(!) (SINGLE) 6BZ7=6BQ7A GE GM Delco "U" getter NOS 1950's (11.6/10ma)

1 low noise tube) 6BZ7=6BQ7A GE GM Delco "U" getter NOS 1950's

1 section) 11.6ma Gm=7100

1 section) 10.0ma Gm=6600

Tested on Amplitrex

Good Ma range 6-8ma

Good Gm = 6000

 
(also see 6BQ7A and 6BK7B)

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