(!!) 6EW7 GE PHILCO BIG BOTTLE black plates NOS 1964 (4.8/62ma)

1 tube) 6EW7 GE PHILCO BIG BOTTLE black plates NOS 1964

1 triode section) 4.9ma Gm=1800

1 triode section) 62ma Gm=9800

Tested on Amplitrex AT1000

Section 1 reference = 4-6ma and Gm=1700-2100

Section 2 reference = 45-50ma and Gm=7000-8000

(6EW7 is a close substitute to the 6DE7)

– Woo Audio 6
– Woo Audio 6 SE

RCA made skinny bottle 6EW7
Sylvania made FAT BOTTLE 6EW7