(!!!) 6BQ7A RCA black plates NOS 1970 era (14.0/15.2ma)
By Tube World
$ 15.99
6BQ7A RCA black plates NOS
14.0ma Gm=8450
15.2ma Gm=9000
Tested on Amplitrex
Good Ma range 6-8ma
Good Gm = 6000
(also see 6BZ7 and 6BK7B)
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