(!!!!) (Best Overall Pair) E810F=7788 Amperex PQ USA NOS gold pins 1974 (57ma and 57.5ma)
$ 144.44
1 pair) E810F=7788 Amperex PQ USA NOS gold pins 1974 same date codes in white boxes
1 tube) 57.0ma Gm=56,500
1 tube) 57.5ma Gm=60,000
Good Ma range 35-45ma
Good Gm = 35,000 - 45,000
(Frame-Grid 10,000-hour low-noise Pentode, Filament=6.3V @ 340ma)
- Allnic H-3000 phono
- Allnic L-1500 linestage
- Allnic L-3000
See more: vacuum tube
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 (Best Overall Pair) E810F=7788 Amperex PQ USA NOS gold pins 1974 (57ma and 57.5ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/5_ec0ed453-d051-40c7-b98e-a8b82a3489c1.jpg?v=1780868626){kind=link}
 (Best Overall Pair) E810F=7788 Amperex PQ USA NOS gold pins 1974 (57ma and 57.5ma) "Pin It")