(!!!!) (Single) 6BK7B Tungsol branded RCA "U" getter 1957 (10/14ma)

1 low noise tube) 6BK7B Tungsol branded RCA "U" getter 1957 (KI)

10ma Gm=6200

14ma Gm=6900

- Modwright Transporter
- Schiit Lyr amp 2011
- Don Allen
- Donald North Audio (DNA) Stratus

(6BK7B is a very good substitute for the 6N1P)

(also see 6BQ7A and 6BZ7, you can sub a 6BK7B for a 6DJ8)
(6.3 @ 450ma, Vplate max = 300V)