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(!!!!!) (RecommendedPair) JAN-5691 Philips by Sylvania black plates NOS 1984-1985 (2.0/2.2mA and 2.1/2.4mA) (Best 6SL7GT sub) (same internals as 5691 red base) 1-3% matched

(!!!!!) (RecommendedPair) JAN-5691 Philips by Sylvania black plates NOS 1984-1985 (2.0/2.2mA and 2.1/2.4mA) (Best 6SL7GT sub) (same internals as 5691 red base) 1-3% matched

$ 199.99

1 low noise pair) JAN-5691 Philips by Sylvania black plates NOS 1984-1985 1-3% matched

1 tube) 2.0/2.2mA and Gm=1400/1700

1 tube) 2.1/2.4mA and Gm=1500/1600

 

- 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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