(!!!) (Recommended Single) 6BZ7 RCA black plates "D" getter NOS 1957 (11.4/9.5ma)

1 low noise tube) 6BZ7 RCA black plates "D" getter NOS 1957 (KJ)

11.4ma Gm=7800

9.5ma Gm=6700

Tested on Amplitrex

Good Ma = 9ma

Good Gm = 6000-6400

(also see 6BQ7A and 6BK7B)

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