Log-in
(!!) (Recommended GE Pair) 12B4A GE NOS 1960's same build (42ma and 42.5ma)

(!!) (Recommended GE Pair) 12B4A GE NOS 1960's same build (42ma and 42.5ma)

$ 20.99

1 pair) 12B4A GE NOS 1960's same build

1 tube) 42.5ma Gm=7500 GE rebranded Westinghouse 1965

1 tube) 42ma Gm=7250 GE rebranded RCA

 

Matched on Amplitrex

Vplate=140

Vgrid=-15V

Good Ma range 25-40ma

Good Gm = 6000

 

 

See more: vacuum tube
Scroll to top