6SL7

July 6, 2008 | Leave a Comment

The 6SL7 is a high-mu twin triode in an octal based glass package. To my knowledge, there were not any metal shell versions made. Each triode section operates as a class-A amplifier. This tube has much higher mu than it's cousin, the 6SN7. It's factor is 70, whereas the 6SN7 is only 20, therefore these two tubes are not interchangeable. There is still a good population of hi-fi and musical instrument amps using this tube in the preamp stage out there, and these tubes are still available. The 6SL7 was never as popular as the 6SN7---due to the 6SN7's widespread use in television chassis design---so this tube does not turn up as often whenever vintage tubes are being sold. It is, in the proper circuit, a wonderful sounding tube, and audiophiles would do well to try the NOS vintage 6SL7 tubes before buying anything currently made today.




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2x National Electronics 6SL7GT 5691 NOS NIB
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RAYTHEON 6SL7GT VT229 BLK ROUND PLATE D GETR TIGHT BALANCE TEST NOS EARLY 1950S
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Sylvania Brown Base JAN 6SL7WGT Vacuum Tube Amplitrex Tested Strong
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Sylvania 6SL7WGT Matched Pair
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1 Sylvania 6SL7 GT Round Plate Vacuum Tube Tested Good On Calibrated Hickok
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NOS NIB RCA 6SL7GT Tube USA 1952 tests good
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Sonotone ECC35 6SL7 Brown Base Tube 1961 Mullard or Brimar Tests Super Strong
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1 Crosley RCA 6SL7 GT D Getter Vacuum Tube Tested Good On Calibrated Hickok
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6C8G JAN KEN RAD Round Plate 1943 Match + Bal Quad 6SN7 6SL7 Sub use Adapters
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Time Remaining: 1d 22h 42m
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NEW Shuguang Chinese 6N9P 6SL7 6H9C Vacuum Tube 2PCS
NEW Shuguang Chinese 6N9P 6SL7 6H9C Vacuum Tube 2PCS
$19.99
Time Remaining: 1d 22h 52m
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Genuine 1 matched pair Full Music 6SL7 Audiophile Vacuum Tube
Genuine 1 matched pair Full Music 6SL7 Audiophile Vacuum Tube
$121.50
Time Remaining: 2d 43m
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1pc 6SL7 6N9P instead 6N2 tube converter adapter
1pc 6SL7 6N9P instead 6N2 tube converter adapter
$6.90
Time Remaining: 2d 2h 55m
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4pcs Vacuum Tube Silicone Damper Ring 12AX7 KT88 300B EL34 6SN7 2A3 6550 6Z4
4pcs Vacuum Tube Silicone Damper Ring 12AX7 KT88 300B EL34 6SN7 2A3 6550 6Z4
$3.29
Time Remaining: 2d 3h 25m
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1 NOS Raytheon 6SL7GT Vacuum Tube Black Envelope TESTS GOOD
1 NOS Raytheon 6SL7GT Vacuum Tube Black Envelope TESTS GOOD
$10.95
Time Remaining: 2d 4h 32m
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1 NOS GE 6SL7GT Vacuum Tube TESTS GOOD
1 NOS GE 6SL7GT Vacuum Tube TESTS GOOD
$14.50
Time Remaining: 2d 4h 32m
Buy It Now for only: $14.50
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6N9S SARATOV Vintage 1968 Made TUBES MATCHED PAIR 6SL7 MILITARY GRADE
6N9S SARATOV Vintage 1968 Made TUBES MATCHED PAIR 6SL7 MILITARY GRADE
$10.75
Time Remaining: 2d 4h 47m
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6N9S  6SL7  69 vacuum tubes 1970 pair
6N9S 6SL7 69 vacuum tubes 1970 pair
$6.00
Time Remaining: 2d 4h 51m
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6N9S  6SL7  69 vacuum tubes 1962 pair
6N9S 6SL7 69 vacuum tubes 1962 pair
$6.00
Time Remaining: 2d 4h 51m
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Lot of 6 RCA Radiotron Electron Tubes 12W6GT 10EG7 6W4GT 6SL7GT 6AC7 6DN7
Lot of 6 RCA Radiotron Electron Tubes 12W6GT 10EG7 6W4GT 6SL7GT 6AC7 6DN7
$15.00
Time Remaining: 2d 4h 54m
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Strong NOS Sylvania Chrome Dome Black Plate 6SL7GT Tube
Strong NOS Sylvania Chrome Dome Black Plate 6SL7GT Tube
$27.99
Time Remaining: 2d 5h 37m
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Strong Sylvania Black Plate Solid Bottom D Getter 6SL7GT Tube
Strong Sylvania Black Plate Solid Bottom D Getter 6SL7GT Tube
$17.49
Time Remaining: 2d 5h 45m
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