6SN7

July 6, 2008 | Leave a Comment

The 6SN7 tube is a medium-mu twin triode in an octal based package, usually glass, although some metal envelope types were made. In normal use it operates as a class A amplifier. It was widely used in the early days of television as the vertical amplifier, and it's use was so common in most TV chassis designs that vintage 6SN7 tubes are still fairly easy to find today. Audio designers soon found it made a great audio preamp with it's large plates, ample power reserve, and low microphonic octal package. The GTA and GTB types, having been fine tuned for demands in television chassis vertical sweep circuits, can handle up to 7 watts maximum plate power!




Psvane ShuGuang 12AX7 12AU7 12AT7 EL84 300B 6SN7 6SL7 2A3C CV181 KT88 KT66 6CA7
Psvane ShuGuang 12AX7 12AU7 12AT7 EL84 300B 6SN7 6SL7 2A3C CV181 KT88 KT66 6CA7
$68.90
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10PCS KT88 EL34 5AR4 6SN7 6SL7 KT66 5881 Bakelite 8Pin K8A Vacuum Tube Socket
10PCS KT88 EL34 5AR4 6SN7 6SL7 KT66 5881 Bakelite 8Pin K8A Vacuum Tube Socket
$13.20
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2pc 8pin Octal Ceramic Tube Socket K8A Chassis KT88 6SN7 EL34 6P3 Valve Amp Part
2pc 8pin Octal Ceramic Tube Socket K8A Chassis KT88 6SN7 EL34 6P3 Valve Amp Part
$4.84
Time Remaining: 2h 42m
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NOS GE 7N7 tubeoriginal boxSylvania chrome toploktal loctal 6SN7tested great
NOS GE 7N7 tubeoriginal boxSylvania chrome toploktal loctal 6SN7tested great
$10.95
Time Remaining: 3h 5m
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4PCS 8pin K8A Testing Tube Socket Saver For EL34 5881 6SN7 KT88 5Z3P 5AR4 274B
4PCS 8pin K8A Testing Tube Socket Saver For EL34 5881 6SN7 KT88 5Z3P 5AR4 274B
$15.92
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LARGE LOT OF 90 TUBE SOCKETS FOR VINTAGE AMPLIFIER BUILDING 12AX7 6SN7 6C4 EL34
LARGE LOT OF 90 TUBE SOCKETS FOR VINTAGE AMPLIFIER BUILDING 12AX7 6SN7 6C4 EL34
$49.50
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1955 Sylvania 6SN7GTB Tube Black Plate Tall Boy Matched Sections tests strong
1955 Sylvania 6SN7GTB Tube Black Plate Tall Boy Matched Sections tests strong
$39.99
Time Remaining: 6h 17m
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Vintage CBS 6SN7GTB Tube Black Plate D Getter Tall Matched Sections tests strong
Vintage CBS 6SN7GTB Tube Black Plate D Getter Tall Matched Sections tests strong
$24.99
Time Remaining: 6h 17m
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Raytheon 6SN7GT Tube 1951 Black Plate D Gtr Tall Matched Sections tests strong
Raytheon 6SN7GT Tube 1951 Black Plate D Gtr Tall Matched Sections tests strong
$24.99
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Vintage 6SN7GTB Tube Japan Black Plate Halo Getter Matched Sections tests strong
Vintage 6SN7GTB Tube Japan Black Plate Halo Getter Matched Sections tests strong
$14.99
Time Remaining: 6h 17m
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NOS NIB RCA 6SN7GTB Coin Base Tube Black Plate Halo Matched Section tests strong
NOS NIB RCA 6SN7GTB Coin Base Tube Black Plate Halo Matched Section tests strong
$19.99
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RCA 6SN7GTA Tube 1954 Black Plate Dual Side D Getter Matched Sections tests good
RCA 6SN7GTA Tube 1954 Black Plate Dual Side D Getter Matched Sections tests good
$24.99
Time Remaining: 6h 17m
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1955 CBS 6SN7GTB Tube Black Plate D Getter Tall Matched Sections tests strong
1955 CBS 6SN7GTB Tube Black Plate D Getter Tall Matched Sections tests strong
$24.99
Time Remaining: 6h 17m
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1pc gold plated instead 6SN7 B65 12SN7 6SL7 12SL7 Multi tube converter adapter
1pc gold plated instead 6SN7 B65 12SN7 6SL7 12SL7 Multi tube converter adapter
$7.50
Time Remaining: 6h 23m
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6N16B VI 6SN7 DOUBLE TRIODES NEW GOLD GRID Military 81S 4 pcs
6N16B VI 6SN7 DOUBLE TRIODES NEW GOLD GRID Military 81S 4 pcs
$9.90
Time Remaining: 6h 25m
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NOS Philco 6SN7GTA Vintage Black Plate Vacuum Tube
NOS Philco 6SN7GTA Vintage Black Plate Vacuum Tube
$20.00
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NIB NOS CBS 6SN7GTB Black Plate 2 Hole AMPLITREX Tested NEW  100 96
NIB NOS CBS 6SN7GTB Black Plate 2 Hole AMPLITREX Tested NEW 100 96
$14.00
Time Remaining: 7h 14m
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6n8s 1578 6sn7 double triode tube melz metal matched pair
6n8s 1578 6sn7 double triode tube melz metal matched pair
$75.00
Time Remaining: 7h 25m
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6n8s 1578 6sn7 double triode tube melz metal nos matched pair
6n8s 1578 6sn7 double triode tube melz metal nos matched pair
$125.00
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1 Sylvania 6SN7 WGT JAN CHC Tube Black Plates Tested Good
1 Sylvania 6SN7 WGT JAN CHC Tube Black Plates Tested Good
$39.99
Time Remaining: 7h 40m
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NEW NATIONAL ELECTRONICS ELECTRONIC TUBE 6SN7GTB
NEW NATIONAL ELECTRONICS ELECTRONIC TUBE 6SN7GTB
$14.00
Time Remaining: 7h 41m
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Tube compressor limiter variable mu type two channel MASTER SLAVE 1950 6SN7
Tube compressor limiter variable mu type two channel MASTER SLAVE 1950 6SN7
$470.00
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2x 6SN7 Kenrad Valve tube Rhre
2x 6SN7 Kenrad Valve tube Rhre
$49.00
Time Remaining: 7h 53m
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2 6SN7GTB Sylvania Top Getter Vintage Tubes Certified Audiophile Plus Full Life
2 6SN7GTB Sylvania Top Getter Vintage Tubes Certified Audiophile Plus Full Life
$45.00
Time Remaining: 8h
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2 6SN7GTB Sylvania Top Getter Vintage Tubes Highfidelity + Grade Strong Testng
2 6SN7GTB Sylvania Top Getter Vintage Tubes Highfidelity + Grade Strong Testng
$42.00
Time Remaining: 8h
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2x 6sn7GT RCA Tube Rhre Valve
2x 6sn7GT RCA Tube Rhre Valve
$49.00
Time Remaining: 8h 1m
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ONE pcs 6SN7GT Russia NOS bulk 1972 XII made Reflector
ONE pcs 6SN7GT Russia NOS bulk 1972 XII made Reflector
$2.70
Time Remaining: 8h 3m
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PAIR HIGH OUTPUT 6SN7GT RCA BLACK PLATE VINTAGE TUBES TV7+ SUPERB
PAIR HIGH OUTPUT 6SN7GT RCA BLACK PLATE VINTAGE TUBES TV7+ SUPERB
$60.00
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6SN7 GT BLACKGLASS National Union Bottom D Getter Tests over NOS ratings
6SN7 GT BLACKGLASS National Union Bottom D Getter Tests over NOS ratings
$47.95
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Ampeg Reverberocket R 12 R A Primo Tube Set 6SL7 6SN7 7591 Version
Ampeg Reverberocket R 12 R A Primo Tube Set 6SL7 6SN7 7591 Version
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Ampeg Reverberocket R 12 R B Primo Tube Set 6SL7 6SN7 7591
Ampeg Reverberocket R 12 R B Primo Tube Set 6SL7 6SN7 7591
$74.98
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RCA 6SN7 GTB PLATINUM MATCHED QUAD COIN BASE well balanced in Gm
RCA 6SN7 GTB PLATINUM MATCHED QUAD COIN BASE well balanced in Gm
$87.47
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tube Vintage 6N8S 6SN7 12 542 61
tube Vintage 6N8S 6SN7 12 542 61
$7.00
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2 PAIR 4 VINTAGE SYLVANIA CROSLEY 6SN7 GTB AMP RADIO TUBES TV7 TESTED GOOD
2 PAIR 4 VINTAGE SYLVANIA CROSLEY 6SN7 GTB AMP RADIO TUBES TV7 TESTED GOOD
$19.00
Time Remaining: 10h 29m
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Hickok Tested Used RCA 6SN7 GT Amp Tube Gray Glass D Base Getter Tests NOS
Hickok Tested Used RCA 6SN7 GT Amp Tube Gray Glass D Base Getter Tests NOS
$41.99
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SYLVANIA 6SN7 GTA NOS PLATINUM MATCHED QUAD well balanced Quad
SYLVANIA 6SN7 GTA NOS PLATINUM MATCHED QUAD well balanced Quad
$157.47
Time Remaining: 11h 19m
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SYLVANIA 6SN7 GT TALL GLASS PLATINUM MATCHED QUAD well balanced Quad
SYLVANIA 6SN7 GT TALL GLASS PLATINUM MATCHED QUAD well balanced Quad
$184.47
Time Remaining: 11h 24m
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Vintage 3 Trio GE Reliable Arvin 6SN7GTB USED Tubes
Vintage 3 Trio GE Reliable Arvin 6SN7GTB USED Tubes
$9.00
Time Remaining: 11h 26m
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SYLVANIA 6SN7 GTA NOS Well Balanced Gm  Ip PLATINUM MATCHED PAIR
SYLVANIA 6SN7 GTA NOS Well Balanced Gm Ip PLATINUM MATCHED PAIR
$84.47
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RARE MATCHED PAIR RCA 6SN7GTB 6SN7GT COIN BASE BLACK PLATE Vtg Amp Tubes NOS NIB
RARE MATCHED PAIR RCA 6SN7GTB 6SN7GT COIN BASE BLACK PLATE Vtg Amp Tubes NOS NIB
$69.00
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7x 6SN7 GTB RCA Westinghouse Heintz Kaufman Black Flat Plate Triode Tube Tested
7x 6SN7 GTB RCA Westinghouse Heintz Kaufman Black Flat Plate Triode Tube Tested
$49.99
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GE 6SN7GTB ELECTRON TUBE TESTED 70
GE 6SN7GTB ELECTRON TUBE TESTED 70
$16.00
Time Remaining: 12h 1m
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2x Sylvania JAN CHS 6SN7 6SN7WGT Black T Plate Brown Base Tested Strong
2x Sylvania JAN CHS 6SN7 6SN7WGT Black T Plate Brown Base Tested Strong
$24.99
Time Remaining: 12h 12m

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NOS Set of 2 Electronic Tubes Sylvania 6SN7GTB  Raytheon 6SN7GTB
NOS Set of 2 Electronic Tubes Sylvania 6SN7GTB Raytheon 6SN7GTB
$27.99
Time Remaining: 12h 33m
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8pin Bakelite Tube Sockets 6P3S E 6L6GC 6SN7 EL84 KT88 Lot of 10
8pin Bakelite Tube Sockets 6P3S E 6L6GC 6SN7 EL84 KT88 Lot of 10
$10.00
Time Remaining: 12h 34m
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Savoy House 7 1041 6 SN Penrose 6 Light Satin Nickel Chandelier
Savoy House 7 1041 6 SN Penrose 6 Light Satin Nickel Chandelier
$264.00
Time Remaining: 12h 42m
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6 USED TUBES 6A8G 6AC5G 6AR6 6HF5 6K5G 6SN7 6X5 21HJ5 25L6G 27 30JZ6
6 USED TUBES 6A8G 6AC5G 6AR6 6HF5 6K5G 6SN7 6X5 21HJ5 25L6G 27 30JZ6
$6.00
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7 USED TUBES 0A4G 6C5G 6JA5 6SN7GT 6V6GT 31 31LZ6 42 R49 58HE7 75 81
7 USED TUBES 0A4G 6C5G 6JA5 6SN7GT 6V6GT 31 31LZ6 42 R49 58HE7 75 81
$7.00
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NOS Testing PAIR RCA 6SN7GTB Offset Black Plates VACUUM TUBES 6868
NOS Testing PAIR RCA 6SN7GTB Offset Black Plates VACUUM TUBES 6868
$24.95
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6SN7 GTA 6SN7GTA Dual Triode Vacuum Tube GE 1955 Test Strong
6SN7 GTA 6SN7GTA Dual Triode Vacuum Tube GE 1955 Test Strong
$18.71
Time Remaining: 13h 30m
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8 Pin Octal Phenolic Tube Base New Old Stock Canada Mfg Date 1945 6SN7 EL34 6L6
8 Pin Octal Phenolic Tube Base New Old Stock Canada Mfg Date 1945 6SN7 EL34 6L6
$0.97
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2 NOS UNUSED Vacuum 6SN7 GTB BARBER COLMAN STROMBURG 6SN7GTB AMP Tubes 36
2 NOS UNUSED Vacuum 6SN7 GTB BARBER COLMAN STROMBURG 6SN7GTB AMP Tubes 36
$40.00
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GE 6SN7GTB CANADA TIGHT MATCH PAIR GREY PLATE SIDE GETR TEST NOS MINTY
GE 6SN7GTB CANADA TIGHT MATCH PAIR GREY PLATE SIDE GETR TEST NOS MINTY
$11.95
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RAYTHEON 6SN7GT TIGHT BALANCE BLACK PLATE S ROD D GETR VINTAGE 1944
RAYTHEON 6SN7GT TIGHT BALANCE BLACK PLATE S ROD D GETR VINTAGE 1944
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KENRAD VT 231 6SN7GT BLACK PLATE FOIL GETR COPR GRID POST VINTAGE 1944
KENRAD VT 231 6SN7GT BLACK PLATE FOIL GETR COPR GRID POST VINTAGE 1944
$49.95
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4x Shuguang 6SN7 6SN7GT Chinese Made In China Tube Tested Strong
4x Shuguang 6SN7 6SN7GT Chinese Made In China Tube Tested Strong
$15.99
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Sylvania 7N7 twin triode radio tubeloktal 6SN7tested greatloctal
Sylvania 7N7 twin triode radio tubeloktal 6SN7tested greatloctal
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Time Remaining: 16h 14m
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6SN7GTB Tung Sol
6SN7GTB Tung Sol
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Time Remaining: 16h 16m
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RAYTHEON 6SN7GTB TIGHT MATCH PAIR BLACK PLATE SIDE D GETR TEST NOS VINTAGE 1956
RAYTHEON 6SN7GTB TIGHT MATCH PAIR BLACK PLATE SIDE D GETR TEST NOS VINTAGE 1956
$17.95
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2  NATIONAL ELECTRONICS 6SN7GTB VACUUM TUBES
2 NATIONAL ELECTRONICS 6SN7GTB VACUUM TUBES
$40.00
Time Remaining: 17h 46m
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Sylvania 2 Hole Badboy 6SN7 Vacuum Tube Great Amplitrex Numbers
Sylvania 2 Hole Badboy 6SN7 Vacuum Tube Great Amplitrex Numbers
$45.00
Time Remaining: 17h 48m
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vintage vacuum tubes 2 Tung Sol Tung Sol 6SN7GTB new old stock NOS NIB pair
vintage vacuum tubes 2 Tung Sol Tung Sol 6SN7GTB new old stock NOS NIB pair
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4 x 8 PIN PLK8 2P Russian Octal Tube Sockets 6SN7 6L6 5U4G 6V6 SILVER COATED
4 x 8 PIN PLK8 2P Russian Octal Tube Sockets 6SN7 6L6 5U4G 6V6 SILVER COATED
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Westinghouse 6SN7GTB Vacuum Tube Amplitrex Tested
Westinghouse 6SN7GTB Vacuum Tube Amplitrex Tested
$20.00
Time Remaining: 18h 8m
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2 matched 1949 50 Sylvania 6SN7GT tubes Black Plates Copper Grids D Foil
2 matched 1949 50 Sylvania 6SN7GT tubes Black Plates Copper Grids D Foil
$90.95
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PAIR SYLVANIA JAN 7N7 Tall Bottle LOKTAL Vacuum Tubes 6SN7 Sub TESTED I3090
PAIR SYLVANIA JAN 7N7 Tall Bottle LOKTAL Vacuum Tubes 6SN7 Sub TESTED I3090
$26.95
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GE White Graphic Gray Plate 6SN7 1959 Vacuum Tubes Amplitrex Tested
GE White Graphic Gray Plate 6SN7 1959 Vacuum Tubes Amplitrex Tested
$35.00
Time Remaining: 19h 3m
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Sentinel 6SN7 GT Vacuum Tube Results 2990 2600
Sentinel 6SN7 GT Vacuum Tube Results 2990 2600
$23.99
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Quad 1955 Sylvania 6SN7 GTA Vacuum Tubes Very Strong Balanced Tall Nice 2735262
Quad 1955 Sylvania 6SN7 GTA Vacuum Tubes Very Strong Balanced Tall Nice 2735262
$173.98
Time Remaining: 19h 4m
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2 Paired Sylvania 6SN7 GTB Vacuum Tubes Strong Balanced  Matched
2 Paired Sylvania 6SN7 GTB Vacuum Tubes Strong Balanced Matched
$58.99
Time Remaining: 19h 4m
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Philco 6SN7 GTA Vacuum Tube Very Strong  Balanced Results 2625 2490
Philco 6SN7 GTA Vacuum Tube Very Strong Balanced Results 2625 2490
$36.99
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2pcs Red 8pin Tube Base K8A For KT88 6SN7 EL34 6L6 6550 Valve Amp Part
2pcs Red 8pin Tube Base K8A For KT88 6SN7 EL34 6L6 6550 Valve Amp Part
$4.50
Time Remaining: 19h 5m

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6SN7 Lot Of 4 Tubes SylvaniaPair GE Electro Harmonix singles
6SN7 Lot Of 4 Tubes SylvaniaPair GE Electro Harmonix singles
$29.99
Time Remaining: 19h 28m

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5 GE 6SN7GTB Tubes Side Halo Getter Matching Date Codes Tested
5 GE 6SN7GTB Tubes Side Halo Getter Matching Date Codes Tested
$44.99
Time Remaining: 19h 36m
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3 1957 GE General Electric 6SN7GTB Vacuum tubes Matching Date Codes Tested
3 1957 GE General Electric 6SN7GTB Vacuum tubes Matching Date Codes Tested
$26.99
Time Remaining: 19h 36m
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CHDiamond 6SN7 Tube Preamp Khozmo series attenuator  LDR input switching
CHDiamond 6SN7 Tube Preamp Khozmo series attenuator LDR input switching
$1,575.00
Time Remaining: 19h 44m
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Tightly Matched  Balanced Pair GE 6SN7GTB AMPLITREX Tested STRONG 96 100
Tightly Matched Balanced Pair GE 6SN7GTB AMPLITREX Tested STRONG 96 100
$49.00
Time Remaining: 19h 44m
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NOS Testing CBS HYTRON 6SN7GTB Vacuum Tube TV 7 Test 31763
NOS Testing CBS HYTRON 6SN7GTB Vacuum Tube TV 7 Test 31763
$13.95
Time Remaining: 20h 3m
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CBS Hytron Chrome Dome 6SN7GTB Vacuum Tube TV 7 Tested STRONG 31762
CBS Hytron Chrome Dome 6SN7GTB Vacuum Tube TV 7 Tested STRONG 31762
$13.95
Time Remaining: 20h 4m
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2 GENERAL ELECTRIC GE 6SN7GTB VACUUM TUBES TV7 TESTED
2 GENERAL ELECTRIC GE 6SN7GTB VACUUM TUBES TV7 TESTED
$8.69
Time Remaining: 20h 9m
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NOS SYLVANIA 6SN7GTB CHROME DOME Matching Quad preamp tubes
NOS SYLVANIA 6SN7GTB CHROME DOME Matching Quad preamp tubes
$190.00
Time Remaining: 20h 15m
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Olympia 6SN7GTB Electron Vacuum Tube
Olympia 6SN7GTB Electron Vacuum Tube
$12.00
Time Remaining: 20h 26m
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4 PAIR OF NOS NIB MILITARY SPEC CBS 6SN7 GT TUBE TESTING AT 106 109
4 PAIR OF NOS NIB MILITARY SPEC CBS 6SN7 GT TUBE TESTING AT 106 109
$48.99 (15 Bids)
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6 QUAD LOT OF NOS NIB KEN RAD JAN CKR 6SN7 GT TUBE TESTING NOS
6 QUAD LOT OF NOS NIB KEN RAD JAN CKR 6SN7 GT TUBE TESTING NOS
$90.00 (15 Bids)
Time Remaining: 20h 59m

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7 QUAD LOT OF NOS NIB RCA GE SYLVANIA TUN SOL 6SN7 GTB TUBE TESTING NOS
7 QUAD LOT OF NOS NIB RCA GE SYLVANIA TUN SOL 6SN7 GTB TUBE TESTING NOS
$16.72 (8 Bids)
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12 PAIR OF GE 6SN7 GTA TUBE TESTING AT 113 113 99 99
12 PAIR OF GE 6SN7 GTA TUBE TESTING AT 113 113 99 99
$1.25 (3 Bids)
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13 PAIR OF RCA JAN CRC 6SN7 GT TUBE TESTING AT 117 117 123 117
13 PAIR OF RCA JAN CRC 6SN7 GT TUBE TESTING AT 117 117 123 117
$53.00 (14 Bids)
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15 PAIR OF KEN RAD JAN CKR 6SN7 GT TUBE TESTING AT 98 94 91 95
15 PAIR OF KEN RAD JAN CKR 6SN7 GT TUBE TESTING AT 98 94 91 95
$20.61 (7 Bids)
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18 MATCH  BALANCE PAIR OF RAYTHEON JAN CRP 6SN7 GT TUBE TEST109 109 109 109
18 MATCH BALANCE PAIR OF RAYTHEON JAN CRP 6SN7 GT TUBE TEST109 109 109 109
$21.50 (5 Bids)
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20 SINGLE RAYTHEON JAN CRP 6SN7 GT TUBE TESTING AT 118 105
20 SINGLE RAYTHEON JAN CRP 6SN7 GT TUBE TESTING AT 118 105
$3.50 (4 Bids)
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22 PAIR OF GE 6SN7 GTA TUBE TESTING AT 72 72 83 85
22 PAIR OF GE 6SN7 GTA TUBE TESTING AT 72 72 83 85
$4.25 (5 Bids)
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23 LOT OF 5 6SN7 TUBE MOTOROLA CBS ARVIN GE CBS TESTING GOOD
23 LOT OF 5 6SN7 TUBE MOTOROLA CBS ARVIN GE CBS TESTING GOOD
$6.50 (4 Bids)
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5 PAIR OF NOS NIB KEN RAD JAN CKR 6SN7 GT TUBE TESTING AT 101 88
5 PAIR OF NOS NIB KEN RAD JAN CKR 6SN7 GT TUBE TESTING AT 101 88
$8.50 (4 Bids)
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8 PAIR OF NOS 1 NIB RCA 6SN7 GTB TUBE TESTING AT 103 10397 97
8 PAIR OF NOS 1 NIB RCA 6SN7 GTB TUBE TESTING AT 103 10397 97
$15.50 (7 Bids)
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9 QUAD LOT OF RAYTHEON JAN CRP 6SN7 GT TUBE TESTING EXCELLENT
9 QUAD LOT OF RAYTHEON JAN CRP 6SN7 GT TUBE TESTING EXCELLENT
$40.00 (14 Bids)
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10 MATCHED PAIR OF RAYTHEON JAN CRP 6SN7 GT TUBE TESTING AT 105 111
10 MATCHED PAIR OF RAYTHEON JAN CRP 6SN7 GT TUBE TESTING AT 105 111
$8.50 (6 Bids)
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11 PAIR OF SYLVANIA US NAVY JAN CHS 6SN7 GT TUBE TESTING AT 117 117
11 PAIR OF SYLVANIA US NAVY JAN CHS 6SN7 GT TUBE TESTING AT 117 117
$13.00 (8 Bids)
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14 PAIR OF RCA 6SN7 GTB TUBE TESTING AT 99 102 111 108
14 PAIR OF RCA 6SN7 GTB TUBE TESTING AT 99 102 111 108
$0.07 (2 Bids)
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16 PAIR OF SYLVANIA JAN CHS 6SN7 GT  WGT TUBE TESTING AT 110 112 104 111
16 PAIR OF SYLVANIA JAN CHS 6SN7 GT WGT TUBE TESTING AT 110 112 104 111
$16.50 (10 Bids)
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17 PAIR OF MOTOROLA  DELCO 6SN7 GTB TUBE TESTING AT 74 65 74 69
17 PAIR OF MOTOROLA DELCO 6SN7 GTB TUBE TESTING AT 74 65 74 69
$1.01 (3 Bids)
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