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Tubes x 2  KT66  GEC UK,  Strong Testing,  Desired vintage pair
$826.56 HKD - 26 bids
New Current Matched Pair (2) Reissue Genalex Gold Lion KT66 6L6 Vacuum Tubes
$497.73 HKD
2 Genalex Kt 66 Tubes With Boxes For Display / Collecting
$312.1 HKD
Kt66 Tube tests 80ma Ia gm 7.4 on AVO IV
$514.54 HKD - 12 bids
KT66 ORIGINAL MARSHALL SPARES MATCHED PAIR VALVE/TUBE
$463.09 HKD
2 Genalex KT66 Tubes England UK AMPLITREX TESTED
Buy: $1950.66 HKD
GOLDEN DRAGON KT66 Retro Amplifier Power Tubes SINGLE Valve /Matched PAIR / QUAD
$442.41 HKD
CV1075 KT66 GEC  Grey Glass Brown Base RL   New Old Stock Tube Valve  1 pc O17
$1872.94 HKD
GOLDEN DRAGON KT66 Retro Amplifier Power Tubes SINGLE Valve /Matched PAIR / QUAD
$823.17 HKD
MATCHED PAIR  NOS GEC MARCONI KT66 TUBE VALVE
Buy: $3669.58 HKD
GEC. MO-V KT66 VALVE/TUBE. AVO TEST STRONG. BROWN BASE, GREY GLASS 1959 (2)
$1234.91 HKD
Matched Quad KT66 CV1075 GED New Original Boxed Military Specification Tested
Buy: $6637.62 HKD
CLEAN NIB Genalex KT66 TESTED VERY STRONG @ 113% NEW NOS+
Buy: $1552.72 HKD
Strong Matched Quad of GE 7591A ~ KT66  Vacuum Tubes
$1708.7 HKD
2x NEW JJ Tesla KT66 Vacuum Tubes, Matched Pair TESTED
$571.54 HKD
Marconi KT66 Double Halo New-Old Stock Valve / Vacuum Tube - Avo Tested - (#A)
Buy: $1543.63 HKD
Marconi KT66 Double Halo New-Old Stock Valve / Vacuum Tube - Avo Tested - (#B)
Buy: $1543.63 HKD
Matched Pair KT66 GEC # NOS/NIB # legendary tubes # BOTTOM-OO-GETTER (10436)
$4552.49 HKD
KT66 GEC # NOS # legendary tube # BOTTOM-OO-GETTER (10442)
$2041.72 HKD
NOS Matched Pair of Valve Art KT66 Vacuum Tubes w Sockets -- TX2
$467.77 HKD
CURVE TRACER MATCHED PAIR OF 6L6GC 7581A KT66 GE & WESTINGHOUSE VACUUM TUBES
$546.11 HKD
Matched Pair KT66  New Valve Tubes Gold Class Made By Shuguang China
$514.54 HKD
KT66 Marconi GEC Clear Glass UAZ  New Old Stock Tube Valve  1 pc O17
$1770.03 HKD
KT66 GEC GRADE 1 TESTED MATCHED PAIR VALVE/TUBE (LC32)
$2675.63 HKD
gec kt66 quad , vacuum tube audio valve NOS
Buy: $7718.16 HKD
KT66 MARCONI NOS BOXED VALVE/TUBE (LC14)
$1543.63 HKD
Tung Sol 7581A Matched + Cryo Treated Pair (2) 6L6 5881 KT66
Buy: $390.05 HKD
*** ORIGINAL NOS MULLARD KT66 TUBE TESTED 109%
$1010.44 HKD
PM GUITAR Amplifier Power Tube RANGE => SELECT model from Menu (Single & Matched
$1646.44 HKD
KT66 Genalex Matched and Cryoset Pair (2) - 6L6 5881
$663.15 HKD
KT66 Genalex Matched and Cryoset Quad (4) - 6L6 5881
$1404.39 HKD
Four  Matched KT66 Valves - Premium Tested 120 Day Warranty
$1420.04 HKD
KT66 OSRAM GRADE 1 MATCHED PAIR VALVE/TUBE (LC6)
$2675.63 HKD
KT66 OSRAM NOS BOXED VALVE/TUBE (LC7)
$1646.54 HKD
TAD 6L6GC STR Cryo Treated Matched Power Tube Quad (4) 5881 KT66
Buy: $858.21 HKD
KT66 GEC NOS/NIB # BOTTOM-OO-GETTER # legendary tube/oldest production (6446)
$2161.28 HKD
KT66 GEC # NOS # BOTTOM-OO-GETTER # legendary tube/oldest production (7335)
$2133.69 HKD
Matched Quads Genalex Gold Lion KT66 tubes,Reissue, NEW
$1281.82 HKD
KT66 GEC # NOS/NIB # legendary tube # BOTTOM-PAN-GETTER (7137b)
$2133.69 HKD
KT66 GEC # NOS/NIB # legendary tube # BOTTOM-OO-GETTER (7666)
$2207.27 HKD
Genalex KT66 Vintage Vacuum Tube Smoked Glass Made in England NOS (Test 96%)
Buy: $2613.88 HKD
Matched Pair KT66 GEC # NOS # legendary tubes # BOTTOM-OO-GETTER (10437)
$4552.49 HKD
6L6GC JJ Electronics Cryo Treated - Matched Quad Vacuum Tubes 6L6 5881 KT66
$772.38 HKD
GE KT66 Closely matched strong testing Tubes / Vlaves Quad II amplifier
$926.18 HKD
Tung Sol KT66 Cryo Treated Matched Pair (2)
Buy: $546.11 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$205.82 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$205.82 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$154.36 HKD
(8) Factory Matched Genalex Gold Lion KT66  6L6 6L6GC
$2645.09 HKD
GE 7581 KT66 6L6GC PERFECT MATCH PAIR DBL GETR TEST NOS VINTAGE 1969 FOR AMPEREX
$623.82 HKD
Two Matched KT66 Valves - Premium Tested 120 Day Warranty
$751.13 HKD
Tung-Sol Tube Upgrade Kit For Marshall Astoria Classic Amps w/KT66 12AX7
$1622.95 HKD
Genalex Gold Lion Tube Upgrade Kit For Marshall Astoria Custom Amps w/KT66 ECC83
$1935.05 HKD
NEW - JJ/Tesla KT66 matched pair vacuum tubes valves
Buy: $636.77 HKD
KT66 Teslovak Mullard New Matched Pair 24 Hour Burn-In 6L6GC KT77 Plug n Play
Buy: $335.43 HKD
6L6G / KT66 Pentode Audio Output Valve/Tube (Tests 100% New old Stock)
Buy: $514.03 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$102.91 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$51.45 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$51.45 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$51.45 HKD
1 PAIR BLACK PLATE 6L6GC  RCA 1963 VINTAGE Guild POWER TUBES TESTED 539C Hickok
$1950.27 HKD
JJ Tesla KT66 Tubes Apex Matched Quad -for  Quad II MC30 MC240 other tube amps
$1244.52 HKD
ONE  SYLVANIA 6L6GC / 7581A / KT66 / STR387 NOS TUBE
Buy: $910.5 HKD
5881/6L6WGB/KT66 GE  # Holy Grail # NOS/NIB  (7372)
$596.88 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$257.27 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$257.27 HKD
NEW -- Matched Quad of JJ/Tesla KT66 power tubes
Buy: $1253.02 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$205.82 HKD
NOS GE USA 7581A [KT66] Grey Plate 2 Disc Get Vacuum Tube 100+%
Buy: $545.79 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$154.36 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$154.36 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$154.36 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$154.36 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$205.82 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$205.82 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$205.82 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$205.82 HKD
GEC. MO-V KT66 VALVE/TUBE. AVO TEST STRONG. BROWN BASE, GREY GLASS 1959 (1)
$1234.91 HKD
New Current Matched Quad (4) Reissue Genalex Gold Lion KT66 6L6 Vacuum Tubes
$999.44 HKD
GOLDEN DRAGON KT66 Retro Amplifier Power Tubes SINGLE Valve /Matched PAIR / QUAD
$442.41 HKD
KT66 GEC GRADE 1 TESTED VALVE/TUBE (LC48)
$1337.81 HKD
4x NEW JJ Tesla KT66 Vacuum Tubes, Matched Quad TESTED
$1143.08 HKD
KT66 MARCONI NOS BOXED VALVE/TUBE (LC21)
$1543.63 HKD
KT66 OSRAM NOS VALVE/TUBE (LC30)
$1646.54 HKD
Matched Octet (8 tubes) Genalex Gold Lion KT66 tubes,Reissue, NEW
$2454.0 HKD
(4) Factory Matched Genalex Gold Lion KT66  6L6 6L6GC
$1318.64 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$154.36 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$154.36 HKD
TAD 6L6WGC-STR GE-Style Black-Plate Cryo Select Quad (4) KT66 5881
$780.18 HKD
PM GUITAR Amplifier Power Tube RANGE => SELECT model from Menu (Single & Matched
$823.17 HKD
TAD 6L6GC STR Cryo Treated Matched Pair (2) 5881 KT66
Buy: $468.08 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$257.27 HKD
2 Groove Tubes, TUBE GT-KT66-C MED DUET matched, Fender, Brand New In Box !
$430.7 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$205.82 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$205.82 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$154.36 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$154.36 HKD
TAD 6L6WGC-STR GE-Style Black-Plate Cryo Select Pair (2) KT66 5881
$429.07 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$102.91 HKD
Mullard ECC83 KT61 KT66 GZ34 12BH7 ECC82 Mullard Marconi Osram etc 160 pcs
$102.91 HKD