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(!) (#2 Best 7308 Siemens) E188CC=7308 Siemens Halske NOS 1972 (12.4/16.4ma)

(!) (#2 Best 7308 Siemens) E188CC=7308 Siemens Halske NOS 1972 (12.4/16.4ma)

$ 159.99

1 low noise tube) E188CC=7308 Siemens Halske NOS (G6-2L=1972) "A" frame - slightly mismatched sections 

1 section) 12.4ma Gm=11,800

1 section) 16.4ma Gm=13,900

Tested on Amplitrex

Vplate=90V

Vgrid=-1.2V

Good Ma range 12-15ma

Good Gm range 11,000 - 12,500

 

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