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New old stock GE 6680 12AU7A preamp Vacuum Tube - 1964 - Red Label - TESTED*
New old stock GE 6680 12AU7A preamp Vacuum Tube - 1964 - Red Label - TESTED*

$19.59

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GE 12AU7A/6680 Vacuum Tube Pair NOS/NIB Matched Codes Tested Vacuum Tubes
GE 12AU7A/6680 Vacuum Tube Pair NOS/NIB Matched Codes Tested Vacuum Tubes

$31.95

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SYLVANIA 12AU7 /ecc82/ 6680 Tube Communications Quality (TESTED W/ TV-7D/U)
SYLVANIA 12AU7 /ecc82/ 6680 Tube Communications Quality (TESTED W/ TV-7D/U)

$35.00

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1 Vintage TESTED 6680 / 12AU7 tube, TUNGSOL, Black Plate
1 Vintage TESTED 6680 / 12AU7 tube, TUNGSOL, Black Plate

$13.50

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12AU7A/6680 Vacuum Tubes Genral Electric
12AU7A/6680 Vacuum Tubes Genral Electric

$22.00

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One 1960s GE 6680 12AU7A (ECC82) Tube - New Old Stock / New In Box
One 1960s GE 6680 12AU7A (ECC82) Tube - New Old Stock / New In Box

$21.95

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Strong 1958 GE 6680 12AU7 Short Pinched Grey Plates Copper Gr Serious Tubes T917
Strong 1958 GE 6680 12AU7 Short Pinched Grey Plates Copper Gr Serious Tubes T917

$12.00

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1 x 6680 (12AU7A) G.E. Tube*Low Noise *Tested Good*NOS*NIB*(3 Available)
1 x 6680 (12AU7A) G.E. Tube*Low Noise *Tested Good*NOS*NIB*(3 Available)

$17.99

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NOS NIB GE 6680 12AU7A Low Noise Matching Pair Preamp Tubes
NOS NIB GE 6680 12AU7A Low Noise Matching Pair Preamp Tubes

$40.00

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1- 6680 12AU7A Vacuum Tube Tested Gray Plates
1- 6680 12AU7A Vacuum Tube Tested Gray Plates

$6.99

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1 x 6680 (12AU7A) G.E. Tube*Low Noise *Tested Good*NOS*NIB*(6 Available)
1 x 6680 (12AU7A) G.E. Tube*Low Noise *Tested Good*NOS*NIB*(6 Available)

$17.99

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4 NOS GE 6680 12AU7A Vacuum Tubes - 1970's Audio Twin Triodes for Amps & PreAmps
4 NOS GE 6680 12AU7A Vacuum Tubes - 1970's Audio Twin Triodes for Amps & PreAmps

$50.00

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- Matched quad New production Russia Tung Sol 7581 / KT66 tubes #3
- Matched quad New production Russia Tung Sol 7581 / KT66 tubes #3

$180.00

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6680/12AU7A/ECC82 Sylvania 17mm Plates MaxiPreamp2/TV-7 tested (1) tube lot
6680/12AU7A/ECC82 Sylvania 17mm Plates MaxiPreamp2/TV-7 tested (1) tube lot

$29.99

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NOS TUNG-SOL 6680/12AU7A Audio Amplifier VACUUM TUBE USA Tested 7.5988-D
NOS TUNG-SOL 6680/12AU7A Audio Amplifier VACUUM TUBE USA Tested 7.5988-D

$33.95

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4 NOS GE 6680 12AU7A Vacuum Tubes - Audio Twin Triodes for Amps & PreAmps
4 NOS GE 6680 12AU7A Vacuum Tubes - Audio Twin Triodes for Amps & PreAmps

$70.00

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LOT of 2 Tube Closely Matched GE 12AU7A 6680 NOS NIB Tested Strong Balanced Tube
LOT of 2 Tube Closely Matched GE 12AU7A 6680 NOS NIB Tested Strong Balanced Tube

$34.45

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GE 6680/12AU7A AUDIO VACUUM TUBE, GRAY PLATE, O GETTER, COPPER POST TV-7 TESTED
GE 6680/12AU7A AUDIO VACUUM TUBE, GRAY PLATE, O GETTER, COPPER POST TV-7 TESTED

$12.00

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Strong RFT Germany 6680 12AU7A Labeled "AMC Great Britain" Serious Tubes D336
Strong RFT Germany 6680 12AU7A Labeled "AMC Great Britain" Serious Tubes D336

$25.00

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Used tested Tungsol 6680 tube
Used tested Tungsol 6680 tube

$6.00

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GE 12AU7A/6680 NOS/NIB Vacuum Tube Low Noise Communications Grade Vacuum Tube
GE 12AU7A/6680 NOS/NIB Vacuum Tube Low Noise Communications Grade Vacuum Tube

$17.95

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Matched Pair NOS Sylvania 6680 JAN 12AU7A Vacuum Tubes - TV7 Tested
Matched Pair NOS Sylvania 6680 JAN 12AU7A Vacuum Tubes - TV7 Tested

$30.00

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Rare Pair RFT Germany 6680 12AU7A Labeled "AMC Great Britain" Serious Tubes D38
Rare Pair RFT Germany 6680 12AU7A Labeled "AMC Great Britain" Serious Tubes D38

$60.00

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Rare Pair RFT Germany 6680 12AU7A Labeled "AMC Great Britain" Serious Tubes D32
Rare Pair RFT Germany 6680 12AU7A Labeled "AMC Great Britain" Serious Tubes D32

$60.00

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Lot of 7 Strong to NOS Balanced GE 6680 12AU7A ECC82 Vacuum Tubes - TV7 Tested
Lot of 7 Strong to NOS Balanced GE 6680 12AU7A ECC82 Vacuum Tubes - TV7 Tested

$35.00

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Rare Pair RFT Germany 6680 12AU7A Labeled "AMC Great Britain" Serious Tubes D28
Rare Pair RFT Germany 6680 12AU7A Labeled "AMC Great Britain" Serious Tubes D28

$60.00

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LOT OF 2 - RCA - 12AU7 / 6680 - VACUUM TUBES - CLEAR TOPS - TESTED
LOT OF 2 - RCA - 12AU7 / 6680 - VACUUM TUBES - CLEAR TOPS - TESTED

$31.00

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1953 Genalex KT66 Grey Glass Matching Pair Output Tubes Marconi Valve
1953 Genalex KT66 Grey Glass Matching Pair Output Tubes Marconi Valve

$350.00

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Vintage Sylvania 6680/12AU7A/ECC83 Vacuum Audio Tube
Vintage Sylvania 6680/12AU7A/ECC83 Vacuum Audio Tube

$126.00

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Siemens NPXA1896 Borosilicate Glass Metering Tube NSN 6680-01-007-6038
Siemens NPXA1896 Borosilicate Glass Metering Tube NSN 6680-01-007-6038

$61.97

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MATCHED NOS PAIR RCA 6L6GC KT66 TUBES DOUBLE GETTER USA MADE VINTAGE MATCH CODES
MATCHED NOS PAIR RCA 6L6GC KT66 TUBES DOUBLE GETTER USA MADE VINTAGE MATCH CODES

$162.00

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Ametek / Schutte & Koerting Metering Tube P/N 00S-8374M-002 NSN 6680-01-0221528
Ametek / Schutte & Koerting Metering Tube P/N 00S-8374M-002 NSN 6680-01-0221528

$77.83

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Factory Platinum Matched Pair Genalex Gold Lion KT66 tubes, BRAND NEW in Box !
Factory Platinum Matched Pair Genalex Gold Lion KT66 tubes, BRAND NEW in Box !

$119.54

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Sylvania NOS 12AU7A ECC82 6680 Gray Plates Top O Getter Vacuum Tube Tested
Sylvania NOS 12AU7A ECC82 6680 Gray Plates Top O Getter Vacuum Tube Tested

$25.00

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7 Tested Vintage GE-Made 12AU7/A/6680 Vacuum Tubes......................1 Money!
7 Tested Vintage GE-Made 12AU7/A/6680 Vacuum Tubes......................1 Money!

$32.49

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GE - 6680 - Vacuum Tube - New - Test Good
GE - 6680 - Vacuum Tube - New - Test Good

$20.00

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1954 Genalex KT66 Grey Glass Matching Pair Output Tubes Marconi Valve
1954 Genalex KT66 Grey Glass Matching Pair Output Tubes Marconi Valve

$400.00

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Pair of RCA 12AU7A 6680 Tested Good VACUUM TUBE Clear Top Side-Getter Long Plate
Pair of RCA 12AU7A 6680 Tested Good VACUUM TUBE Clear Top Side-Getter Long Plate

$30.40

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Vintage Tung Sol Ridge Plate 6680/12AU7/ECC83 Vacuum Audio Tube
Vintage Tung Sol Ridge Plate 6680/12AU7/ECC83 Vacuum Audio Tube

$100.80

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Stainless Steel Burner Replacement For810-3752-F,810-4580-S,810-6570-FModels,5PK
Stainless Steel Burner Replacement For810-3752-F,810-4580-S,810-6570-FModels,5PK

$79.50

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1958 GENALEX KT66 Vacuum Tubes SMOKE Curved Brown Base Date Matched Pair GEC
1958 GENALEX KT66 Vacuum Tubes SMOKE Curved Brown Base Date Matched Pair GEC

$599.99

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Vintage RCA 6680 12AU7 A Vacuum Tube
Vintage RCA 6680 12AU7 A Vacuum Tube

$26.99

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RCA 6680/12AU7A/ECC82 VACUUM TUBE GRAY PLATE, D GETTER,CLEAR TOPT V-7 TESTED NOS
RCA 6680/12AU7A/ECC82 VACUUM TUBE GRAY PLATE, D GETTER,CLEAR TOPT V-7 TESTED NOS

$15.23

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QTY 6 - MARCONI - 12AU7A / 6680 - RADIO TUBES - TV7 TESTED - STRONG
QTY 6 - MARCONI - 12AU7A / 6680 - RADIO TUBES - TV7 TESTED - STRONG

$29.99

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Pair of RCA 12AU7A 6680 Tested Good VACUUM TUBE Clear Top Side-Getter Long Plate
Pair of RCA 12AU7A 6680 Tested Good VACUUM TUBE Clear Top Side-Getter Long Plate

$33.40

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LIQUID LEVEL INDICATOR GLASS SIGHT TUBE w/ VALVES 3695K12 (NSN 6680-01-176-8363)
LIQUID LEVEL INDICATOR GLASS SIGHT TUBE w/ VALVES 3695K12 (NSN 6680-01-176-8363)

$44.95

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24" Glass tube ONLY (fits LIQUID LEVEL INDICATOR) 3695K12 (NSN 6680-01-176-8363)
24" Glass tube ONLY (fits LIQUID LEVEL INDICATOR) 3695K12 (NSN 6680-01-176-8363)

$19.95

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Matched Pair Mullard KT66 Grey Plate OO Getter England Tested Very Strong
Matched Pair Mullard KT66 Grey Plate OO Getter England Tested Very Strong

$250.00

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Unused Ridgid Pipe Die: 1/8 Pipe Dies for 500 Mono Heads (6680)
Unused Ridgid Pipe Die: 1/8 Pipe Dies for 500 Mono Heads (6680)

$39.99

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Pair of RCA 12AU7A 6680 Tested Good VACUUM TUBE Clear Top Side-Getter Long Plate
Pair of RCA 12AU7A 6680 Tested Good VACUUM TUBE Clear Top Side-Getter Long Plate

$32.40

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GE 6680 12AU7 Vacuum Tubes NOS? Medium Strong Testing Amplitrex (3)
GE 6680 12AU7 Vacuum Tubes NOS? Medium Strong Testing Amplitrex (3)

$25.00

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ge 6680 12au7 tube nos
ge 6680 12au7 tube nos

$18.50

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Pair of RCA 12AU7A 6680 Tested Good VACUUM TUBE Clear Top Side-Getter Long Plate
Pair of RCA 12AU7A 6680 Tested Good VACUUM TUBE Clear Top Side-Getter Long Plate

$32.40

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National Electronics USA Made 7581A/KT66 Power Tube Filament Tested Used
National Electronics USA Made 7581A/KT66 Power Tube Filament Tested Used

$61.00

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6680 GE VINTAGE TUBE NOS
6680 GE VINTAGE TUBE NOS

$10.00

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Pair of RCA 12AU7A 6680 Tested Good VACUUM TUBE Clear Top Side-Getter Long Plate
Pair of RCA 12AU7A 6680 Tested Good VACUUM TUBE Clear Top Side-Getter Long Plate

$29.40

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Strong Genelex KT66 Vacuum Tube 1956 Date
Strong Genelex KT66 Vacuum Tube 1956 Date

$139.99

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Vacuum Tube, KT66, Tube Amp Doctor, Premium Selected, Matched Pair, Power
Vacuum Tube, KT66, Tube Amp Doctor, Premium Selected, Matched Pair, Power

$93.90

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

$350.00

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GE 6680 12AU7A Test balanced- Short Grey Plates -Halo Get -1974
GE 6680 12AU7A Test balanced- Short Grey Plates -Halo Get -1974

$7.50

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NOS Dual Solid Disc Getter Philips 7581A Vintage PowerTube ~ KT66 Warm Rich Tone
NOS Dual Solid Disc Getter Philips 7581A Vintage PowerTube ~ KT66 Warm Rich Tone

$175.00

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Pair of RCA 12AU7A 6680 Tested Good VACUUM TUBE Clear Top Side-Getter Long Plate
Pair of RCA 12AU7A 6680 Tested Good VACUUM TUBE Clear Top Side-Getter Long Plate

$32.40

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Factory Platinum Matched Quad Genalex Gold Lion KT66 tubes, BRAND NEW in Box !
Factory Platinum Matched Quad Genalex Gold Lion KT66 tubes, BRAND NEW in Box !

$251.71

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Pair of RCA 12AU7A 6680 Tested Good VACUUM TUBE Clear Top Side-Getter Long Plate
Pair of RCA 12AU7A 6680 Tested Good VACUUM TUBE Clear Top Side-Getter Long Plate

$32.40

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One Matched Pair KT66 Tubes, Emitron, In Identical NOS Ratings, Rare Dark Bases
One Matched Pair KT66 Tubes, Emitron, In Identical NOS Ratings, Rare Dark Bases

$490.00

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New — Pair Of RCA 6680 Electronic Vacuum Tubes
New — Pair Of RCA 6680 Electronic Vacuum Tubes

$20.02

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National Electronics USA Made 7581A/KT66 Power Tube Filament Tested Used
National Electronics USA Made 7581A/KT66 Power Tube Filament Tested Used

$61.00

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KT66 - EL37, MULLARD Vintage audio tube, X 2 pcs, II , tested at AVO 160
KT66 - EL37, MULLARD Vintage audio tube, X 2 pcs, II , tested at AVO 160

$550.00

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Vacuum Tube, KT66, Tube Amp Doctor, Premium Selected, Matched Quad, Power
Vacuum Tube, KT66, Tube Amp Doctor, Premium Selected, Matched Quad, Power

$187.80

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LOT OF 2 COLLINS 6680 DIES 3-1/2" - 4" NPT CONDUIT PIPE DIES #2 / #3
LOT OF 2 COLLINS 6680 DIES 3-1/2" - 4" NPT CONDUIT PIPE DIES #2 / #3

$19.99

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GEC KT66 BRITISH PAIR OF NEW OLD STOCK 1950'S GREY GLASS VINTAGE VALVES TUBES
GEC KT66 BRITISH PAIR OF NEW OLD STOCK 1950'S GREY GLASS VINTAGE VALVES TUBES

$595.00

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1945 - 1948 Ford Flathead 8 Distributor Caps & Spark Plug Tubes Dent #6680
1945 - 1948 Ford Flathead 8 Distributor Caps & Spark Plug Tubes Dent #6680

$29.99

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National Electronics USA Made 7581A/KT66 Power Tube Filament Tested Used
National Electronics USA Made 7581A/KT66 Power Tube Filament Tested Used

$80.00

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1 VINTAGE EMITRON KT66 / 6L6G AUDIO TUBE MADE IN ENGLAND / GENALEX
1 VINTAGE EMITRON KT66 / 6L6G AUDIO TUBE MADE IN ENGLAND / GENALEX

$222.00

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

$2200.00

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GENALEX / EMITRON KT66 New old stock made in England (PAIR)
GENALEX / EMITRON KT66 New old stock made in England (PAIR)

$400.00

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2 X 12AU7A / 6680 RCA TUBE. 1960s PROD. COPPER RODS. PAIR. 18. CB403
2 X 12AU7A / 6680 RCA TUBE. 1960s PROD. COPPER RODS. PAIR. 18. CB403

$81.85

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1 VINTAGE EMITRON KT66 / 6L6G AUDIO TUBE MADE IN ENGLAND / GENALEX
1 VINTAGE EMITRON KT66 / 6L6G AUDIO TUBE MADE IN ENGLAND / GENALEX

$222.00

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1 VINTAGE GENALEX / GEC KT66 AUDIO TUBE MADE IN ENGLAND
1 VINTAGE GENALEX / GEC KT66 AUDIO TUBE MADE IN ENGLAND

$249.00

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

$1480.00

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8 Nice Tested Vintage General Electric 12AU7A/ECC82 Vacuum Tubes........1 Money!
8 Nice Tested Vintage General Electric 12AU7A/ECC82 Vacuum Tubes........1 Money!

$36.50

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GEC GENALEX KT66 6L6 CV1075 CV 321 VACUUM TUBE/VALVE NOS With Box price per tube
GEC GENALEX KT66 6L6 CV1075 CV 321 VACUUM TUBE/VALVE NOS With Box price per tube

$399.00

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72270441 TUBE AGCO TRACTOR 5680 6085 6670 6680 6690 7650
72270441 TUBE AGCO TRACTOR 5680 6085 6670 6680 6690 7650

$5.19

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Radiator Coolant Hose Lower Motorcraft KM-6680 fits 98-08 Ford Ranger 3.0L-V6
Radiator Coolant Hose Lower Motorcraft KM-6680 fits 98-08 Ford Ranger 3.0L-V6

$73.67

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Vacuum Tube, KT66, Genalex Gold Lion, Matched Pair, Power
Vacuum Tube, KT66, Genalex Gold Lion, Matched Pair, Power

$137.90

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1 VINTAGE GENALEX / GEC KT66 AUDIO TUBE MADE IN ENGLAND
1 VINTAGE GENALEX / GEC KT66 AUDIO TUBE MADE IN ENGLAND

$299.00

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

$838.00

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GE 7581A/KT66 vintage tube NOS
GE 7581A/KT66 vintage tube NOS

$100.00

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VERY RARE NOS 6L6G / 350B SYLVANIA * CUP GETTER ENGRAVED BASE TUBE 1947 USA KT66
VERY RARE NOS 6L6G / 350B SYLVANIA * CUP GETTER ENGRAVED BASE TUBE 1947 USA KT66

$198.00

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1 VINTAGE GENALEX / GEC KT66 AUDIO TUBE MADE IN ENGLAND
1 VINTAGE GENALEX / GEC KT66 AUDIO TUBE MADE IN ENGLAND

$269.00

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Vintage Pair Genalex KT66 Smoked Smooth Plate Foil Cup Getter England
Vintage Pair Genalex KT66 Smoked Smooth Plate Foil Cup Getter England

$550.00

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Vacuum Tube, KT66, Genalex Gold Lion, Matched Quad, Power
Vacuum Tube, KT66, Genalex Gold Lion, Matched Quad, Power

$275.80

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Vacuum Tube, KT66, Tube Amp Doctor, Premium Selected, Single, Power
Vacuum Tube, KT66, Tube Amp Doctor, Premium Selected, Single, Power

$46.95

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

$838.00

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KT66 OSRAM Black Coated Made In England Amplitrex Tested 1 Matched Pair 2 Pcs
KT66 OSRAM Black Coated Made In England Amplitrex Tested 1 Matched Pair 2 Pcs

$600.00

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New KT66 Genalex Gold Monarch Vacuum Tube, Red Label, Rare
New KT66 Genalex Gold Monarch Vacuum Tube, Red Label, Rare

$579.99

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Vacuum Tube, KT66, JJ Electronics, Apex Matched Quad, Power
Vacuum Tube, KT66, JJ Electronics, Apex Matched Quad, Power

$228.60

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72277537 TUBE AGCO TRACTOR 6085 6680 6690
72277537 TUBE AGCO TRACTOR 6085 6680 6690

$12.01

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KT66 OSRAM black coated made in England tested Hickok TV7 NOS
KT66 OSRAM black coated made in England tested Hickok TV7 NOS

$189.00

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86 Honda Fourtrax 125 2x4 Front Axle Carrier Pipe TRX125
86 Honda Fourtrax 125 2x4 Front Axle Carrier Pipe TRX125

$32.24

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