(!!) (Recommended Pair) 12B4A GE NOS 1960's same build (32.5ma and 34ma)
$ 19.99
1 pair) 12B4A GE NOS 1960's same build
1 tube) 32.5ma Gm=6950 GE rebranded Motorola 1963
1 tube) 34ma Gm=7100 GE rebranded RCA
Matched on Amplitrex
Vplate=140
Vgrid=-15V
Good Ma range 25-40ma
Good Gm = 6000
See more: vacuum tube
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 (Recommended Pair) 12B4A GE NOS 1960's same build (32.5ma and 34ma)&Category=vacuum tube&ImageURL=http://cdn.shopify.com/s/files/1/0333/7633/products/1_188f890d-eff3-446b-b205-8d864cfaa14b.jpg?v=1619127320){kind=link}
 (Recommended Pair) 12B4A GE NOS 1960's same build (32.5ma and 34ma) "Pin It")