JM> Instead, the bulb grew quite bright over a period of about
JM> 1/2 second, culminating in a blown lightbulb and a $70 smoke
JM> signal from the inverter.
JM> What went wrong?:  I forgot to consider what I should have
JM> known!  That when the two sources were 180 degrees out of sync,
JM> the voltage difference would be 240V! ( [+]120V - [-]120V )
JM> -not the usual 120V that I was erroneously expecting. Dang!
JM>
JM> I should have used two bulbs in series.  Hmmmm..., or maybe I
JM> should have just watched a movie or read to the kids.
 Well, 2 lightbulbs would have saved the bulb. I doubt if it would
have saved the inverter, though. :(
 The inverter probably didn't draw enough current to heat the bulbs
enough to make their internal resistance high enough to drop enough
voltage to leave no more than 120 volts for the inverter.
 You might have gotten by with putting the two bulbs in series, and
connecting the inverter across one of the bulbs.
 Later.
 Robert
 * SLMR 2.1a * Careful, we don't want to learn from this.
--- RA 2.02+/GE 1.20 Pro
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