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It seems to me that about a year ago, someone (maybe Pete C.) described a
light pulsing system utilizing heavy duty flashers made for school busses.
They have to flash a lot of red lights when loading/unloading kids so the
loads are probably similar. It also seems that the flashers were a NAPA
product, if my memory hasn't completely fled. I think the NAPA part number
was listed too.

Might be worth a snoop thru the archives unless the poster of the original
message 'fesses up.

Incidentally, it might be easier on your alternator to arrange to have two
flashing lights, synchronized to alternate, so the load remained fairly
constant. Could be a bit interesting to figure out how to do it, but pulsing
a 100 watt load on a 12 volt system might, repeat: might, cause problems.

Dan Schaefer
N235SP


[There's an article in the October '97 Kitplanes with a schematic for
an alternating flasher circuit which works pretty ok.  Someone offered
to come up with an alternative schematic for me which would include less
parts and FETs that would run cooler but I never got the final results
from him.  If anyone feels like tackling the project, I'd still like to
see an upgraded version of what's in the magazine.     <Marv>    ]



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