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Discussion in 'Darkroom Equipment' started by jstraw, Oct 28, 2006.
Do they all do this? Is it a symptom of a problem?
mine doesn't hum, that all I have to compare.
Mine has a slight hum to it
Mine hummed...then light flickered. I was informed it is probably a bad bulb..I haven't replaced yet to confirm though.
I used to work in "pro" labs, and have been around any number of these things. They all hum, but some more than others. The one I have now hums, but not enough that I can't drown it out with the stereo. Dean
Thanks, folks. I'm not going to sweat it.
Any particular tune? or is it all modern classical LOL?
a loud humm means the ballast in the starter is going. It can be replaced. A low level hum is just the voltage going through the tube.