Jameco Puzzler

in site by the machinegeek | 1 comment

In the above figure, what is the simplest way to light the LED when a ball strikes the bull’s eye? The catch: The game should not use a battery or external source of power. Check the Jameco site for the solution to this electronics puzzle.

This entry was posted in site and tagged , .

Comments

  1. J. Peterson says:

    Their solution says to use a piezo disk to generate current for the LED. Is this realistic? Seems like the amount of amperage you’d get out of a typical piezo disk would be too small to light an LED (at least an LED visible from a few feet from the target), but I’ve never experimented with one.

    I’d instead vote for some sort of solenoid-in-reverse for the target…

Leave a Comment

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

Notify me of followup comments via e-mail. You can also subscribe without commenting.