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6350 Sylvania made for IBM black plates

6350 Sylvania made for IBM black plates "U" getter halo tests like new 1959, faded printing (11.8/12.2ma)

By Tube World

$ 28.99

6350 Sylvania made for IBM black plates "U" getter halo tests like new 1959

faded printing in white box

1 section) 11.8ma Gm=4900

1 section) 12.2ma Gm=5000

 

Tested 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

 

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