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(!) (#1 7308 Siemens Single) E188CC=7308 Siemens Germany "Silver shield" NOS 1975 (13.5/13.6ma) 1% section balance

$ 159.99

1 low noise tube) E188CC=7308 Siemens Germany "Silver shield" NOS (G6-5B=1975) 

1 section) 13.6ma Gm=12,300

1 section) 13.5ma Gm=12,400

Tested on Amplitrex

Vplate=90V

Vgrid=-1.2V

Good Ma range 12-15ma

Good Gm range 11,000 - 12,500

 

 

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