(!!) (Best Pair) E90F=6BH6 Philips Holland NOS 1963 (7.7/8.0ma) (Marantz 8B)
$ 39.99
1 pair) E90F=6BH6 Philips Holland NOS 1963 (Heerlen plant)
1 tube) 7.7ma Gm=4700
1 tube) 8.0ma Gm=4800
Tested on Amplitrex
Good Ma = 6.5-7.5ma
Good Gm = 4000-4500
(best tube for a Marantz 8B)
See more: vacuum tube
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 (Best Pair) E90F=6BH6 Philips Holland NOS 1963 (7.7/8.0ma) (Marantz 8B)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/3_fb8255ba-2466-45cc-9324-4a5d5c88659f.jpg?v=1771870985){kind=link}
 (Best Pair) E90F=6BH6 Philips Holland NOS 1963 (7.7/8.0ma) (Marantz 8B) "Pin It")