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(!!!) 6BQ7A RCA black plates NOS

(!!!) 6BQ7A RCA black plates NOS "O" getter 1957 (8.2/8.4ma)

$ 21.99

1 tube) 6BQ7A RCA black plates NOS "O" getter NOS 1957 (KN)

8.2ma Gm=6600

8.4ma Gm=6700

 

Tested on Amplitrex

Good Ma = 9ma

Good Gm = 6000-6400

 
(also see 6BZ7 and 6BK7B)

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See more: vacuum tube
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