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(!!!!!) (2nd Best Pair) E188CC=7308 Siemens Halske Germany NOS 1968-1969 (13.8/12.8ma and 13.5/14.2ma) (very low noise) (phono grade) (rare)

(!!!!!) (2nd Best Pair) E188CC=7308 Siemens Halske Germany NOS 1968-1969 (13.8/12.8ma and 13.5/14.2ma) (very low noise) (phono grade) (rare)

$ 599.99

Sorry, this product is sold out!

1 ultra-low noise pair) E188CC=7308 Siemens Halske Germany NOS gold pins "O" getter 

1 tube) 13.8/12.8ma Gm=12,800/12,000 (G4-9D=1969)

1 tube) 13.5/14.2ma Gm=12,600/13,200 (G4-8L=1968)

 

Tested on Amplitrex

Vplate=90V

Vgrid=-1.2V

Good Ma range 12-15ma

Good Gm range 11,000 - 12,500

 

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