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resistor

  1. Halloween Props
    Needing a LED light for an owl that I will be lighting his eyes up with. The only LED bulbs that I can find at my Radio Shack are just the bulbs without the resistor already attached. What is the rule of thumb on this? I plan on running it with a little 9 volt battery. Is there a formula for...
  2. Tutorials and Step-By-Step
    Finally! We finished the first in what we hope will be an ongoing series: Electronics Essentials This first episode covers off LEDs... what they are, how to hook them up and, most importantly, how to figure out what resistor to use to have everything work properly without frying your LEDs. We...
  3. Halloween Props
    As most of you probably know, the "motion sensors" on many store bought props actually are some form of resistor that senses abrupt changes in light. The other day while playing with some of my store bought props, I had an idea that I'd like to use for next year. I would like to set up each...
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