(!!!!!) (Recommended Pair) 6BK7B RCA black plates NOS 1960's (9.5/10ma and 9.8/10.6ma)
By Tube World
$ 49.99
1 low noise pair) 6BK7B RCA black plates "O" getter NOS 1960's
1 tube) 9.5/10.0ma Gm=5700/6100 (BN) 1967
1 tube) 9.8/10.6ma Gm=5700/6300 (AK) 1964
Tested on Amplitrex
Good Ma range 6-8ma
Good Gm = 5000-6000
Tested on Amplitrex
(also see 6BZ7 and 6BQ7A, best sub for 6N1, 6N1P)
- Modwright Transporter
- Schiit Lyr amp 2011
- Don Allen
- Donald North Audio (DNA) Stratus
See more: vacuum tube
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 (Recommended Pair) 6BK7B RCA black plates NOS 1960's (9.5/10ma and 9.8/10.6ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1_cf9404ad-5efc-49e0-8dfa-b811d0b481f3.jpg?v=1679442576){kind=link}
 (Recommended Pair) 6BK7B RCA black plates NOS 1960's (9.5/10ma and 9.8/10.6ma) "Pin It")