Log-in

(!!!!!) (Recommedend Pair from 1961) 350B Western Electric "D" getter halos used/very good 1961 same build in WE boxes (83.5ma Gm=7750) and (84.5ma Gm=7800) 1-2% matched

$ 1,222.22

1 matched pair) 350B Western Electric "D" getter halos used/very good 1961 same build in WE boxes same build in WE boxes - very large getters

1 tube) 83.5ma Gm=7750 (6113=1961) small stain at top of glass

1 tube) 84.5ma Gm=7800 (6139=1961) stain at top of glass

 

Tested on Amplitrex at 350B data sheet settings:

Vplate=250V

Vscreen=250V

Vgrid=-14V

Data Sheet NOS Ma = 90-93ma

Data Sheet NOS Gm = 8200-8300

 

 

 

See more: vacuum tube
Scroll to top