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(!!!!) (Best 5691 Pair) 5691 RCA red base black plates NOS 1954-1958 (2.2/2.1ma and 2.2/2.1ma) 1-2% matched
(!!!!) (Best 5691 Pair) 5691 RCA red base black plates NOS 1954-1958 (2.2/2.1ma and 2.2/2.1ma) 1-2% matched
$ 349.99
1 low noise pair) 5691 RCA red base black plates NOS same build
1 tube) 2.2/2.1ma (4-17=1954) branded GL-5691 GE
1 tube) 2.2/2.1ma (58-04=1958)
best 6SL7GT sub
very smooth sound, low noise
(Good Ma Current Range = 2-3ma)
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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 (Best 5691 Pair) 5691 RCA red base black plates NOS 1954-1958 (2.2/2.1ma and 2.2/2.1ma) 1-2% matched&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_5ab84eac-bfaa-4f4e-a265-2e94f9e71f91.jpg?v=1720636901){kind=link}
 (Best 5691 Pair) 5691 RCA red base black plates NOS 1954-1958 (2.2/2.1ma and 2.2/2.1ma) 1-2% matched "Pin It")