(!!!) (Single) 8417 Sylvania branded Dumont NOS 1980 (84ma) Title: 8417 Sylvania

8417 Sylvania branded Dumont NOS top and side getter

1 tube) Iplate= 84ma,

Iscreen= 3.8ma,

Gm=20,000

Tested on Amplitrex:

Vplate=300V

Vscreen=300V

Vgrid=-12V

Good NOS Ma range 80-110ma

Good NOS Gm = 20-23,000

Recommended For:

– UFO

– Fisher SA-1000

– Dynaco

– Quicksilver

– Dynaco Mark VI introduced in 1976

– Gibson

– Bogen

– Harmon Kardon