8417 Sylvania branded GE used/good 1970”s (87ma) 8417 Sylvania branded GE used/good 1970”s: 8417 Sylvania branded GE used/good 1970”s

8417 Sylvania branded GE used/good 1970”s good top and side getter

87ma

Gm=19,450

Tested on Amplitrex:

Vplate=300V

Vscreen=300V

Vgrid=-12V

Good used Ma range 70-90ma

Good used Gm = 17,000 – 19,000

For:

– UFO

– Fisher SA-1000

– Dynaco

– Quicksilver

– Dynaco Mark VI introduced in 1976

– Gibson

– Bogen

– Harmon Kardon