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(!!!!!) (Recommended Single) JAN-5691 Sylvania black plates NOS 1979 (2.2/2.4mA (Best 6SL7GT sub) (same internals as 5691 red base)
(!!!!!) (Recommended Single) JAN-5691 Sylvania black plates NOS 1979 (2.2/2.4mA (Best 6SL7GT sub) (same internals as 5691 red base)
By Tube World
$ 129.99
1 low noise tube) JAN-5691 Sylvania black plates NOS 1979
2.2mA Gm=1500
2.4mA Gm=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
See more: vacuum tube
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 (Recommended Single) JAN-5691 Sylvania black plates NOS 1979 (2.2/2.4mA (Best 6SL7GT sub) (same internals as 5691 red base)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1_ed702f74-fd7a-45f0-b4b0-003bb7bbb31b.jpg?v=1669507115){kind=link}
 (Recommended Single) JAN-5691 Sylvania black plates NOS 1979 (2.2/2.4mA (Best 6SL7GT sub) (same internals as 5691 red base) "Pin It")