(!!!) 6DE7 Sylvania black plates "U" getter NOS 1950's (8/31ma) (Woo Audio)

6DE7 Sylvania black plates "U" getter NOS 1950's

8.0ma Gm=2100

31ma Gm=6100

Tested on Amplitrex

Good Ma / Gm = 4.5-5.5ma Gm=1800-2000

Good Ma / Gm = 30-40ma Gm=6000-7000

6DE7 is a dual triode with a High-M triode section and a Low-Mu triode section

- Woo Audio WA6SE (2008-present)