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(!!!!!) (Best Pair) 5691 RCA red base black plates NOS 1956-1957 (2.2/2.3ma and 2.1/2.4ma)

(!!!!!) (Best Pair) 5691 RCA red base black plates NOS 1956-1957 (2.2/2.3ma and 2.1/2.4ma)

By Tube World

$ 349.99

1 low noise pair) 5691 RCA red base black plates NOS 1956-1957

1 tube) 2.2/2.3ma Gm=1600/1800 (5-17=1955)

1 tube) 2.1/2.4ma Gm=1600/1700 (57-30=1957) 

 

Good Ma range 2-3ma

Good Gm = 1600

 

for:

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

 

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