Hi, board..im a new member, but ive been lurking for a while 
Just recently someone gave me a Sansui 9090DB in emaculate condition..It was stored for almost 20 years and everything works/sounds good. The only problem is the green lights behind the radio frequency spectrum/dial is going out.
1) What kind of lights are they?
2) How much do they generally cost?
3) How difficult is it to replace them myself ?
I would like to do this myself if it doesnt require too much work to save $$$ on labor. Thanks for reading and i would appreciate any replies that would help.

Just recently someone gave me a Sansui 9090DB in emaculate condition..It was stored for almost 20 years and everything works/sounds good. The only problem is the green lights behind the radio frequency spectrum/dial is going out.
1) What kind of lights are they?
2) How much do they generally cost?
3) How difficult is it to replace them myself ?
I would like to do this myself if it doesnt require too much work to save $$$ on labor. Thanks for reading and i would appreciate any replies that would help.