Audio tubes are not considered light bulbs as far as I know.
If they were part of the ban then anything under 40 watts
would still be ok.
I have seen nothing online that mentions audio tubes in the
ban. The reason for the ban is to force people to use more
efficient bulbs. In the case of audio tubes there are no
other alternative bulbs to use. It would not make sense to
ban the tubes themselves.
If tube based equipment was more popular I could see them
trying to ban it, but it is just a blip on the radar, and
not worth their time to worry about.
If they were part of the ban then anything under 40 watts
would still be ok.
I have seen nothing online that mentions audio tubes in the
ban. The reason for the ban is to force people to use more
efficient bulbs. In the case of audio tubes there are no
other alternative bulbs to use. It would not make sense to
ban the tubes themselves.
If tube based equipment was more popular I could see them
trying to ban it, but it is just a blip on the radar, and
not worth their time to worry about.