D
dstromb
- Jan 1, 1970
- 0
I was doing a search of diybanter when trying to figure out how to fix
touch lamp, and found this thread:
http://www.diybanter.com/showthread.php?t=37812
... where someone claimed it's possible for a light bulb to become
momentary short circuit while it's burning out. This sounds crazy t
me, but in the lamp I'm looking at, the triac is shorted and a trac
running between it and a wire that goes to the bulb is vaporized on th
circuit board. Only thing I can think of to cause that would be a shor
on the bulb side of the trace.
So, on that basis I guess it must be possible for a light bulb t
generate a short. But I can't understand it at all. Can anyone explai
how it happens? A little arc as the filament opens would make sense
but that's not the same thing.
I've ordered a replacement triac and will repair the trace - I'
guessing that will fix it, I don't find anything else that tests bad
touch lamp, and found this thread:
http://www.diybanter.com/showthread.php?t=37812
... where someone claimed it's possible for a light bulb to become
momentary short circuit while it's burning out. This sounds crazy t
me, but in the lamp I'm looking at, the triac is shorted and a trac
running between it and a wire that goes to the bulb is vaporized on th
circuit board. Only thing I can think of to cause that would be a shor
on the bulb side of the trace.
So, on that basis I guess it must be possible for a light bulb t
generate a short. But I can't understand it at all. Can anyone explai
how it happens? A little arc as the filament opens would make sense
but that's not the same thing.
I've ordered a replacement triac and will repair the trace - I'
guessing that will fix it, I don't find anything else that tests bad