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5691 RCA Red Base gray plates low hours/tests like new 1966 - broken center guide pin (3.1/3.2ma)

$ 89.99

1 low noise tube) 5691 RCA Red Base gray plates low hours/tests like new 1966 - broken center guide pin (see picture) in white box

3.1ma Gm=1800

3.2ma Gm=1900

 

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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