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(!!!!) (Recommended Pair) 6BQ7A RCA black plates NOS 1967 same date codes (11.8/12ma and 11/12.2ma)

(!!!!) (Recommended Pair) 6BQ7A RCA black plates NOS 1967 same date codes (11.8/12ma and 11/12.2ma)

By Tube World

$ 59.99

1 low noise pair) 6BQ7A RCA black plates NOS 1967 same date codes (BM)

1 tube) 11.8/12.0ma Gm=7600/7900 

1 tube) 11.0/12.2ma Gm=7500/8100 

 

Matched on Amplitrex

Good Ma = 8-9ma

Good Gm = 6000-6400 

 
(also see 6BZ7 and 6BK7B)

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