(!!!!!) (Best Value Single) 45 RCA NOS 1940's (42ma)
$ 99.99
45 RCA NOS 1940's in white box
42ma
Gm=2500
Matched on Amplitrex
Vplate=275V
Vgrid=-54.8V
Good NOS ma = 30-35ma
Good NOS Gm = 1800-2000
Recommended for
Tektron
Deja Vu
Victor RE-36 1929
DIY
See more: vacuum tube