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(!!!!!) (Best Single) 350B Western Electric NOS 1975 (104ma Gm=9250)

$ 649.99

1 tube) 350B Western Electric "O" getter halo NOS (7552=1975) original box

104ma

Gm=9250

 

Tube plugged into octal socket in picture

 

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

 

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