HKD - 16 bids
KT66 OSRAM  VALVE/TUBE in Original Box Tests good on an AVO MkIV Valve Tester
$1674.18 HKD
Matched Octet (8 tubes) Genalex Gold Lion KT66 tubes,Reissue, NEW
$2414.54 HKD
TWO NOS SYLVANIA VINTAGE AMPLIFIER TUBES 5AR4 / GZ34 + 6L6GC / KT66 KNIGHT AUDIO
$1224.26 HKD
Matched Pair Vintage TungSol 6L6G/6L6 Coke Bottle Power Tubes - BangyBang Tubes
$1726.52 HKD
7581A KT66 GE NOS VALVE/TUBE (LC14)
Buy: $809.24 HKD
PERFECT NOS NIB MATCHED PAIR 6L6GC / 6L6 / KT66 SYLVANIA VINTAGE TUBES EXCELLENT
$2315.11 HKD
TESTED  MATCHED  VINTAGE  SYLVANIA  6L6GC  SAME DATE CODE - DA  1960S TUBE  KT66
$353.07 HKD - 1 bid
Brand New Tung-Sol Reissue KT66 Plate Current Matched Quad (4) Vacuum Tubes
Buy: $1114.08 HKD
KT88 Quartet Slovakia Black Box Groove Tube Medium (4 Tubes) Fender KT66 KT90
Buy: $1353.75 HKD
Brand New Tung-Sol Reissue KT66 Plate Current Matched Octet (8) Vacuum Tubes
Buy: $2079.28 HKD
Two Matched KT66 Valves - Premium Tested 120 Day Warranty
$814.71 HKD
TAD 6L6WGC-STR GE-Style Black-Plate Cryo Select Quad (4) KT66 5881
$784.7 HKD
New Current Matched Quad (4) Reissue Genalex Gold Lion KT66 6L6 Vacuum Tubes
$1020.14 HKD
GE KT66 Closely matched strong testing Tubes / Vlaves Quad II amplifier
$837.15 HKD
Brand New Tung-Sol Reissue KT66 Plate Current Matched Sextet (6) Vacuum Tubes
Buy: $1670.64 HKD
New Current Matched Octet (8) Reissue Genalex Gold Lion KT66 6L6 Vacuum Tubes
$2040.04 HKD
Matching pair-NIB Philips (Sylvania) 7581A (KT66/6L6GC) amplifiers tubes.  NOS.
$784.7 HKD
MEGA RARE 6L6G POWER TUBE TOSHIBA MADE VINATGE 6L6 / KT66 DOUBLR [] [] GETTERS
$1961.88 HKD
Matched Quad Vintage 6L6GC / KT66 / 6N3CE PAANO Russia Tube - BangyBang Tubes
$706.3 HKD
5881/6L6/KT66 Tung-Sol / manufacturer RCA # Holy Grail   (8506)
$475.47 HKD
JJ/Tesla KT66 Power Vacuum Tubes Valves, Matched Pair
Buy: $640.46 HKD
(2x) NEW KT66 JJ / Tesla Audio Output Tubes - VERIFIED MATCHED PAIR
$623.9 HKD
Genalex Gold Lion Tube Upgrade Kit Marshall Astoria Classic Amps w/KT66 ECC83
$1648.04 HKD
GE 7581 KT-66 Tubes - Matched Pair, Test NOS, Matched Codes #2
Buy: $706.3 HKD
Vintage EL34 Valve Tube Set For Leak TL25 / Audiomaster Valve Amplifier KT66 6L6
Buy: $1395.24 HKD
U52 PX25 PX4 PP5/400 ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram
$1227.81 HKD
U52 PX25 PX4 PP5/400 ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram
$2678.87 HKD
Tung Sol 7581A Matched + Cryo Treated Pair (2) 6L6 5881 KT66
Buy: $431.55 HKD
U52 PX25 PX4 PP5/400 ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram
$1674.29 HKD
GOLDEN DRAGON KT66 Retro Amplifier Power Tubes SINGLE Valve /Matched PAIR / QUAD
$479.85 HKD
U52 PX25 PX4 PP5/400 ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram
$1004.58 HKD
JJ Tesla KT66 Tubes Apex Matched Quad -for  Quad II MC30 MC240 other tube amps
$1251.73 HKD
5881/6L6WGB/KT66 GE  # Holy Grail # NOS/NIB  (7372)
$629.75 HKD
U52 PX25 PX4 PP5/400 ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram
$3906.68 HKD
U52 PX25 PX4 PP5/400 ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram
$892.96 HKD
6L6G / KT66 Pentode Audio Output Valve/Tube (Tests 100% New old Stock)
Buy: $557.54 HKD
U52 PX25 PX4 PP5/400 ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram
$4743.83 HKD
U52 PX25 PX4 PP5/400 ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram
$2790.49 HKD
U52 PX25 PX4 PP5/400 ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram
$5022.88 HKD
Tung Sol KT66 Cryo Treated Matched Pair (2)
Buy: $549.27 HKD
CERAMIC OCTAL VALVE/TUBE SOCKETS (KT66/EL34/6L6/GZ34 ETC)
$13.39 HKD
PM GUITAR Amplifier Power Tube RANGE => SELECT model from Menu (Single & Matched
$479.85 HKD
6L6GC JJ Electronics Cryo Treated - Matched Quad Vacuum Tubes 6L6 5881 KT66
$776.86 HKD
BRAND NEW RCA 6L6GC BLACK PLATE TUBE MCINTOSH KT66 OR 6CA7 / 6L6 / 6L6G NOS+ NIB
$995.1 HKD
Brand New Tung-Sol Reissue KT66 Plate Current Matched Pair (2) Vacuum Tubes
Buy: $588.19 HKD
1 X NEW JJ Tesla KT66 Vacuum Tube TESTED
$276.64 HKD
6L6GC + 6L6GC / kt66 /7581 Grey plates....amongst the best ever 6L6
Buy: $671.05 HKD
5881/6L6G/KT66 GE USA  # holy grail # 77mA (72mA=100%) # NOS #  (5399)
$572.5 HKD