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Pair Of Vintage RCA 6550 Vacuum Tubes Matched Codes TV7 DU Tested Strong!
Pair Of Vintage RCA 6550 Vacuum Tubes Matched Codes TV7 DU Tested Strong!

$159.99

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Tung-Sol 6550 Electron Tubes, matching pair
Tung-Sol 6550 Electron Tubes, matching pair

$150.00

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Tung-Sol 6550 Vacuum Tube pair (2ct) Vintage Coke Bottle Russia Test Good
Tung-Sol 6550 Vacuum Tube pair (2ct) Vintage Coke Bottle Russia Test Good

$89.00

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GE 6550 Vacuum tubes "pair"
GE 6550 Vacuum tubes "pair"

$50.00

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Pair of 2 Audio Matched New Tung-Sol 6550 Vacuum Amplifier Amp Tubes Slovenia
Pair of 2 Audio Matched New Tung-Sol 6550 Vacuum Amplifier Amp Tubes Slovenia

$99.99

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Matched Pair Tung Sol 6550 Tubes / KT6
Matched Pair Tung Sol 6550 Tubes / KT6

$249.95

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Electro Harmonix 6550EH NEW Matched Pair of Vacuum Tubes TESTED
Electro Harmonix 6550EH NEW Matched Pair of Vacuum Tubes TESTED

$85.00

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Pair NOS NIB GE 6550A Tubes Amplitrex Tested 100%
Pair NOS NIB GE 6550A Tubes Amplitrex Tested 100%

$250.00

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1997 International Servicemaster 6550 Russia Matched Pair Output Tubes
1997 International Servicemaster 6550 Russia Matched Pair Output Tubes

$60.00

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Factory Matched Pair Tung Sol 6550 tubes, Brand New in Box TESTED
Factory Matched Pair Tung Sol 6550 tubes, Brand New in Box TESTED

$120.00

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Matched Pair RCA - Tung Sol 6550 Tubes / No Guide Pins / KT4
Matched Pair RCA - Tung Sol 6550 Tubes / No Guide Pins / KT4

$195.00

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Pair Fender Groove Tubes GT-6550 Test Strong
Pair Fender Groove Tubes GT-6550 Test Strong

$59.95

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Brand New Matched Pair (2) Genalex Gold Lion Reissue KT88 / 6550 Vacuum Tubes
Brand New Matched Pair (2) Genalex Gold Lion Reissue KT88 / 6550 Vacuum Tubes

$199.01

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Matched Pairs GE 6550A NOS NIB Beam Power Tubes. Test NEW (over 60) on TV7-D/U.
Matched Pairs GE 6550A NOS NIB Beam Power Tubes. Test NEW (over 60) on TV7-D/U.

$349.00

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GE 6550 Vacuum tubes..............Matched pair
GE 6550 Vacuum tubes..............Matched pair

$124.95

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PAIR Svetlana 6550C & Winged C OUTPUT Tubes - TESTED STRONG on Hickok
PAIR Svetlana 6550C & Winged C OUTPUT Tubes - TESTED STRONG on Hickok

$119.50

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RCA 6550 Vintage Coke Bottle Three Hole Vacuum Tube Röhren
RCA 6550 Vintage Coke Bottle Three Hole Vacuum Tube Röhren

$299.00

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Matched Pair of Sylvania 6550 Vacuum Tubes / KT3
Matched Pair of Sylvania 6550 Vacuum Tubes / KT3

$149.95

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Matched Quad NOS Svetlana SED Winged C 6550/KT88 tubes - 2001 - Test NEW
Matched Quad NOS Svetlana SED Winged C 6550/KT88 tubes - 2001 - Test NEW

$399.99

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Matched Date PAIR Sylvania USA 6550 Tubes Metal Base 1970s USED - Test 100% NOS
Matched Date PAIR Sylvania USA 6550 Tubes Metal Base 1970s USED - Test 100% NOS

$135.85

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MATCHED PAIR OF AUDIO CLASSICS 6550 STOCK VACUUM TUBES (BJR1011)
MATCHED PAIR OF AUDIO CLASSICS 6550 STOCK VACUUM TUBES (BJR1011)

$99.99

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Matched Pair Sylvania - Tung Sol 6550 Tubes / KT2
Matched Pair Sylvania - Tung Sol 6550 Tubes / KT2

$249.95

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JJ 6550 Power Vacuum Tube MATCHED PAIR
JJ 6550 Power Vacuum Tube MATCHED PAIR

$115.00

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GE 6550 Vacuum tubes.... Groove Tube Label..........Matched pair
GE 6550 Vacuum tubes.... Groove Tube Label..........Matched pair

$124.95

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Matched Pair Tung Sol 6550 Tubes / KT3
Matched Pair Tung Sol 6550 Tubes / KT3

$249.95

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Matched Pair Tung Sol 6550 Tubes / KT7
Matched Pair Tung Sol 6550 Tubes / KT7

$249.95

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Svetlana 6550C Vacuum Tubes NOS/NIB Tested and Matched Pair
Svetlana 6550C Vacuum Tubes NOS/NIB Tested and Matched Pair

$139.00

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Matched Pair of Sylvania 6550 Vacuum Tubes / KT4
Matched Pair of Sylvania 6550 Vacuum Tubes / KT4

$149.95

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Brand New Factory Matched Quad (4) Tung-Sol Reissue KT120 / KT-120 Vacuum Tubes
Brand New Factory Matched Quad (4) Tung-Sol Reissue KT120 / KT-120 Vacuum Tubes

$370.28

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KT88 6550 / Matched Pair / LINLAI / Perfect HIFI Audio / Vacuum Tube Amp Classic
KT88 6550 / Matched Pair / LINLAI / Perfect HIFI Audio / Vacuum Tube Amp Classic

$86.66

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GE 6550A Tubes Pair General Electric Vacuum tube Test Completed
GE 6550A Tubes Pair General Electric Vacuum tube Test Completed

$229.99

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Matched Pair G.E.C KT88 6550 Genalex Made in UK Test Good Tube
Matched Pair G.E.C KT88 6550 Genalex Made in UK Test Good Tube

$398.45

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Matched Quad Svetlana Winged =c= 6550 C Tube Tested Strong #31
Matched Quad Svetlana Winged =c= 6550 C Tube Tested Strong #31

$350.00

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Matched Pair Made in Russia Tung-Sol 6550 Tested Strong
Matched Pair Made in Russia Tung-Sol 6550 Tested Strong

$80.00

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Matched Pair of Sylvania 6550 Vacuum Tubes / KT5
Matched Pair of Sylvania 6550 Vacuum Tubes / KT5

$149.95

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Matched Pair NOS Svetlana SED Winged C 6550/KT88 tubes - 2001 - Test NEW
Matched Pair NOS Svetlana SED Winged C 6550/KT88 tubes - 2001 - Test NEW

$199.99

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Matched Pair of Sylvania 6550 Vacuum Tubes / KT2
Matched Pair of Sylvania 6550 Vacuum Tubes / KT2

$149.95

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Matched Pair of Sylvania 6550 Vacuum Tubes / KT1
Matched Pair of Sylvania 6550 Vacuum Tubes / KT1

$149.95

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1 Matched Pair PSVANE KT88-PT HiFi Series Vacuum Tubes 6550
1 Matched Pair PSVANE KT88-PT HiFi Series Vacuum Tubes 6550

$100.44

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Closely Matched Pair GE 6550A Tested Strong Tube
Closely Matched Pair GE 6550A Tested Strong Tube

$168.45

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vintage GE 6550 Vacuum tubes....Matched pair... NOS ....Original Boxes
vintage GE 6550 Vacuum tubes....Matched pair... NOS ....Original Boxes

$249.95

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Matched Pair GE - Tung Sol 6550 Tubes / KT5
Matched Pair GE - Tung Sol 6550 Tubes / KT5

$249.95

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Factory Platinum Matched Pair Tung Sol 6550 tubes, Brand New in Box !
Factory Platinum Matched Pair Tung Sol 6550 tubes, Brand New in Box !

$139.95

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Electro Harmonix 6550EH Matched Pair of Vacuum Tubes Used & Tested
Electro Harmonix 6550EH Matched Pair of Vacuum Tubes Used & Tested

$99.99

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2 x NOS GE USA TripleDiscGetter 6550A ~ Matched Vintage Power Tubes ~ Grail Tone
2 x NOS GE USA TripleDiscGetter 6550A ~ Matched Vintage Power Tubes ~ Grail Tone

$375.00

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Brand New Current Matched Pair (2) Electro-Harmonix 6550 Ceramic Vacuum Tubes
Brand New Current Matched Pair (2) Electro-Harmonix 6550 Ceramic Vacuum Tubes

$150.77

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Groove tube 6550c pair
Groove tube 6550c pair

$99.00

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Matched Pair NOS Svetlana SED Winged C 6550/KT88 tubes - 2001 - Test NEW
Matched Pair NOS Svetlana SED Winged C 6550/KT88 tubes - 2001 - Test NEW

$199.99

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New Current Matched Pair Svetlana 6550 / 6550C Vacuum Tube
New Current Matched Pair Svetlana 6550 / 6550C Vacuum Tube

$156.26

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1 Pair 8-pin Bias Current Probes Tester VU Meter for EL34 KT88 6L6 6V6 6550 Tube
1 Pair 8-pin Bias Current Probes Tester VU Meter for EL34 KT88 6L6 6V6 6550 Tube

$59.99

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Brand New Matched Pair (2) Genalex Gold Lion Reissue KT88 / 6550 Vacuum Tubes
Brand New Matched Pair (2) Genalex Gold Lion Reissue KT88 / 6550 Vacuum Tubes

$202.41

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Brand New Plate Current Matched Pair 2x Sovtek 6550WE Vacuum Tubes
Brand New Plate Current Matched Pair 2x Sovtek 6550WE Vacuum Tubes

$150.77

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NOS Shuguang KT88 Tubes MATCHED Pair 6550 6550A Amplitrex Tested L@@K
NOS Shuguang KT88 Tubes MATCHED Pair 6550 6550A Amplitrex Tested L@@K

$70.00

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Matched Pair NOS/NIB General Electric 6550A tubes Triple getter USA - Tests NOS
Matched Pair NOS/NIB General Electric 6550A tubes Triple getter USA - Tests NOS

$299.99

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Factory Platinum Matched Pair Genalex Gold Lion KT88 tubes, BRAND NEW in Box !
Factory Platinum Matched Pair Genalex Gold Lion KT88 tubes, BRAND NEW in Box !

$164.95

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Closely Matched Pair GE 6550A Tested Strong Tube
Closely Matched Pair GE 6550A Tested Strong Tube

$178.45

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Closely Matched Pair G.E.C KT88 6550 Genalex Same Date Made in UK Test Good Tube
Closely Matched Pair G.E.C KT88 6550 Genalex Same Date Made in UK Test Good Tube

$598.45

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Pair of Hot Rodded Heathkit W-5M Tube Amplifiers / Thordarson Trans - 6550 / KT
Pair of Hot Rodded Heathkit W-5M Tube Amplifiers / Thordarson Trans - 6550 / KT

$1095.00

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Brand New Plate Current Matched Pair 2x Mullard Reissue KT88 6550 Vacuum Tubes
Brand New Plate Current Matched Pair 2x Mullard Reissue KT88 6550 Vacuum Tubes

$160.79

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Factory Platinum Matched Pair Svetlana KT88 Tubes, Brand NEW in Box !
Factory Platinum Matched Pair Svetlana KT88 Tubes, Brand NEW in Box !

$139.82

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Pair of Electro-Harmonix 6550 EH Power Vacuum Tube
Pair of Electro-Harmonix 6550 EH Power Vacuum Tube

$135.90

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Two Pairs 6550 Factory Matched Groove Tubes GT-6550C || Curve Tracer Tested
Two Pairs 6550 Factory Matched Groove Tubes GT-6550C || Curve Tracer Tested

$169.00

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Closely Matched Pair GE 6550A Tested Strong Tube
Closely Matched Pair GE 6550A Tested Strong Tube

$178.45

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Brand New Plate Current Matched Pair (2) Mullard Reissue KT88 6550 Vacuum Tubes
Brand New Plate Current Matched Pair (2) Mullard Reissue KT88 6550 Vacuum Tubes

$163.54

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1 New Matched Pair PSVANE UK KT88 UK-KT88 Audio Valve Vacuum Tube /6550/KT120
1 New Matched Pair PSVANE UK KT88 UK-KT88 Audio Valve Vacuum Tube /6550/KT120

$118.99

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Matched Pair Audio Research 6550 Tubes -- KT1
Matched Pair Audio Research 6550 Tubes -- KT1

$89.95

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Top Matched Pair Vintage TUNG-SOL 6550 Audio Tubes / NOS / AT1000 / KT88
Top Matched Pair Vintage TUNG-SOL 6550 Audio Tubes / NOS / AT1000 / KT88

$549.00

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Matched Pair General Electric 6550A tubes Triple getter - USA - Very Strong
Matched Pair General Electric 6550A tubes Triple getter - USA - Very Strong

$219.99

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6550 TUNG-SOL Type 2 - 4th Gen Halo Getter Three Hole Matched Pair USA Tubes
6550 TUNG-SOL Type 2 - 4th Gen Halo Getter Three Hole Matched Pair USA Tubes

$280.82

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RUBY 6550ASTR Power Vacuum Tube MATCHED PAIR SHUGUANG
RUBY 6550ASTR Power Vacuum Tube MATCHED PAIR SHUGUANG

$112.00

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TS 6550 Coke Bottle Style Tubes (2) Matching Pair & Date Codes 6405-3
TS 6550 Coke Bottle Style Tubes (2) Matching Pair & Date Codes 6405-3

$349.99

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Sovtek 6550 WE Vacuum tubes......Matched pair....NOS...Double Halos
Sovtek 6550 WE Vacuum tubes......Matched pair....NOS...Double Halos

$109.95

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Tube Amp Doctor MOV KT88 6550 TAD KT88-STR Matched Pair Octal Base
Tube Amp Doctor MOV KT88 6550 TAD KT88-STR Matched Pair Octal Base

$161.28

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PERFECT MATCHED PAIR OF PHILLIPS US MADE 6550(KT-88) POWER TUBES
PERFECT MATCHED PAIR OF PHILLIPS US MADE 6550(KT-88) POWER TUBES

$169.99

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Matched Pair General Electric 6550A tubes Triple getter - USA - Very Strong
Matched Pair General Electric 6550A tubes Triple getter - USA - Very Strong

$219.99

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Vtg GE 6550 Leslie Tube Pair for 122/145/147 Tested Strong +80% W2
Vtg GE 6550 Leslie Tube Pair for 122/145/147 Tested Strong +80% W2

$161.99

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Closely Matched Pair GE 6550A Tested Strong Tube
Closely Matched Pair GE 6550A Tested Strong Tube

$168.45

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Closely Matched Pair GE 6550A Tested Strong Tube
Closely Matched Pair GE 6550A Tested Strong Tube

$178.45

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1PC NEW Audio Valve Vacuum Russia Mullard KT88 Replace 6550
1PC NEW Audio Valve Vacuum Russia Mullard KT88 Replace 6550

$84.99

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Brand New Matched Pair Groove Tubes GT 6550 (KT88) Power Tubes Hickok Tested
Brand New Matched Pair Groove Tubes GT 6550 (KT88) Power Tubes Hickok Tested

$145.00

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Closely Matched Pair Electro-Harmonix KT88 6550 NOS NIB Tested Tube
Closely Matched Pair Electro-Harmonix KT88 6550 NOS NIB Tested Tube

$114.45

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Vacuum Tube, 6550, JJ Electronics, Apex Burned-In Matched Pair, Power
Vacuum Tube, 6550, JJ Electronics, Apex Burned-In Matched Pair, Power

$119.80

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Pair of Sylvania 6550 Tubes Tested and Matched (e)
Pair of Sylvania 6550 Tubes Tested and Matched (e)

$150.00

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Svetlana 6550c Power Tubes - Matched Set
Svetlana 6550c Power Tubes - Matched Set

$99.00

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KT88 tube 6550 ecg Philips
KT88 tube 6550 ecg Philips

$220.00

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Tung Sol 6550 (Matched Pair)
Tung Sol 6550 (Matched Pair)

$268.81

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Electro-Harmonix 6550Eh Matched Pair Vacuum Tube
Electro-Harmonix 6550Eh Matched Pair Vacuum Tube

$180.64

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NOS Rivera GE 6550A Tubes
NOS Rivera GE 6550A Tubes

$225.00

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Brand New Plate Current Matched Pair (2) Sovtek 6550WE Vacuum Tubes
Brand New Plate Current Matched Pair (2) Sovtek 6550WE Vacuum Tubes

$153.35

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Quad Mathced PSVANE KT88-T MarK II Classic Grade Vacuum Tube replace CV5220 6550
Quad Mathced PSVANE KT88-T MarK II Classic Grade Vacuum Tube replace CV5220 6550

$189.99

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Closely Matched Pair Electro-Harmonix KT88 6550 NOS NIB Same Date Tested Tube
Closely Matched Pair Electro-Harmonix KT88 6550 NOS NIB Same Date Tested Tube

$114.45

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Matched pair KT88 6550 vacuum tube electron tube audio power output tube
Matched pair KT88 6550 vacuum tube electron tube audio power output tube

$79.00

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Matched Pair McIntosh KT88 tubes - Russia - Test NEW
Matched Pair McIntosh KT88 tubes - Russia - Test NEW

$149.99

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SVETLANA 6550C Vacuum Tube Matched QUAD 4 Sets USED JAPAN vintage audio analog
SVETLANA 6550C Vacuum Tube Matched QUAD 4 Sets USED JAPAN vintage audio analog

$1079.99

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Matched pair 6550A KT88 6550 vacuum tube electron tube audio power output tube
Matched pair 6550A KT88 6550 vacuum tube electron tube audio power output tube

$89.00

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6550 Tung sol USA , one pair
6550 Tung sol USA , one pair

$246.86

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+++ Matched PAIR Vintage 1974 Tung-Sol 6550 for DYNACO - AT1000 Tested +++
+++ Matched PAIR Vintage 1974 Tung-Sol 6550 for DYNACO - AT1000 Tested +++

$240.00

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6550 Sylvania, Vacuum Tubes, NOS Matched pair, Tested. SALE IS FOR THE PAIR
6550 Sylvania, Vacuum Tubes, NOS Matched pair, Tested. SALE IS FOR THE PAIR

$249.00

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Electro-Harmonix 6550 vacuum tube audio power output tube Pair (2pcs)
Electro-Harmonix 6550 vacuum tube audio power output tube Pair (2pcs)

$168.00

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Brand New Factory Matched QUAD (4) Tung-Sol KT150 KT-150 Vacuum Tubes DHL EXPRES
Brand New Factory Matched QUAD (4) Tung-Sol KT150 KT-150 Vacuum Tubes DHL EXPRES

$899.99

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