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(!) (#1 6BK7B Single) 6BK7B Sylvania black plates NOS 1960's (13.6/13.8ma)

(!) (#1 6BK7B Single) 6BK7B Sylvania black plates NOS 1960's (13.6/13.8ma)

$ 14.99

1 low noise tube) 6BK7B Sylvania black plates NOS 1960's
1 tube) 13.6ma Gm=7500
1 tube) 13.8ma Gm=7800

Tested on Amplitrex

Good Ma range 8-12ma

Good Gm range 6000-8000  

(also see 6BZ7 and 6BQ7B, sub for 6N1, 6N1P)

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See more: vacuum tube
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