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(!!!!!) (Best Overall Pair) 350B Western Electric test like new 1972 and 1974 same build in WE boxes (101ma Gm=8250) and (105ma Gm=8700)

$ 1,199.99

1 matched pair) 350B Western Electric test like new 1972 and 1974 same build in WE boxes

1 tube) 101ma Gm=8250 (7252=1972)

1 tube) 105ma Gm=8700 (7413=1974)

 

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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