(!!!!) (2nd Best Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1972 (5.8/6.1ma and 58/62ma)

1 matched pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970 era

1 tube) 5.8ma Gm=2000 and 58ma Gm=9100

1 tube) 6.1ma Gm=2200 and 62ma Gm=9000

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

- Woo Audio 6
- Woo Audio 6 SE

RCA made skinny bottle 6EW7
Sylvania and Hitachi Japan made FAT BOTTLE 6EW7