20 Feb
2011
20 Feb
'11
11:17 a.m.
Chuck Guzis wrote:
I've been going over a small stack of failed T8
bulb solid-state
fluorescent lamp ballasts from about the mid 90's. They all have the
same failure and it suprised me.
Are they all from a quite narrow timeframe - i.e. is it possible that it was
just a bad batch with a manufacturing defect?
Or maybe external heat build-up has killed them, generated by nearby components?