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DIY Electromagnetic Flashlight


you’ve probably heard of flashlights

you’ve probably heard of flashlights that never need batteries or replacement

that never need batteries or replacement

that never need batteries or replacement bulbs this is too good to be true I

bulbs this is too good to be true I

bulbs this is too good to be true I really wanted to know so today I decided

really wanted to know so today I decided

really wanted to know so today I decided to build my own to start I bought an

to build my own to start I bought an

to build my own to start I bought an economy flashlight for a dollar 49 then

economy flashlight for a dollar 49 then

economy flashlight for a dollar 49 then I broke it down to its components after

I broke it down to its components after

I broke it down to its components after removing the Parts I didn’t need I cut a

removing the Parts I didn’t need I cut a

removing the Parts I didn’t need I cut a piece of 1-inch PVC pipe and wrapped it

piece of 1-inch PVC pipe and wrapped it

piece of 1-inch PVC pipe and wrapped it with insulated magnet wire next I found

with insulated magnet wire next I found

with insulated magnet wire next I found a rubber bouncy ball and split it in

a rubber bouncy ball and split it in

a rubber bouncy ball and split it in half to plug the ends of the tube before

half to plug the ends of the tube before

half to plug the ends of the tube before sealing off the top I placed inside a

sealing off the top I placed inside a

sealing off the top I placed inside a three quarter inch by one inch neodymium

three quarter inch by one inch neodymium

three quarter inch by one inch neodymium rare-earth magnet I used an open flame

rare-earth magnet I used an open flame

rare-earth magnet I used an open flame from my barbecue igniter to remove the

from my barbecue igniter to remove the

from my barbecue igniter to remove the coating from the ends of the wires then

coating from the ends of the wires then

coating from the ends of the wires then I hooked the exposed ends to my

I hooked the exposed ends to my

I hooked the exposed ends to my multimeter to test it out I was

multimeter to test it out I was

multimeter to test it out I was surprised that when I shook the tube it

surprised that when I shook the tube it

surprised that when I shook the tube it easily generated an alternating current

easily generated an alternating current

easily generated an alternating current of over four volts to prevent damage to

of over four volts to prevent damage to

of over four volts to prevent damage to the rest of the wire coating I wrapped

the rest of the wire coating I wrapped

the rest of the wire coating I wrapped some packing tape twice around the tube

some packing tape twice around the tube

some packing tape twice around the tube this also helped keep the wire in place

this also helped keep the wire in place

this also helped keep the wire in place and keep the tube snug in the casing

and keep the tube snug in the casing

and keep the tube snug in the casing next I drew up a schematic for the

next I drew up a schematic for the

next I drew up a schematic for the circuit I would need and I went to work

circuit I would need and I went to work

circuit I would need and I went to work soldering and twisting wires in place I

soldering and twisting wires in place I

soldering and twisting wires in place I use a rectifier I found on a junk

use a rectifier I found on a junk

use a rectifier I found on a junk circuit board to convert the AC from the

circuit board to convert the AC from the

circuit board to convert the AC from the shaker directly to DC I wired this to a

shaker directly to DC I wired this to a

shaker directly to DC I wired this to a five and a half volt one farad

five and a half volt one farad

five and a half volt one farad electrolytic capacitor that I found on

electrolytic capacitor that I found on

electrolytic capacitor that I found on the same board next I wired a rocker

the same board next I wired a rocker

the same board next I wired a rocker switch that I hoped would fit in the

switch that I hoped would fit in the

switch that I hoped would fit in the pre-existing switch hole and luckily it

pre-existing switch hole and luckily it

pre-existing switch hole and luckily it did I carefully packed all the

did I carefully packed all the

did I carefully packed all the components inside the casing and left

components inside the casing and left

components inside the casing and left just the two lead wires hanging out for

just the two lead wires hanging out for

just the two lead wires hanging out for convenience in changing out future LEDs

convenience in changing out future LEDs

convenience in changing out future LEDs i soldered an eight pin IC socket to the

i soldered an eight pin IC socket to the

i soldered an eight pin IC socket to the positive and negative lead wires then I

positive and negative lead wires then I

positive and negative lead wires then I hot glued it to the underside of the

hot glued it to the underside of the

hot glued it to the underside of the reflector and the fit couldn’t have been

reflector and the fit couldn’t have been

reflector and the fit couldn’t have been better

better

better to finish up I inserted a 10 millimeter

to finish up I inserted a 10 millimeter

to finish up I inserted a 10 millimeter white LED that I got at RadioShack for

white LED that I got at RadioShack for

white LED that I got at RadioShack for about three dollars I screwed the cap

about three dollars I screwed the cap

about three dollars I screwed the cap back on and done my very own shake

back on and done my very own shake

back on and done my very own shake flashlight I

flashlight I

flashlight I tested it out and was amazed at the

tested it out and was amazed at the

tested it out and was amazed at the results not only was the light bright

results not only was the light bright

results not only was the light bright but for just 30 seconds of shaking I

but for just 30 seconds of shaking I

but for just 30 seconds of shaking I could use my light for over 10 minutes

could use my light for over 10 minutes

could use my light for over 10 minutes well I guess that answers the question

well I guess that answers the question

well I guess that answers the question that yes you can run a flashlight

that yes you can run a flashlight

that yes you can run a flashlight without batteries as long as you’re

without batteries as long as you’re

without batteries as long as you’re willing to get a workout at the same

willing to get a workout at the same

willing to get a workout at the same time that’s another item for my

time that’s another item for my

time that’s another item for my emergency kit and it was a lot of fun to

emergency kit and it was a lot of fun to

emergency kit and it was a lot of fun to make I hope you’ve enjoyed watching this

make I hope you’ve enjoyed watching this

make I hope you’ve enjoyed watching this video as much as I’ve enjoyed making it

video as much as I’ve enjoyed making it

video as much as I’ve enjoyed making it thanks for watching

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