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Brand New Matched Quad (4) Genalex Gold Lion Reissue KT88 / 6550 Vacuum Tubes • $368.23
Brand New Matched Quad (4) Genalex Gold Lion Reissue Kt88 / 6550 Vacuum Tubes

368.23$

Groove Tubes Gt 6550 R Match Quad Vacuum Tubes • $90
Groove Tubes Gt 6550 R Match Quad Vacuum Tubes

90$

Auction
New Plate Current Matched Quad (4) Mullard Reissue KT88 / 6550 Vacuum Tubes • $59.99
New Plate Current Matched Quad (4) Mullard Reissue Kt88 / 6550 Vacuum Tubes

59.99$ 1 bids | 5d

Ge 6550 (kt88) Power Vacuum Tube Vintage Marginal Test E.10464.c • $39.95
Ge 6550 (kt88) Power Vacuum Tube Vintage Marginal Test E.10464.c

39.95$

Auction
General Electric 6550 Made In USA Vacuum Power Tube No Reserve • $1
General Electric 6550 Made In Usa Vacuum Power Tube No Reserve

1$ 1 bids | 1d

42%
Strong TungSol 6550 Black Plate Vacuum Tube 1958 Date • $199.99
Strong Tungsol 6550 Black Plate Vacuum Tube 1958 Date

199.99$ 346.24$

6550 RCA Vacuum Tubes 3 Available With Same Gm. US Made. • $120
6550 Rca, Vacuum Tubes, 3 Available With Same Gm. Us Made.

120$

6550 RCA And Sylvania Vacuum Tubes. US Made Tested • $90
6550, Rca And Sylvania Vacuum Tubes. Us Made, Tested

90$

Auction
8 Cary 6550B Vacuum Tube • $275
8 Cary 6550b Vacuum Tube

275$ 0 bids | 6d

Auction
RCA 6550 Vacuum Power Tube Made In USA Testing Strong • $10
Rca 6550 Vacuum Power Tube Made In Usa Testing Strong

10$ 0 bids | 1d

New Svetlana 6550 / 6550C Vacuum Tube • $73.56
New Svetlana 6550 / 6550c Vacuum Tube

73.56$

2 Tubes 6550 KT88 Power Vacuum Tubes Pair • $45
2 Tubes 6550 Kt88 Power Vacuum Tubes Pair

45$

Sovtek 6550WE 6550 Power Vacuum Tube Used • $24.95
Sovtek 6550we 6550 Power Vacuum Tube Used

24.95$

Matched Quad LINLAI KT88-T Perfect T Grade Audio 6550 Vacuum Tube Amp Classic • $254.99
Matched Quad Linlai Kt88-t Perfect T Grade Audio 6550 Vacuum Tube Amp Classic

254.99$

Brand New Matched Octet (8) Genalex Gold Lion Reissue KT88 / 6550 Vacuum Tubes • $720.88
Brand New Matched Octet (8) Genalex Gold Lion Reissue Kt88 / 6550 Vacuum Tubes

720.88$

Matched Pair LINLAI KT88 6550 Perfect HIFI Audio Vacuum Tube Amp Classic Tested • $109
Matched Pair Linlai Kt88 6550 Perfect Hifi Audio Vacuum Tube Amp Classic Tested

109$

19%
Factory Platinum Matched Pair Tung Sol 6550 Tubes Brand New In Box ! • $134.90
Factory Platinum Matched Pair Tung Sol 6550 Tubes, Brand New In Box !

134.90$ 165.80$

Octet Of JJ 6550 Power Vacuum Tube • $455.60
Octet Of Jj 6550 Power Vacuum Tube

455.60$

Tung Sol 6550 Kt88 Nos Nib Black Plates Vacuum Tube • $399.99
Tung Sol 6550 Kt88 Nos Nib Black Plates Vacuum Tube

399.99$

General Electric GE 6550 Vacuum Power Tube Made In USA Testing Strong • $50
General Electric Ge 6550 Vacuum Power Tube Made In Usa Testing Strong

50$

6550 Power Vacuum Tube Set - Tested! • $220
6550 Power Vacuum Tube Set - Tested!

220$

JJ 6550 Power Vacuum Tube • $39.95
Jj 6550 Power Vacuum Tube

39.95$

6550 Sylvania Vacuum Tubes Matched Pair Tested. US Made. SALE IS FOR A PAIR • $240
6550 Sylvania, Vacuum Tubes, Matched Pair, Tested. Us Made. Sale Is For A Pair

240$

General Electric 6550 Made In USA Vacuum Power Tube Testing Strong • $50
General Electric 6550 Made In Usa Vacuum Power Tube Testing Strong

50$

Pair Of Tung-Sol 6550 New Production Power Vacuum Tube • $145.90
Pair Of Tung-sol 6550 New Production Power Vacuum Tube

145.90$

Brand New Plate Current Tested Sovtek 6550WE Vacuum Tube • $75.42
Brand New Plate Current Tested Sovtek 6550we Vacuum Tube

75.42$

Tung-Sol 6550 New Production Power Vacuum Tube • $72.95
Tung-sol 6550 New Production Power Vacuum Tube

72.95$

Quad Of JJ 6550 Power Vacuum Tube • $227.80
Quad Of Jj 6550 Power Vacuum Tube

227.80$

4 X MATCHED KT88 PSVANE HIFI Vacuum Tube Valve Replace 6550 KT88/C Tubes • $199
4 X Matched Kt88 Psvane Hifi Vacuum Tube Valve Replace 6550 Kt88/c Tubes

199$

Philips ECG 6550 Vintage Electronic Output Vacuum Tubes 2 Count • $425
Philips Ecg 6550 Vintage Electronic Output Vacuum Tubes, 2 Count

425$

Jj Electronics 6550 Matched Pair Power Tubes (2 Tubes) New In Box • $169.95
Jj Electronics 6550 Matched Pair Power Tubes (2 Tubes) New In Box

169.95$

Quad Of Sovtek 6550WE Power Vacuum Tube • $271.80
Quad Of Sovtek 6550we Power Vacuum Tube

271.80$

Platinum Matched Pair 6550A KT88 3 Mica 3 Getter Tested Strong (Like NOS) Tube • $98.45
Platinum Matched Pair 6550a Kt88 3 Mica 3 Getter Tested Strong (like Nos) Tube

98.45$

Factory Platinum Matched Quad Svetlana 6550 6550C Tubes BRAND NEW In Box ! • $257.17
Factory Platinum Matched Quad Svetlana 6550 6550c Tubes, Brand New In Box !

257.17$

Vintage Genalex KT88 KT-88 6550 U.K. Vacuum Tube - Hickok TV-7 Tested • $100
Vintage Genalex Kt88 Kt-88 6550 U.k. Vacuum Tube - Hickok Tv-7 Tested

100$

Octet Of Electro-Harmonix 6550 EH Power Vacuum Tube • $543.60
Octet Of Electro-harmonix 6550 Eh Power Vacuum Tube

543.60$

Sextet Of JJ 6550 Power Vacuum Tube • $341.70
Sextet Of Jj 6550 Power Vacuum Tube

341.70$

Svetlana OTK 6550B-2 Vacuum Tube • $50
Svetlana Otk 6550b-2 Vacuum Tube

50$

Brand New Current Tested Electro-Harmonix 6550 Vacuum Tube • $71.97
Brand New Current Tested Electro-harmonix 6550 Vacuum Tube

71.97$

10%
Vacuum Tube Tung-Sol KT88 6550 Coke Bottle Made USA Tests Strong Dyna Jet 606 P4 • $143.10
Vacuum Tube Tung-sol Kt88 6550 Coke Bottle Made Usa Tests Strong Dyna Jet 606 P4

143.10$ 159$

NOS NIB TungSol 6550 Vacuum Tube Branded For RCA • $174.99
Nos Nib Tungsol 6550 Vacuum Tube Branded For Rca

174.99$

Pair Of JJ 6550 Power Vacuum Tube • $113.90
Pair Of Jj 6550 Power Vacuum Tube

113.90$

General Electric 6550 Made In USA Vacuum Power Tube Testing Strong • $75
General Electric 6550 Made In Usa Vacuum Power Tube Testing Strong

75$

Strong TungSol 6550 Solid Gray Plate Vacuum Tube • $129.99
Strong Tungsol 6550 Solid Gray Plate Vacuum Tube

129.99$

(2) BOGEN & RCA 6550 Vacuum Tubes Black Plate • $200
(2) Bogen & Rca 6550 Vacuum Tubes Black Plate

200$

Sovtek 6550WE Power Vacuum Tube • $39.95
Sovtek 6550we Power Vacuum Tube

39.95$

Brand New Svetlana 6550 / 6550C (KT88) Reissue Vacuum Tube 90 Day Warranty SH • $68.93
Brand New Svetlana 6550 / 6550c (kt88) Reissue Vacuum Tube 90 Day Warranty Sh

68.93$

GE 6550A Vintage 1985 NOS Gray Plate Vacuum Tube (excellent Testing Scores) • $195
Ge 6550a Vintage 1985 Nos Gray Plate Vacuum Tube (excellent Testing Scores)

195$

Hammond Leslie 122 6550 Made In USA Vacuum Power Tube Testing Strong • $50
Hammond Leslie 122 6550 Made In Usa Vacuum Power Tube Testing Strong

50$

Brand New Matched Quad (4) Genalex Gold Lion Reissue KT88 / 6550 Vacuum Tubes • $361.99
Brand New Matched Quad (4) Genalex Gold Lion Reissue Kt88 / 6550 Vacuum Tubes

361.99$

40%
Early Tungsol 6550 KT88 Vacuum Tube - Tested Strong • $179.99
Early Tungsol 6550 Kt88 Vacuum Tube - Tested Strong

179.99$ 299.99$

Brand New In Box Genalex Gold Lion Reissue KT88 / 6550 Vacuum Tube - Guaranteed • $91.65
Brand New In Box Genalex Gold Lion Reissue Kt88 / 6550 Vacuum Tube - Guaranteed

91.65$

Lot Of 5 Genalex KT88 Gold Lion Vacuum Tubes • $110
Lot Of 5 Genalex Kt88 Gold Lion Vacuum Tubes

110$

Pair Rca 6550 Power Vacuum Tubes Tested Nos! Vintage Dual Disc Getters E.10465.c • $299.95
Pair Rca 6550 Power Vacuum Tubes Tested Nos! Vintage Dual Disc Getters E.10465.c

299.95$

Ruby 6550 ASTR NOS Vacuum Tube • $49.95
Ruby 6550 Astr Nos Vacuum Tube

49.95$

Matched Quad PSVANE KT88-T Mark II Classic Grade Tubes Replace CV5220 6550 KT88 • $339
Matched Quad Psvane Kt88-t Mark Ii Classic Grade Tubes Replace Cv5220 6550 Kt88

339$

GE 6550 Vintage 1985 NOS Gray Plate Vacuum Tube (excellent Testing Scores) • $140
Ge 6550 Vintage 1985 Nos Gray Plate Vacuum Tube (excellent Testing Scores)

140$

Lot Of 3 Vintage Ruby Vacuum Tube 6550A-R Made In Russia Open Box Untested • $149.99
Lot Of 3 Vintage Ruby Vacuum Tube 6550a-r Made In Russia Open Box Untested

149.99$

4 Vacuum Tube Higher Temp Dampers For 6550/6l6/6l6gc/5u4/5881/2a3/kt90 • $19.99
4 Vacuum Tube Higher Temp Dampers For 6550/6l6/6l6gc/5u4/5881/2a3/kt90

19.99$

Pair Of Electro-Harmonix 6550 EH Power Vacuum Tube • $135.90
Pair Of Electro-harmonix 6550 Eh Power Vacuum Tube

135.90$

Vintage RAM Labs KT88 6550 Vacuum Tubes Matched Pair AT1000 Tested 125% GM • $175
Vintage Ram Labs Kt88 6550 Vacuum Tubes Matched Pair At1000 Tested 125% Gm

175$

10%
Matched Quad LINLAI KT88-D Perfect Titanium Screen D-Series Vacuum Tube Amp 6550 • $285.29
Matched Quad Linlai Kt88-d Perfect Titanium Screen D-series Vacuum Tube Amp 6550

285.29$ 316.99$

10 Brand New White Vacuum Tube Boxes - Large Octal - 6550A 6L6GA Type 45 ST • $9.99
10 Brand New White Vacuum Tube Boxes - Large Octal - 6550a 6l6ga Type 45 St

9.99$

Vintage Rca 6550 Big Bottle Vacuum Tube - Ooo Getter! - Tv7 Tested • $65
Vintage Rca 6550 Big Bottle Vacuum Tube - Ooo Getter! - Tv7 Tested

65$

11%
EL34 KT88 6550 6SN7 6L6 6CA7 5U4G 6V6 5Z3 274B 6F8G Tube 8Pin Octal Socket Saver • $8.45
El34 Kt88 6550 6sn7 6l6 6ca7 5u4g 6v6 5z3 274b 6f8g Tube 8pin Octal Socket Saver

8.45$ 9.49$

Electro-Harmonix 6550EH 6550 Vacuum Tube • $49.99
Electro-harmonix 6550eh 6550 Vacuum Tube

49.99$

US 10Pcs 8Pin Octal Vacuum Tube Socket For EL34 6V6 KT88 6550 GZ34 Chassis Mount • $21.39
Us 10pcs 8pin Octal Vacuum Tube Socket For El34 6v6 Kt88 6550 Gz34 Chassis Mount

21.39$

EMPTY WHITE VACUUM TUBE BOXES Extra Large Octal 6550 Or G Series & Similar • $29.95
Empty White Vacuum Tube Boxes Extra Large Octal 6550 Or "g" Series & Similar

29.95$

Auction
4 NOS GE General Electric USA National Gold 6550A 6550 Vacuum Tubes Matched • $588.88
4 Nos Ge General Electric Usa National Gold 6550a 6550 Vacuum Tubes Matched

588.88$ 0 bids | 2d

Groove Tubes Gt6550r Vacuum Electron Power Tubes Nos Quartet Factory Matched New • $229
Groove Tubes Gt6550r Vacuum Electron Power Tubes Nos Quartet Factory Matched New

229$

Rare Bottle Vintage RAM Labs USA Manufacture 6550 Vacuum Tube. Nos Matched Pair • $199
Rare Bottle Vintage Ram Labs Usa Manufacture 6550 Vacuum Tube. Nos Matched Pair

199$

JJ 6550 Power Vacuum Tube • $56.95
Jj 6550 Power Vacuum Tube

56.95$

Auction
2 NOS GE General Electric USA National Gold 6550A 6550 Vacuum Tubes Matched #2 • $288.88
2 Nos Ge General Electric Usa National Gold 6550a 6550 Vacuum Tubes Matched #2

288.88$ 0 bids | 2d

New Plate Current Matched Quad (4) Mullard Reissue KT88 / 6550 Vacuum Tubes • $299.35
New Plate Current Matched Quad (4) Mullard Reissue Kt88 / 6550 Vacuum Tubes

299.35$

Auction
6 NOS GE General Electric USA National Gold 6550A 6550 Vacuum Tubes Matched • $888.88
6 Nos Ge General Electric Usa National Gold 6550a 6550 Vacuum Tubes Matched

888.88$ 0 bids | 2d

1 New Matched Pair PSVANE UK KT88 Audio Valve Vacuum Tube /6550/KT120 • $118.99
1 New Matched Pair Psvane Uk Kt88 Audio Valve Vacuum Tube /6550/kt120

118.99$

8%
2pcs Matched PSVANE KT88-Z TREASURE Collector Edition Vacuum Tubes 6550 KT100 • $133.40
2pcs Matched Psvane Kt88-z Treasure Collector Edition Vacuum Tubes 6550 Kt100

133.40$ 145$

New Plate Current Matched Quad (4) Tung-Sol Reissue 6550 KT88 Coke Bottle Tubes • $298.34
New Plate Current Matched Quad (4) Tung-sol Reissue 6550 Kt88 Coke Bottle Tubes

298.34$

Philips ECG 6550 Vacuum Tube Amplitrex Tested 116% Gm • $70
Philips Ecg 6550 Vacuum Tube Amplitrex Tested 116% Gm

70$

30%
Strong 6550 Tube - 100 • $69.99
Strong 6550 Tube - 100

69.99$ 99.99$

2PCS 807 FU7 5933 To 6L6 KT88 EL34 5881 6550 Vacuum Tube Adapter Converter • $29.99
2pcs 807 Fu7 5933 To 6l6 Kt88 El34 5881 6550 Vacuum Tube Adapter Converter

29.99$

1ea. MATCHED PAIR SVETLANA 6550C POWER VACUUM TUBES BRAND NEW IN BOX • $239.95
1ea. Matched Pair Svetlana 6550c Power Vacuum Tubes Brand New In Box

239.95$

Audio Nobsound Vacuum Tube Amp Amplifier Plate Bias Current Probe Tester 8 Pin S • $23.40
Audio Nobsound Vacuum Tube Amp Amplifier Plate Bias Current Probe Tester 8 Pin S

23.40$

SYLVANIA 6550 KT-88 MATCHED POWER TUBE PAIR V1 TIGHT 1% NOS NIB *eTRACER* • $449.99
Sylvania 6550 Kt-88 Matched Power Tube Pair V1 Tight 1% Nos Nib *etracer*

449.99$

Vintage GE General Electric 6550 Tubes Pair X2 Tube Maxi Tested • $199.99
Vintage Ge General Electric 6550 Tubes Pair X2 Tube Maxi Tested

199.99$

General Electric 6550 Tube / Checked Grid Leakage / Emission Test • $80
General Electric 6550 Tube / Checked Grid Leakage / Emission Test

80$

Auction
2 NOS GE General Electric USA National Gold 6550A 6550 Vacuum Tubes Matched • $288.88
2 Nos Ge General Electric Usa National Gold 6550a 6550 Vacuum Tubes Matched

288.88$ 0 bids | 2d

Valve Art Vacuum Tube 6550A O & J Enterprises NOS • $49.95
Valve Art Vacuum Tube 6550a O & J Enterprises Nos

49.95$

7%
1 Matched Pair PSVANE KT88-Z TREASURE Collector Edition Vacuum Tubes 6550 KT100 • $134.85
1 Matched Pair Psvane Kt88-z Treasure Collector Edition Vacuum Tubes 6550 Kt100

134.85$ 145$

TELEFUNKEN 6550-TK Black Diamond Series Vacuum Tube • $120.95
Telefunken 6550-tk Black Diamond Series Vacuum Tube

120.95$

Electro-Harmonix 6550 EH Power Vacuum Tube • $67.95
Electro-harmonix 6550 Eh Power Vacuum Tube

67.95$

Shuguang Treasure KT88-Z Vacuum Tubes Matched Pair Replace KT88 CV5220 6550 • $169.99
Shuguang Treasure Kt88-z Vacuum Tubes Matched Pair Replace Kt88 Cv5220 6550

169.99$

2Pcs 8Pin Gold Ceramic Vacuum Tube Socket Octal Valve Base Fr EL34 KT88 6550 6V6 • $7.99
2pcs 8pin Gold Ceramic Vacuum Tube Socket Octal Valve Base Fr El34 Kt88 6550 6v6

7.99$

8%
1PC Shuguang 6550A-98 Vacuum Tube Replace KT88-98 6550B KT100 • $39.55
1pc Shuguang 6550a-98 Vacuum Tube Replace Kt88-98 6550b Kt100

39.55$ 42.99$

Sovtek 6550WE Power Vacuum Tube • $50
Sovtek 6550we Power Vacuum Tube

50$

Lot 0f (7) 6350 Vacuum Tubes -Various Brands Black Plates / Very Strong And Bal • $29.99
Lot 0f (7) 6350 Vacuum Tubes -various Brands Black Plates / Very Strong And Bal

29.99$

KT88 6550 / Matched Pair / LINLAI / Perfect HIFI Audio / Vacuum Tube Amp Classic • $87.66
Kt88 6550 / Matched Pair / Linlai / Perfect Hifi Audio / Vacuum Tube Amp Classic

87.66$

Closely Matched Pair Electro-Harmonix KT88 6550 NOS NIB Same Date Tested Tube • $158.45
Closely Matched Pair Electro-harmonix Kt88 6550 Nos Nib Same Date Tested Tube

158.45$

2PC 807 FU7 5933 To 6L6 KT88 EL34 5881 6550 Vacuum Tube Adapter Converter • $29.98
2pc 807 Fu7 5933 To 6l6 Kt88 El34 5881 6550 Vacuum Tube Adapter Converter

29.98$

2pcs ShuGuang KT88 -98 Vacuum Valve Tube 6550 Amplifier Matched Pair New Version • $87.77
2pcs Shuguang Kt88 -98 Vacuum Valve Tube 6550 Amplifier Matched Pair New Version

87.77$

    • Brand
    • Psvane48
    • Electro-Harmonix39
    • Shuguang35
    • Tung-Sol29
    • Sovtek26
    • Genalex25
    • Svetlana21
    • GE21
    • Mullard15
    • JJ Electronic12
    • RCA9
    • SYLVANIA7
    • Groove Tubes7
    • McIntosh5
    • Philips3
    • Ruby3
    • TELEFUNKEN2
    • International Servicemaster2
    • Marconi2
    • RAM2
    • Amperex1
    • EI1
    • Hammond1
    • Quad1
    • Sophia Electric1
    • Type
    • Vacuum Tube438
    • Tube Socket119
    • Power Tubes17
    • Electron Tube17
    • NOS Tube5
    • Triode3
    • Preamp Tubes1