(!!) (Recommended Pair) 12HG7=12GN7A Sylvania NOS 1970 era (42ma and 43ma)
$ 19.99
1 pair) 12HG7=12GN7A Sylvania NOS
1 tube) 42ma Gm=36,000
1 tube) 43ma Gm=34,400
(12HG7=ruggedized frame-grid version of 12BY7A, uprated to 10 watts)
Pentode
See more: vacuum tube
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 (Recommended Pair) 12HG7=12GN7A Sylvania NOS 1970 era (42ma and 43ma) "Pin It")
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