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Signing UpStep 1Gather the Materials
A Green LED and a Small Green LED
A Red LED
A pushbutton
1 Brwn Blk Brwn 100 ohms Metal film Resistor (small resistors will get too hot and will burn out!)
A Slide switch (on/off)
(Yellow LED optional)
1 1.5 AA battery and battery Clip
1 9 Volt battery and battery clip
Large Altoids Box
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