On Apr 25, 3:58*am, Ivan wrote:
I have a two-tube fluorescent desk lamp that buzzes too annoyingly to
use, but it's a terrific lamp otherwise. *Any ideas how to silence it?

There is likely a thing called a ballast (a sort of transformer)
inside lamp base, (not much info provided to go on!) and it may be
slightly loose.Tighten the screws holding the ballast. Glue the
ballast in place/place or jam a piece of something softer maybe
cardboard between ballast and the box/frame etc. Twist the metal case
of the lamp base holding the ballast so it doesn't vibrate. Add weight
to bottom of lamp base? Pour in some cement or heavy
glue ............. !
In other words do everything possible to stop vibration due to the 60
cycle (In North America) frequency of the electrcity being supplied
when the lamp is switched on. Maybe the clamp of the ballast itself is
slightly loose?
We once had a fluorescent tube lamp in the upper part of a cooking
stove that also buzzed, we rarely used the lamp anyway; seemed to be
more of a dress-up item than much practical use. Later found that one
end of the small ballast, which looked much like a small transformer
was secured by one sheet metal screw, while the other end was just
tagged slightly loose into a metal slot. Cheap factory labour saving
construction? Twisting the tag stopped the vibration; took all of five
minutes. Kept the ballast somewhere when we later scrapped the
stove.