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Charles Charles is offline
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Default Dimmer Switch: How to stop filament buzz?


"Thomas G. Marshall" . com
wrote in message news:jX%Bi.1431$tB2.636@trndny05...

I have a 100W globe style bulb attached to a simple 2-way dimmer. The
thing (the bulb) buzzes like crazy on anything other than full on and full
off. You can even see the filament flapping in the inert breeze.

Is there no way to fully remove this buzzing? I know a little about the
higher speed switching techniques involved, and I also know about the wave
deforming that some do. But is there not something foolproof? Seems like
something that should have been solved by now.


Triac control circuits adjust the phase angle of conduction. You can get a
range of control from near zero to near 360 degrees (full power).

Flapping in the breeze is, I suppose, due to the magnetic fields
interacting.

Yes, they (triac controllers) can buzz.

Short story ... another dimmer?