Most instruments I've worked-on had a low or high intensity capability.
It would make sense on a fridge, to dim at night or be more bright in daylight.
I was just flipping through a trade magazine, and somebody is selling NEC VFD's,
So somebody out there must still be making them.
I was hoping to get the fridge model number. If somebody can get the owner's manual,
it might tell us if the fridge display has programmable low or high intensity.
Incidentally. On the old Wavetek instruments I used to work-on, there was a small
trimming pot on the display board to adjust intensity.