(!!!!!) (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)
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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