(!!!) (PAIR 1950's) 6350 Sylvania black plates "D" getter NOS 1950's (11/9ma and 11.4/9.2ma)

1 matched pair) 6350 Sylvania black plates "D=square" getter NOS 1950's

1 tube) 11/8.8ma Gm=4700/4100  

1 tube) 11.4/9.2ma Gm=4800/4200 

Matched on Amplitrex

Vplate=150V

Vgrid=-5V

Good Ma per section = 9-11ma

Good Gm per section = 4500-5000

recommended for:

- VTL Wotan MB1250, VTL MB450, VTL MB300, VTL 225 Deluxe, VTL Deluxe 140, VTL Stereo 120/50, VTL ST150

- VTL Siegfried

- Joule Electra LA-150 (mk2)

- Joule Electra LA 100 Mk.III

- Shindo-lab Corton