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(!!!!!) (Best Pair) JAN-5691 Sylvania black plates NOS 1977 (2.4/2.5mA and 2.5/2.5mA) 1-2% matched (Best 6SL7GT sub) (same internals as 5691 red base)

(!!!!!) (Best Pair) JAN-5691 Sylvania black plates NOS 1977 (2.4/2.5mA and 2.5/2.5mA) 1-2% matched (Best 6SL7GT sub) (same internals as 5691 red base)

$ 249.99

1 low noise pair) JAN-5691 Sylvania black plates NOS 1977 1-3% matched

1 tube) 2.4/2.5mA and Gm=1600/1600

1 tube) 2.5/2.5mA and Gm=1600/1700

 

- very good detail 

- low noise

- reference tube

 

Good mA range 2.0mA+

Good Gm range 1500+

  

Recommended for

- Ampeg Heritage B-15
- Alessandro Itallian Greyhound jazz amp
- Alessandro Black and Tan 2005
- Almarro A318B
- Eddie Current

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