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(!!!) (#1 310A Single) 310A Western Electric small punch plate NOS 1954 in white box (5.2ma)

$ 299.99

310A Western Electric small punch plate "D" getter halo NOS in white box 1954, large getter, very small hairline crack in base (426=1954)

5.2ma

Gm=1600 

 

Vplate=180V

Vscreen=135V

Vgrid=-3V

Good Ma range 5-5.5ma

Good Gm range 1600-1800

 

Tested on TV-7D/U

1 tube) 50/30 (1954)

 

General Info

Pentode, Vfil=10V

 

- Maison Audiophile Paris 300B Legend amp 1990
- Tektron 211 amp
- WE 91B amp
- Shindo

See more: vacuum tube
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