Parts needed to build Hand Crank Phone Charger

Question

I'm interested in building the Hand Crank Phone Charger that Ben built in Epsiode 10. Ben mentioned that you need a hand crank charger (obviously), a Zener Diode, and a 10 Ohm resistor. This is my first real electronics build, so I'm not sure which resistor and zener diode I should purchase. Any suggestions/links would be greatly appreciated so that I can start this build.

Former Member · Accepted Answer

no wattage won't. To be safe you can use a 1w but its more expensive. The flashlight crank is making AC electricity which is in amps not watts. I used a 1/2 w 10 ohm but its what I had in my tool box.

Former Member · Answer

NTE5116A Is available at some Fry's. as is the resistor. I could not see going mail order for just two parts. I also thought about adding a capacitor to level out the charger output, but then the circuit might not fit..

Former Member · Answer

the resitor is just a 10 ohm resitor, If you have a radio shack around, they would carry it. Just go in and tell them you need a 10 ohm resitor The multimetere, I baught a cheapy one from harbor freight for 3 dollars.

Here is a color code of resistors. You will be looking for a band code of brown, black, black and either a silver or a gold band.

They have the code and how to read the codes HERE!