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$50 • Buy Sovtek 6550 WE Vacuum Tube Unused 
Sovtek 6550 We Vacuum Tube Unused 

50$

$258.95 • Buy NIB Matched Pair 2 Genalex Gold Lion Reissue KT88 / 6550 / 6L6 Vacuum Tubes 🎼
Nib Matched Pair 2 Genalex Gold Lion Reissue Kt88 / 6550 / 6l6 Vacuum Tubes 🎼

258.95$

$69.99 • Buy NOS Svetlana 6550 / 6550C Vacuum Tube Tested
Nos Svetlana 6550 / 6550c Vacuum Tube Tested

69.99$

$80 • Buy Phillips 6550 Vacuum Tube Tests Nos 
Phillips 6550 Vacuum Tube Tests Nos 

80$

$100 • Buy Sylvania Dual 0-0 Side Getter 6550 Vacuum Tube Amplitrex Tested 104% Gm
Sylvania Dual 0-0 Side Getter 6550 Vacuum Tube Amplitrex Tested 104% Gm

100$

Auction
$20.50 • Buy 8975 Huge Lot Of Misc Brands 26hu5 431 6dn6 40b2 6550b Vacuum Tubes
8975 Huge Lot Of Misc Brands 26hu5 431 6dn6 40b2 6550b Vacuum Tubes

20.50$ 2 bids | 2d

Auction
$40 • Buy Pair (2) Sovtek KT88 (6550) Vacuum Tubes
Pair (2) Sovtek Kt88 (6550) Vacuum Tubes

40$ 0 bids | 2d

Auction
$35 • Buy Sovtek 6550 WE Vacuum Tube Tests Good
Sovtek 6550 We Vacuum Tube Tests Good

35$ 0 bids | 6d

Auction
$240 • Buy Lot 4 Vintage RCA 6550A Vacuum Tubes Audio 274 N-S Please Read
Lot 4 Vintage Rca 6550a Vacuum Tubes Audio 274 N-s Please Read

240$ 0 bids | 0d

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

21.39$

Auction
$85.99 • Buy 6550C Svetlana SEC Winged C Audio Receiver Power Vacuum Tubes Match Tested Pair
6550c Svetlana Sec Winged C Audio Receiver Power Vacuum Tubes Match Tested Pair

85.99$ 0 bids | 5d

$48 • Buy 8 Pin Octal Vacuum TUBE SOCKETS LOT Vintage AMPHENOL USA 5ar4 7591 6550
8 Pin Octal Vacuum Tube Sockets Lot Vintage Amphenol Usa 5ar4 7591 6550

48$

$400 • Buy Pair Of Tung-Sol (Raytheon Label) 6550 NOS NIB Solid Plate Vacuum Tubes
Pair Of Tung-sol (raytheon Label) 6550 Nos Nib Solid Plate Vacuum Tubes

400$

$660.50 • Buy Brand New Matched QUAD (4) Genalex Gold Lion Reissue KT88 / 6550 Vacuum Tubes
Brand New Matched Quad (4) Genalex Gold Lion Reissue Kt88 / 6550 Vacuum Tubes

660.50$

$140 • Buy 2 Matched Svetlana SED Winged C 6550C Tubes =C= TV7u Tested Strong
2 Matched Svetlana Sed Winged C 6550c Tubes =c= Tv7u Tested Strong

140$

$499.99 • Buy 6550 Tung Sol Vacuum Tube 4 Set
6550 Tung Sol Vacuum Tube 4 Set

499.99$

$79.99 • Buy 2PCS Shuguang 6550A-98 Matched Pair Vacuum Tube Replace KT88-98 6550B KT100
2pcs Shuguang 6550a-98 Matched Pair Vacuum Tube Replace Kt88-98 6550b Kt100

79.99$

$29.95 • Buy QTY 25 - EMPTY WHITE VACUUM TUBE BOXES - 01a 71a 45 6550a 6L6GT 6080 & Similar
Qty 25 - Empty White Vacuum Tube Boxes - 01a 71a 45 6550a 6l6gt 6080 & Similar

29.95$

17%
$8.11 • Buy Vacuum Tube Adapter Converter 807 FU7 5933 To 6L6 KT88 EL34 5881 KT66 6550 AMP
Vacuum Tube Adapter Converter 807 Fu7 5933 To 6l6 Kt88 El34 5881 Kt66 6550 Amp

8.11$ 9.77$

Auction
$1 • Buy 6550 Metal Base China Vacuum Power Tube Tested New No Reserve
6550 Metal Base China Vacuum Power Tube Tested New No Reserve

1$ 0 bids | 1d

$199.99 • Buy Strong Matched Pair TungSol 6550 Vacuum Tubes
Strong Matched Pair Tungsol 6550 Vacuum Tubes

199.99$

$49.99 • Buy RUBY 6550A-STR 6550ASTR VACUUM TUBES, MATCHED Guitar
Ruby 6550a-str 6550astr Vacuum Tubes, Matched Guitar

49.99$

$261.90 • Buy New 4x 6550 JJ Electronic Valve Vacuum Power Tubes Factory Matched Quad
New 4x 6550 Jj Electronic Valve Vacuum Power Tubes Factory Matched Quad

261.90$

$17.99 • Buy 1 Excellent Sounding But Test Low GE 6550A / 6550 Tube #DN97
1 Excellent Sounding But Test Low Ge 6550a / 6550 Tube #dn97

17.99$

$8.36 • Buy 4Pcs 8 Pin Ceramic Socket Tube Top Vacuum Octal Value For KT88 6550 EL34 NTA-$j
4pcs 8 Pin Ceramic Socket Tube Top Vacuum Octal Value For Kt88 6550 El34 Nta-$j

8.36$

$39.99 • Buy Sovtek Tubes 6550 WE Vacuum Tube Tests Good
Sovtek Tubes 6550 We Vacuum Tube Tests Good

39.99$

$40 • Buy Sovtek 6550WA 6550 Vacuum Tube Made In Russia Tested Good Clean
Sovtek 6550wa 6550 Vacuum Tube Made In Russia Tested Good Clean

40$

$17.99 • Buy 1 Excellent Strong Chinese Black Plate 6550 Tube #DO11
1 Excellent Strong Chinese Black Plate 6550 Tube #do11

17.99$

$499.95 • Buy Factory Platinum Matched Quad Svetlana 6550 6550C Tubes, BRAND NEW In Box !
Factory Platinum Matched Quad Svetlana 6550 6550c Tubes, Brand New In Box !

499.95$

$237.38 • Buy Brand New Plate Current Matched Pair (2) Sovtek 6550WE Vacuum Tubes
Brand New Plate Current Matched Pair (2) Sovtek 6550we Vacuum Tubes

237.38$

$85.48 • Buy Brand New Current Tested Electro-Harmonix 6550 Vacuum Tube
Brand New Current Tested Electro-harmonix 6550 Vacuum Tube

85.48$

$190.24 • Buy KT88C Vacuum Tube Valve 4PCS Psvane Amplifier Replace 6550 KT88 Electronic Tube
Kt88c Vacuum Tube Valve 4pcs Psvane Amplifier Replace 6550 Kt88 Electronic Tube

190.24$

$16.90 • Buy 25 Brand New White Vacuum Tube Boxes - Large Octal - 6550A 6L6GA Type 45 ST
25 Brand New White Vacuum Tube Boxes - Large Octal - 6550a 6l6ga Type 45 St

16.90$

$95 • Buy 2 Tubes 6550 KT88 Power Vacuum Tubes Pair
2 Tubes 6550 Kt88 Power Vacuum Tubes Pair

95$

$40 • Buy Svetlana 6550B-2 6550 Vacuum Tube Made In Russia Tested Used Good
Svetlana 6550b-2 6550 Vacuum Tube Made In Russia Tested Used Good

40$

$249.95 • Buy Jj Electronics 6550 Matched Quad Power Tubes (4 Tubes) New In Box
Jj Electronics 6550 Matched Quad Power Tubes (4 Tubes) New In Box

249.95$

17%
$66.21 • Buy 6L6 EL34 5881 KT88 KT66 6V6 KT120 6550 Amptata V8 Tube Tester Bias Current MA
6l6 El34 5881 Kt88 Kt66 6v6 Kt120 6550 Amptata V8 Tube Tester Bias Current Ma

66.21$ 79.77$

6%
$65.79 • Buy Audio Classics 6550 New Stock Vacuum Tube - Audio Amplifier Tube
Audio Classics 6550 New Stock Vacuum Tube - Audio Amplifier Tube

65.79$ 69.99$

$253.27 • Buy 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

253.27$

$649 • Buy GE 6550 / 6550A Vacuum Tube 2 PAIR Set
Ge 6550 / 6550a Vacuum Tube 2 Pair Set

649$

$8.99 • Buy Pair NOS Cinch Octal Vacuum Tube Sockets For 6L6GC, 6550, EL34, KT66, 6V6GT, Etc
Pair Nos Cinch Octal Vacuum Tube Sockets For 6l6gc, 6550, El34, Kt66, 6v6gt, Etc

8.99$

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

49.95$

$35.89 • Buy 8Pin Octal Vacuum Tube Socket For EL34 6V6 KT88 6550 GZ34 Chassis Mount 20pcs
8pin Octal Vacuum Tube Socket For El34 6v6 Kt88 6550 Gz34 Chassis Mount 20pcs

35.89$

$408.95 • Buy Two, NEW, Tung Sol USA 6550, Solid Plate, Early 1960's, Match Pair, KT-88 Eq
Two, New, Tung Sol Usa 6550, Solid Plate, Early 1960's, Match Pair, Kt-88 Eq

408.95$

25%
$284.25 • Buy Genalex Gold Lion KT88 / 6550 Audio Tube Tested UK Original Vintage
Genalex Gold Lion Kt88 / 6550 Audio Tube Tested Uk Original Vintage

284.25$ 379$

$60.76 • Buy 2PCS Shuguang 6550A-98 Matched Pair Vacuum Tube Replace KT88-98 6550B KT100
2pcs Shuguang 6550a-98 Matched Pair Vacuum Tube Replace Kt88-98 6550b Kt100

60.76$

$125 • Buy GE JAN 6550A Tube Amplitrex AT1000 Tested Strong 93% Emissions 91%Gm
Ge Jan 6550a Tube Amplitrex At1000 Tested Strong 93% Emissions 91%gm

125$

25%
$44.99 • Buy Strong SVETLANA 6550 Tube - 104
Strong Svetlana 6550 Tube - 104

44.99$ 59.99$

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

169.95$

$14.99 • Buy 8 Pin Octal Tube Socket PCB Mount EL34 6CA7 6L6 KT88 GZ34 6V6 274B 10 PCS
8 Pin Octal Tube Socket Pcb Mount El34 6ca7 6l6 Kt88 Gz34 6v6 274b 10 Pcs

14.99$

$3.35 • Buy 10 Brand New White Vacuum Tube Boxes - Large Octal - 6550A 6L6GA Type 45 ST
10 Brand New White Vacuum Tube Boxes - Large Octal - 6550a 6l6ga Type 45 St

3.35$

5%
$91.19 • Buy Matched Pair LINLAI KT88 6550 Perfect HIFI Audio Vacuum Tube Amp Classic Tested
Matched Pair Linlai Kt88 6550 Perfect Hifi Audio Vacuum Tube Amp Classic Tested

91.19$ 95.99$

$95 • Buy GE - General Electric Vacuum Tube / 6550A / TV7U Very Strong
Ge - General Electric Vacuum Tube / 6550a / Tv7u Very Strong

95$

$115 • Buy NOS/NIB GE 6550A Rebranded RCA—Tests Strong!
Nos/nib Ge 6550a Rebranded Rca—tests Strong!

115$

17%
$12.17 • Buy HIFI 807 FU7 5933 To 6L6 KT88 EL34 5881 6CA7 6550 Vacuum Tube Adapter Converter
Hifi 807 Fu7 5933 To 6l6 Kt88 El34 5881 6ca7 6550 Vacuum Tube Adapter Converter

12.17$ 14.66$

$185 • Buy 4pcs Matched Quad PSVANE KT88C Vacuum Tube Replace Shuguang KT88 CV5220 6550
4pcs Matched Quad Psvane Kt88c Vacuum Tube Replace Shuguang Kt88 Cv5220 6550

185$

$148.90 • Buy New 2x 6550 JJ Electronic Valve Vacuum Power Tubes Factory Matched Quad
New 2x 6550 Jj Electronic Valve Vacuum Power Tubes Factory Matched Quad

148.90$

$499 • Buy 1 Genelax Early Type Kt88 Audio Tube Top O Getters Made In England / 6550
1 Genelax Early Type Kt88 Audio Tube Top O Getters Made In England / 6550

499$

5%
$181.44 • Buy Matched Quad LINLAI KT88 6550 Perfect HIFI Audio Vacuum Tube Amp Classic Tested
Matched Quad Linlai Kt88 6550 Perfect Hifi Audio Vacuum Tube Amp Classic Tested

181.44$ 190.99$

$550 • Buy GE 6550A Vacuum Tubes Factory Matched In Box Excellent Matched Pair 'RARE -FT121
Ge 6550a Vacuum Tubes Factory Matched In Box Excellent Matched Pair 'rare -ft121

550$

$299 • Buy 1pcs - GE 6550 / 6550A Tested Vacuum Tube - NOS NIB
1pcs - Ge 6550 / 6550a Tested Vacuum Tube - Nos Nib

299$

17%
$7.28 • Buy EL34 KT88 6550 6SN7 6L6 6CA7 5U4G 6V6 5Z3 274B 6F8G Tube 8Pin Octal Socket Saver
El34 Kt88 6550 6sn7 6l6 6ca7 5u4g 6v6 5z3 274b 6f8g Tube 8pin Octal Socket Saver

7.28$ 8.77$

$145 • Buy 1pc Shuguang WEKT88 Vacuum Tube Replace 6550 KT88 Western Electric Replica DIY
1pc Shuguang Wekt88 Vacuum Tube Replace 6550 Kt88 Western Electric Replica Diy

145$

15%
$67.99 • Buy Amptata V8 Tube Tester Bias Current EL34 KT88 6L6 6V6 5881 6550 KT66 KT100 MA
Amptata V8 Tube Tester Bias Current El34 Kt88 6l6 6v6 5881 6550 Kt66 Kt100 Ma

67.99$ 79.99$

$35.99 • Buy 8Pin Octal Vacuum Tube Socket For EL34 6V6 KT88 6550 GZ34 Chassis Mount Lot*20
8pin Octal Vacuum Tube Socket For El34 6v6 Kt88 6550 Gz34 Chassis Mount Lot*20

35.99$

25%
$74.99 • Buy Strong 6550 Tube - 100
Strong 6550 Tube - 100

74.99$ 99.99$

$190 • Buy Lot Of 2 - Sylvania - 6550 - Vacuum Tubes - Tested
Lot Of 2 - Sylvania - 6550 - Vacuum Tubes - Tested

190$

$89.99 • Buy 1pair Psvane HiFi KT88 Vacuum Tube Electronic Valve Fr KT88 6550 Audio Amplifier
1pair Psvane Hifi Kt88 Vacuum Tube Electronic Valve Fr Kt88 6550 Audio Amplifier

89.99$

$472.52 • Buy Brand New Plate Current Matched Quad (4) Sovtek 6550WE Vacuum Tubes
Brand New Plate Current Matched Quad (4) Sovtek 6550we Vacuum Tubes

472.52$

5%
$91.01 • Buy 1 Matched Pair PSVANE KT88 HiFi Series Vacuum Tubes 6550
1 Matched Pair Psvane Kt88 Hifi Series Vacuum Tubes 6550

91.01$ 95.80$

$310 • Buy Factory Platinum Matched Quad Sovtek 6550WE - For Audio Research, Dynaco, CJ
Factory Platinum Matched Quad Sovtek 6550we - For Audio Research, Dynaco, Cj

310$

$230 • Buy Svetlana 6550C Vacuum Tube Matched Pair In Excellent Working Condition
Svetlana 6550c Vacuum Tube Matched Pair In Excellent Working Condition

230$

$17.99 • Buy 8 Pin Octal Tube Socket Chassis Mount EL34 6CA7 6L6 KT88 GZ34 6V6 12 PCS
8 Pin Octal Tube Socket Chassis Mount El34 6ca7 6l6 Kt88 Gz34 6v6 12 Pcs

17.99$

$313.91 • Buy 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

313.91$

$399.99 • Buy 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

399.99$

$21.55 • Buy 10pcs For EL34 6V6 KT88 6550 GZ34 Chassis Mount 8Pin Octal Vacuum Tube Socket
10pcs For El34 6v6 Kt88 6550 Gz34 Chassis Mount 8pin Octal Vacuum Tube Socket

21.55$

$36.81 • Buy 50 Brand New White Vacuum Tube Boxes - Large Octal - 6550A 6L6GA Type 45 ST
50 Brand New White Vacuum Tube Boxes - Large Octal - 6550a 6l6ga Type 45 St

36.81$

$759 • Buy GE 6550A Vacuum Tube Set Of 4
Ge 6550a Vacuum Tube Set Of 4

759$

$1350 • Buy Gec Kt88 6550 Quadral Tubes Set Gec Kt88 6550 Matched Tubes Set
Gec Kt88 6550 Quadral Tubes Set Gec Kt88 6550 Matched Tubes Set

1,350$

$7.29 • Buy 8pin Ceramic Vacuum Tube Socket Octal For EL34 KT88 6550 6SN7 6L6G Audio
8pin Ceramic Vacuum Tube Socket Octal For El34 Kt88 6550 6sn7 6l6g Audio

7.29$

28%
$12.88 • Buy 5pc 8PIN Vacuum TUBE SOCKET FOR KT88 6550 EL34B AUDIO Tube Amp DIY Parts
5pc 8pin Vacuum Tube Socket For Kt88 6550 El34b Audio Tube Amp Diy Parts

12.88$ 17.89$

$159.99 • Buy Matched Pair Of Audio Classics 6550 Stock Vacuum Tubes (bjr1011)
Matched Pair Of Audio Classics 6550 Stock Vacuum Tubes (bjr1011)

159.99$

$17.99 • Buy 1 Excellent Strong Chinese Black Plate 6550 Tube #DO12
1 Excellent Strong Chinese Black Plate 6550 Tube #do12

17.99$

$99.99 • Buy Fender Sovtek (Russia) 6550WE Vacuum Tube NOS
Fender Sovtek (russia) 6550we Vacuum Tube Nos

99.99$

15%
$11.04 • Buy 8Pin Octal Socket Saver EL34 KT88 6550 6SN7 6L6 6CA7 5U4G 5Z3 274B 6F8G Black
8pin Octal Socket Saver El34 Kt88 6550 6sn7 6l6 6ca7 5u4g 5z3 274b 6f8g Black

11.04$ 12.99$

$100 • Buy (1) Tung-Sol 6550 Tube Made In Russia
(1) Tung-sol 6550 Tube Made In Russia

100$

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

7.99$

Auction
$199 • Buy Pair Of N.O S GE 6550A KT88 Vaccum Tubes NIB In Boxes.
Pair Of N.o S Ge 6550a Kt88 Vaccum Tubes Nib In Boxes.

199$ 0 bids | 4d

$65.61 • Buy 100 Brand New White Vacuum Tube Boxes - Large Octal - 6550A 6L6GA Type 45 ST
100 Brand New White Vacuum Tube Boxes - Large Octal - 6550a 6l6ga Type 45 St

65.61$

$7.99 • Buy 8 Pin Round Black Octal Chassis Mount Vacuum Tube Socket New El34 Kt88 6550
8 Pin Round Black Octal Chassis Mount Vacuum Tube Socket New El34 Kt88 6550

7.99$

$299 • Buy Two Pairs 6550 Factory Matched Groove Tubes GT-6550C || Curve Tracer Tested
Two Pairs 6550 Factory Matched Groove Tubes Gt-6550c || Curve Tracer Tested

299$

$8.06 • Buy 4Pcs 8 Pin Ceramic Socket Tube Top Vacuum Octal Value For KT88 6550 EL34 A^IT
4pcs 8 Pin Ceramic Socket Tube Top Vacuum Octal Value For Kt88 6550 El34 A^it

8.06$

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

339$

$99 • Buy 2pcs Matched Pair PSVANE KT88C Vacuum Tube Replace Shuguang KT88 CV5220 6550
2pcs Matched Pair Psvane Kt88c Vacuum Tube Replace Shuguang Kt88 Cv5220 6550

99$

$2499.99 • Buy Octect Rca 6550 Audio Amplifier Tube
Octect Rca 6550 Audio Amplifier Tube

2,499.99$

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

199$

$36.05 • Buy 20x 8Pin Octal Vacuum Tube Socket For EL34 6V6 KT88 6550 GZ34 Chassis Mount USA
20x 8pin Octal Vacuum Tube Socket For El34 6v6 Kt88 6550 Gz34 Chassis Mount Usa

36.05$

15%
$11.89 • Buy 8Pin Octal Socket Saver EL34 KT88 6550 6SN7 6L6 6CA7 5U4G 5Z3 274B 6F8G Golden
8pin Octal Socket Saver El34 Kt88 6550 6sn7 6l6 6ca7 5u4g 5z3 274b 6f8g Golden

11.89$ 13.99$

$94.05 • Buy Vacuum Tube KT88C 2PCS PSVANE Valve Replace 6550 KT88 HIFI DIY Audio Vintage AMP
Vacuum Tube Kt88c 2pcs Psvane Valve Replace 6550 Kt88 Hifi Diy Audio Vintage Amp

94.05$

$1002.07 • Buy Brand New Plate Current Matched Octet (8) Svetlana KT88-SV Gold Grid Tubes
Brand New Plate Current Matched Octet (8) Svetlana Kt88-sv Gold Grid Tubes

1,002.07$

    • Brand
    • GE14
    • Psvane14
    • Sovtek11
    • Svetlana11
    • Tung-Sol10
    • Mullard5
    • Genalex5
    • Shuguang5
    • JJ Electronic4
    • Valve4
    • Ruby2
    • SYLVANIA2
    • RCA2
    • Electro-Harmonix2
    • RAM1
    • Philips1
    • Groove Tubes1
    • Soviet1
    • SED1
    • Type
    • Vacuum Tube165
    • Tube Socket96
    • Electron Tube4
    • Power Tubes2
    • NOS Tube1