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GEC KT66 Vacuum Tubes 4pcs Set Tested Working
$995.00

GEC KT66 Vacuum Tubes 4pcs Set Tested Working

New ListingKT66 GEC England good test only 1 tube audio
$298.00

New ListingKT66 GEC England good test only 1 tube audio

NOS Pair GEC KT66 Genalex 8304 Z Made in England 6L6G 6L6GC 7581 EL37
$699.00

NOS Pair GEC KT66 Genalex 8304 Z Made in England 6L6G 6L6GC 7581 EL37

Quad of Gm matched clear glass strong GEC KT66 power tubes.
$499.78

Quad of Gm matched clear glass strong GEC KT66 power tubes.

Matched Pair NIB 1970 GEC KT66, Gm 2% balance, Test 100%+, Curve Traced
$399.00

Matched Pair NIB 1970 GEC KT66, Gm 2% balance, Test 100%+, Curve Traced

Matched Quad (4pcs) G.E.C CV1075 KT66 Military Grade Valve Vacuum Tube
$1,200.00

Matched Quad (4pcs) G.E.C CV1075 KT66 Military Grade Valve Vacuum Tube

good GEC KT66 6L6 clear glass brown base for sale
$1,100.00

good GEC KT66 6L6 clear glass brown base for sale

GEC KT66 tube QUAD same batch NIB NOS
$2,588.95

GEC KT66 tube QUAD same batch NIB NOS

GEC/Marconi KT66 HK6 Smoked Glass Brown Base Black Plate Cup Getter Matched Pair
$500.00

GEC/Marconi KT66 HK6 Smoked Glass Brown Base Black Plate Cup Getter Matched Pair

GEC KT66 BRITISH PAIR OF NEW OLD STOCK OO GETTERS TESTED VINTAGE VALVES TUBE
$625.50

GEC KT66 BRITISH PAIR OF NEW OLD STOCK OO GETTERS TESTED VINTAGE VALVES TUBE

GEC KT66 tube pair same batch NIB NOS
$1,294.80

GEC KT66 tube pair same batch NIB NOS

GEC KT66 BRITISH PAIR OF OLD STOCK TESTED GOOD GREY GLASS VINTAGE VALVES TUBES
$445.50

GEC KT66 BRITISH PAIR OF OLD STOCK TESTED GOOD GREY GLASS VINTAGE VALVES TUBES

PAIR KT66 GEC BEAM -POWER TETRODE TUBE TESTED WITH ROETEST V10 BY CURVES NEW
$550.00

PAIR KT66 GEC BEAM -POWER TETRODE TUBE TESTED WITH ROETEST V10 BY CURVES NEW

NOS Platinum Match Pair KT66 ValveArt Welded Plates Dual Ring Getters Brown Base
$350.00

NOS Platinum Match Pair KT66 ValveArt Welded Plates Dual Ring Getters Brown Base

GEC/ Genalex KT66 6L6 CV1075 Smoked Glass Brown Base Cup Getter Matched Quad
$1,880.00

GEC/ Genalex KT66 6L6 CV1075 Smoked Glass Brown Base Cup Getter Matched Quad

GEC KT66 Matched Pair, (GENELEX) testing Excellent -see photos!
$899.95

GEC KT66 Matched Pair, (GENELEX) testing Excellent -see photos!

GEC KT44 VT 75B KT66 QUAD OF BRITISH VINTAGE NEW OLD STOCK MILITARY VALVES TUBE
$535.50

GEC KT44 VT 75B KT66 QUAD OF BRITISH VINTAGE NEW OLD STOCK MILITARY VALVES TUBE

NOS 1951 Black Base Osram KT-66 Matched Pair Vacuum Tubes Marconi GEC England
$1,199.99

NOS 1951 Black Base Osram KT-66 Matched Pair Vacuum Tubes Marconi GEC England

GEC 6AS7G 6080 NEW OLD STOCK BLACK PLATE PAN GETTER BRITISH VINTAGE VALVE TUBE
$795.00

GEC 6AS7G 6080 NEW OLD STOCK BLACK PLATE PAN GETTER BRITISH VINTAGE VALVE TUBE

KT66 GEC NOS Brown Base Made in England Amplitrex Tested 1MP #268001 268009
$838.00

KT66 GEC NOS Brown Base Made in England Amplitrex Tested 1MP #268001 268009

5 pcs GEC KT8C / CV1079 beam power tube UK NOS NIS KT66/6L6/5881
$560.00

5 pcs GEC KT8C / CV1079 beam power tube UK NOS NIS KT66/6L6/5881

GEC KT66 VT-75 CV 1075 RARE BRITISH VINTAGE OLD STOCK MILITARY VALVE TUBE
$445.50

GEC KT66 VT-75 CV 1075 RARE BRITISH VINTAGE OLD STOCK MILITARY VALVE TUBE

KT66, GEC Vintage audio tube, X 4 pcs, tested at AVO MKIII
$2,200.00

KT66, GEC Vintage audio tube, X 4 pcs, tested at AVO MKIII

New Old Stock 1951 Osram KT66 Vacuum Tube Black Base Marconi GEC Genalex NOS
$499.99

New Old Stock 1951 Osram KT66 Vacuum Tube Black Base Marconi GEC Genalex NOS

1MP KT66 GEC NOS Brown Base Made in England Amplitrex tested #269003/ 7
$838.00

1MP KT66 GEC NOS Brown Base Made in England Amplitrex tested #269003/ 7

GEC KT66 6L6 Clear Glass Brown Base Grey Plate OO Getter Matched Quad
$1,268.00

GEC KT66 6L6 Clear Glass Brown Base Grey Plate OO Getter Matched Quad

*ORIGINAL* Amperex KT66 Smoked Glass Vacuum Tubes (pair)
$350.00

*ORIGINAL* Amperex KT66 Smoked Glass Vacuum Tubes (pair)

KT8C GEC SIMILAR KT66 MARCONI OSRAM TUBE RÖHRE VALVE VALVOLA LAMPE
$30.00

KT8C GEC SIMILAR KT66 MARCONI OSRAM TUBE RÖHRE VALVE VALVOLA LAMPE

GEC KT66 Early Smoked Glass Pair Vintage Tubes - Excellent
$1,480.00

GEC KT66 Early Smoked Glass Pair Vintage Tubes - Excellent

KT66 GEC NOS made in England Amplitrex tested 1 Pc #3081001
$420.00

KT66 GEC NOS made in England Amplitrex tested 1 Pc #3081001

GEC KT66 CV1075 Matched Pair Vintage NOS Military Tubes - Excellent
$1,380.00

GEC KT66 CV1075 Matched Pair Vintage NOS Military Tubes - Excellent

GEC KT66 6L6 Clear Glass Brown Base OO Getter Tested NOS Matched Quad
$1,480.00

GEC KT66 6L6 Clear Glass Brown Base OO Getter Tested NOS Matched Quad

1946 Date Match Quad (4) Marconi KT66 Black Base Vacuum Tubes Osram GEC CV1075
$2,299.99

1946 Date Match Quad (4) Marconi KT66 Black Base Vacuum Tubes Osram GEC CV1075

1 - VINTAGE GENALEX / GEC KT66 AUDIO TUBE ENGLAND / 6L6
$249.00

1 - VINTAGE GENALEX / GEC KT66 AUDIO TUBE ENGLAND / 6L6

1 - VINTAGE GENALEX / GEC KT66 AUDIO TUBE ENGLAND / 6L6
$269.00

1 - VINTAGE GENALEX / GEC KT66 AUDIO TUBE ENGLAND / 6L6

GEC KT66 Early Smoked Glass Pair Vintage Tubes - Excellent
$1,480.00

GEC KT66 Early Smoked Glass Pair Vintage Tubes - Excellent

GEC KT66 NOS NIB - tested
$300.00

GEC KT66 NOS NIB - tested

1MP KT66 GEC NOS Cup getter made in England Amplitrex tested #1238001/1238002
$840.00

1MP KT66 GEC NOS Cup getter made in England Amplitrex tested #1238001/1238002

VT60(EL34 6L6 KT66) Cossor GEC U.K(Special 807 military grade) Qty 1 Match Pair
$192.00

VT60(EL34 6L6 KT66) Cossor GEC U.K(Special 807 military grade) Qty 1 Match Pair

PSVANE KT66GC Vacuum Tube Replace 7581A GEC KT66 Carbon Bulb New Matched Pair*1
$355.00

PSVANE KT66GC Vacuum Tube Replace 7581A GEC KT66 Carbon Bulb New Matched Pair*1

TAD KT66 PREMIUM - MATCHED PAIR
$99.95

TAD KT66 PREMIUM - MATCHED PAIR

GEC KT66 CV321 BRITISH MILITARY NEW OLD STOCK IN BOX 1940'S VINTAGE VALVE TUBE
$355.50

GEC KT66 CV321 BRITISH MILITARY NEW OLD STOCK IN BOX 1940'S VINTAGE VALVE TUBE

Vintage GEC KT66 Valves NEW (Price for One)
$517.92

Vintage GEC KT66 Valves NEW (Price for One)

GEC KT66 CV1075 Matched Pair Vintage NOS Military Tubes - Excellent
$1,380.00

GEC KT66 CV1075 Matched Pair Vintage NOS Military Tubes - Excellent

GEC KT66/6L6 Smoked Glass Made In UK Slightly Used Tested
$1,468.65

GEC KT66/6L6 Smoked Glass Made In UK Slightly Used Tested

GEC KT66 6L6 Clear Glass Brown Base Grey Plate OO Getter NOS Matched Quad
$1,368.00

GEC KT66 6L6 Clear Glass Brown Base Grey Plate OO Getter NOS Matched Quad

KT66 GEC NOS Black Plate Brown Base Made in England Amplitrex tested #3081001
$420.00

KT66 GEC NOS Black Plate Brown Base Made in England Amplitrex tested #3081001

GEC KT66 NOS - tested
$240.00

GEC KT66 NOS - tested

KT66-GEC Black Coated Glass Made in England Amplitrex Tested 1 Match Pair (2Pcs)
$816.00

KT66-GEC Black Coated Glass Made in England Amplitrex Tested 1 Match Pair (2Pcs)

GEC KT66 6L6 6L6G VT-75 CV1947 Clear Glass OO Getter Slightly Used Tested
$1,468.65

GEC KT66 6L6 6L6G VT-75 CV1947 Clear Glass OO Getter Slightly Used Tested

Vintage GEC KT66 Valves (Price is for 1 unit)
$291.33

Vintage GEC KT66 Valves (Price is for 1 unit)

GEC KT66 6l6 Grey Bottle Audio Valve Vacuum Tube Vintage TV7 Tested
$160.23

GEC KT66 6l6 Grey Bottle Audio Valve Vacuum Tube Vintage TV7 Tested

GEC KT66 Vacuum Tube 2-Piece Set, Used, Collector's Item
$715.42

GEC KT66 Vacuum Tube 2-Piece Set, Used, Collector's Item

GEC KT66 Vacuum Tubes Set of 2 Used Tested Amplifier Hi-Fi NOS
$736.99

GEC KT66 Vacuum Tubes Set of 2 Used Tested Amplifier Hi-Fi NOS

GEC KT66 tube nib
$640.93

GEC KT66 tube nib

Vintage GEC KT66 Valves, QTY.4 INCLUDED
$1,165.32

Vintage GEC KT66 Valves, QTY.4 INCLUDED

GEC Marconi KT66 6L6 Clear Glass Brown Base Grey Plate OO Getter Matched Quad
$1,368.00

GEC Marconi KT66 6L6 Clear Glass Brown Base Grey Plate OO Getter Matched Quad

VT60(EL34 6L6 KT66)Cossor GEC U.K(Special 807 military grade) Qty 1 Match Pair
$192.00

VT60(EL34 6L6 KT66)Cossor GEC U.K(Special 807 military grade) Qty 1 Match Pair

KT66 MWT made in England Audio Tube Amplitrex tested Qty 1MP #446007 2662001
$600.00

KT66 MWT made in England Audio Tube Amplitrex tested Qty 1MP #446007 2662001

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