(!!!) (Recommended Pair) 8417 GE NOS 1969 and 1986 same build (91ma and 94.6ma) Title: 8417 GE NOS

1 pair) 8417 GE NOS same build

1 tube) 91.0ma Gm= 21,600 (1986)

1 tube) 94.6ma Gm= 21,720 (1969) (IZ)

Tested on Amplitrex:

Vplate=300V

Vscreen=300V

Vgrid=-12V

Good Ma range 90-110ma

Good Gm = 20-23,000

Recommended For:

– UFO

– Fisher SA-1000

– Dynaco

– Quicksilver

– Dynaco Mark VI introduced in 1976

– Gibson

– Bogen

– Harmon Kardon