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(!!!!) (~ BEST SOUNDING PAIR ~) 310A Western Electric small punch plate NOS 1953-1954 in white boxes (5.8ma and 6.4ma)

(!!!!) (~ BEST SOUNDING PAIR ~) 310A Western Electric small punch plate NOS 1953-1954 in white boxes (5.8ma and 6.4ma)

$ 468.88

1 pair) 310A Western Electric small punch plate "D" getter halo NOS in white boxes, large getters

1 tube) 6.4ma Gm=1800 (352=1953)

1 tube) 5.8ma Gm=1700 (426=1954)

 

Vplate=180V

Vscreen=135V

Vgrid=-3V

Good Ma range 5-5.5ma

Good Gm range 1600-1800

 

Tested on TV-7D/U

1 tube) 54/30 (1954)

1 tube) 51/30 (1953)

 

General Info

Pentode

Vfil=10V

 

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