(!!!!!) (Recommended Pair) 8417 Sylvania NOS 1970”s same build (108ma and 114.5ma) (close Gm) Title: 8417 Sylvania NOS

1 pair) 8417 Sylvania NOS 1970”s excellent condition – top and side getters

Iplate=

108ma

114.5ma

Iscreen=

5.4ma

4.7ma

Gm=

21,400

21,700

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