(!!) (Recommended Pair) 12HG7=12GN7A Sylvania coated glass NOS 1970 era (52ma and 55ma)
$ 19.99
1 pair) 12HG7=12GN7A Sylvania coated glass NOS
1 tube) 52ma Gm=29,200
1 tube) 55ma Gm=31,300
(12HG7=ruggedized frame-grid version of 12BY7A, uprated to 10 watts)
Pentode
See more: vacuum tube
Share:
 (Recommended Pair) 12HG7=12GN7A Sylvania coated glass NOS 1970 era (52ma and 55ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_da1f5c18-4ee6-47f0-966f-72d46cefc384.jpg?v=1729530980){kind=link}
 (Recommended Pair) 12HG7=12GN7A Sylvania coated glass NOS 1970 era (52ma and 55ma) "Pin It")