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could I use the capacitor in a disposable camera?
Yes, but it would be unnecessary. The capacitor is usually 50uF or less, and is 300V. You will only be generating around 3-5V, so the camera capacitor is pointless. I recommend scrapping circuit boards from AC adapters, and taking out the capacitor. They are usually 2200uF, and rated up to 10V. This will give you extra capacitance to store more charge, and go ahead and hook a bunch of capacitors up in parallel to get more capacitance! I did this and got over 8000uF from old capacitors I got from scrapping electronics!
thanks. because i have cameras in larger supply, i will just use a camera capacitor
Try not to go to Radio Shack, as far as I know, 3$ for an LED is bloody nonsense. I order online or go to a local hardware store, like www.taydaelectronics.com (I get LED's for 5 cents or less). I have a local hardware store "Harbor Freight", and they sell tons of rare earth magnets of all shapes and sizes for dirt cheap. I use these in my projects, and can pick about 20 small ones for 2 dollars. I recommend looking on Amazon or going to a local hardware store.
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