Reply to "rewiring battery operated ambulance and police cars"

AdriaticOGR Forum Member

Occasionally the toy won't like being fed from anything but a battery or SUPER clean power source, but most work on a wall wart or on track with a bridge rectifier or diode. Things with sound triggers seem to have the most issues.

E.g. My enigines passing close will trigger some.

Capacitors act to smooth an ac to dc conversation by BR or diode, closer to the constant output of a battery.

Mind voltage, leds especially don't like over voltage. Knocking voltage down, add a gen. purp. rect. diode inline(series), they eat .5 to.75v each.

4/9/2011:15 PM

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