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(!!!) (#1 310A Pair from 1969) 310A Western Electric large punch plate NOS 1969 same date codes (6.7ma and 6.8ma) (highest Ma and Gm) (BUY 2 PAIRS RECEIVE 5% DISCOUNT)

(!!!) (#1 310A Pair from 1969) 310A Western Electric large punch plate NOS 1969 same date codes (6.7ma and 6.8ma) (highest Ma and Gm) (BUY 2 PAIRS RECEIVE 5% DISCOUNT)

$ 479.99

1 pair) 310A Western Electric large punch plate NOS (6913=1969) same date codes

1 tube) 6.7ma Gm=2000 slightly tilted top cap

1 tube) 6.8ma Gm=2000 slightly tilted top cap

BUY 2 PAIRS RECEIVE 5% DISCOUNT

 

Vplate=180V

Vscreen=135V

Vgrid=-3V

Good Ma range 5-5.5ma

Good Gm range 1600-1800

 

 

 

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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