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idea needed for a simple, automatic voltage regulator for 3V LED

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crutschow

crutschow

Joined Mar 14, 2008
38,543
AnalogKid said:
If the train is expected to run backwards with the light on
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The TS statement below leads me to believe that each light is only lit for one direction, so a bridge is not needed.
meehow said:
yes! these are directional lights. only one end of the locomotive is supposed to be lit at any given time.
the entire 'setup' has to be doubled for opposite polarity taking care of another end of the loco.
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