Capacitors depletion time?

Building a cap with 2x 500F what would the run time be running on LEDs?

Asked by dominick.j.pezza 3 years ago

why capacitors are not connected in series in filter circuits?

In a filter circuit capacitors are always in parallel not in series with the power supply. why

Asked by 8 years ago

470 uf cap 10v vs a 470 uf cap 100v? Answered

If the specs call for a 470uf 10v cap. Would everything still work properly with a 470uf 100v cap? What might change? 

Asked by WWC 6 years ago

adding flaps to a fur cap

Trying to add ear flaps to a fur cap and not sure how to shape it... any suggestions?

Asked by pwinbush542 8 years ago

Does anyone have a design for a ball cap display rack ?

I have 12 or more baseball type caps which i want to display in a way that the front panels are visible.  When hanging on a wall

Asked by jay oliver 6 years ago

how can i make your own caps for a cap gun?

You might say"why" but can i make my own caps and what are they made out of

Asked by mman1506 8 years ago

Beer cap gift ideas? Answered

I want to give my best friend a gift that somehow incorporates a metal beer bottle cap that has some sentimental value.  Does anyone have any ideas?  It can be anything (aesthetic or practical, I have no preference).  Thank you in advance!

Asked by SirNoodlehe 2 years ago

how to make some thing intresting out of a beer cap

I need something cool to do with beer caps cause I have so many.

Posted by balls to the wall 9 years ago

what can I make from beer bottle caps (other than a rattle instrument)?

I, for some reason, save these things, and I have a lot. Is there anything that's at least a little functional, other than a noise device, that anyone can think of using them for. I hate to throw them away. Something that serves a function would be great! Thanks

Asked by aeneas shrike 8 years ago

uses for a 40uf 450VAC capacitor?

Hey there recently came inot posession of a largish sized cap, not very strong, but im sure ill find a use for it. Any suggestions? thanks.. AMule

Asked by AMule123 6 years ago

How do you perfect bottle cap necklaces...

My daughter and I are trying to make some necklaces for her friends.  We are having 2 problems that are occurring.  1. after we glue the picture inside the bottle cap.. we wait about 10 minutes to let glue set then pour resin on top... after several hours of the resin starting to dry  the pictures start to lift up.. 2. we are having problems with the colors bleeding.. espicially if there is white involved... the colors seem to dull! How long does it normally take for resin to set? Please help! Thanks so much! Mom and Katie!

Asked by purepanache 8 years ago

Does a tesla coil need to be DC? Answered

Just a quick thing that I am not sure about for my tesla coil, does it need to be powered with DC current?

Asked by 6 years ago

What does "Fi freq comp" mean in IC TA7313AP ? Answered

Hello , ia have a question about the IC TA7313AP . This is the IC's pin : 1 : Hi freq comp 2 : Input 3 : Feedback 4 : Hi freq comp 5 : GND 6 : Out 7 : Vcc 8 : Bootstrap 9 : Ripple Filter What does "Hi freq comp" mean ?? In datasheet file, they place a 100p Cap between pin 1 and 4 , what happend if i put a 1n cap instead of 100p cap ? Thanks in advance !

Asked by login721 6 years ago

How to fasten wheels on axle of a home made cart?

Have seen wheels at the local big box stores.. how can I use those?  What parts do I need.. axle, spacer, wheel.. and what holds the wheel on?   Son is wanting help on a project and I don't understand.   Are there kits somewhere that have 'all' the pieces?  Is there a vid with detail steps?  Thank you.

Asked by znetmac 6 years ago

How to make a blasting cap? Answered

How to make a blasting cap?

Asked by coolpizzadude 9 years ago

Could the ignition from a cap set off a firecracker or visco fuse?

Would the ingition from a cap (commonly used for cap guns) have the power to set off a firecracker of visco fuse? i have field tested other items. i know a cap can set off powder from a sparkler.

Asked by Austin0lsen 7 years ago

Replacing capacitors...?

I need to replace three 470 uF 25V caps but I was wondering if using 1000 uF 25V caps would work or not?

Asked by gr33ko 9 years ago

What would be the best way to to drill/press/punch a perfect 3/4" inch hole into a big bottle cap?

I would like to put a 3/4" inch hole into a big bottle cap so I can connect a water valve through the cap.  What makes this interesting is that the Cap is very thin metal, and because a valve with a rubber washer is attaching to the cap it needs to be a perfect circle so water wont leak out.  Plus, I would like to be able to mass produce this item (100 an hr), so the method needs to be quick, clean and reliable.

Asked by jarinator73 6 years ago

could i use this for a coil gun cap bank?

If i soldered all of these together would it work well for a coil gun. Thank you in advanced

Asked by rocket_man 7 years ago

Pop bottle caps?

I have been saving pop bottle caps for a short time now.  But with the amount of pop my wife and I drink I am going to have them coming out of my ears in no time.  So anyone have any crafting ideas to do with pop bottle caps?  One thing I thought of was to make a computer case out of them.  But maybe I have watched that video of the guy making an 8-bit Zelda case out of wooden blocks too much.

Posted by jcaresheets 5 years ago

Beer cap coffee table need hinges

So i want to make a coffee table/beer pong table.  like this So it is going to be 3' x 8' and i want to have 2 sets of legs underneath of it.  A short set for the coffee table and another set that are taller to use it as a beer pong table, or just a regular table for that matter.   So my main question is where can i find locking hinges for the Table legs?  I have found some, but don't seem to be very heavy duty.  I want them to be able to lock the legs in the horizontal position to hide them under the table while the other legs are locked in the vertical position. Also does anybody have any suggestions for cheap fiberglass or resin to coat the bottle caps.  Didn't realize how expensive the stuff is.  Cheaper is better.   

Posted by HICKFARM 7 years ago

BB firing flintlock mockup

Very long story short, I'm making a BB gun. I've got the basic ideas and mechanics almost done, its just a matter of making it work and materials. One of my big problems right now is that the gun will be .177, but it's going to mimic the look of an old flint or caplock muzzleloading pistol, which ranged from .36 all the way up to .80 in the largest ones. Obviously the barrel will have to be concealed within a larger, false barrel. My problem is making the real barrel attach securely without negatively affecting accuracy because it's off center. fitting the breech of the real barrel with a nut or a thread insert  has crossed my mind, but I'm not sure if It will be enough. pictured are some examples of caplocks so you have an idea of what the finished product is planned to look like

Posted by Bando_Red 7 years ago

Knex cap gun

I am going to make a knex cap gun that blows up up to 5 caps at one time.

Posted by Bartboy 9 years ago

Coke Bottle Caps

What can I make with a bunch of coke bottle caps?

Posted by grimfig 9 years ago

How do I make a Flash Cotton Flare Toy Cap Gun?

I wanted to make a cap gun that would fire flash cotton. I found a toy cap gun with individual chambers to each cap. I added copper tubes to load the flash cotton & fire out the muzzle of the gun. It didn't work. The first click & all the cotton I loaded went off at once. Anyone know how to modified a toy cap gun to accept individual cap shells, or how to make shells you can put caps in?  

Posted by elkaddalek 2 years ago

Is there a way to modify the hot-shoe cap to make it into a connector for a DIY flash?

More details: I mean modifying the hotshoe cap ( to become a connector for the camera to send a signal to light a DIY flash recycled from a disposable camera?

Asked by 8 years ago

What Are Some Fun things I can do with a bottle cap?? Answered

Any Ideas of things I can do with a bottle cap???

Asked by ExplosiveSillyPutty 9 years ago

what is a capacitor battery/battery capacitor?

What are batt-caps, how do they work, and how would 1 be wired to a 1.5v battery? what are some specific names of different batt-caps?

Asked by freenergyfuture 6 years ago

Bottle Cap Beads

Ok....  I have literally exhausted every avenue I can.  All I can find are already done bottle cap beads and their finished jewelry.  NO WHERE have I found the instructions on how to actually make the beads themselves.  I need help.  This is driving me INSANE!  Basically you take to bottle caps(and MAYBE you round em out with a ball peen hammer)  Then you weld? glue? them together and drill holes thru them.  I have hundreds and hundreds of bottle caps for this project.  All I need are the instructions to do this project.  I am begging anyone out there who knows of, or has made these please, please...  Write me here, communicate with me telepathically....  Something..  Anything!  I am begging my fellow Instructians for assistance! Thank you in advance!! Johana P.S.  I am posting a picture of what the finished things look like.  Some have the wavy edges and some don't   I don't care if they have one of the other.  I just need to make these guys!!

Posted by JosiePosie76 5 years ago

Does anyone here know about vintage hats/caps?

You know those caps they had back in the 20s and 30s, the ones where the top would kinda hang out over the bill, kinda like the one in the pic, but not exactly. Well, does anybody know how to make one? If you can make one, then please post an I'ble, 'cause I've been needing one for a while and can't find any. By the way, the one on the right is sideways, incase of any confusion. I was kicked off of Yahoo! Answers today. I never realized how much of a slave I was to them. You Instructables people are smarter. I am leaving Yahoo! I have switched over to my Gmail account, and I'm happy. I've asked about this cap on Yahoo, and never got an answer. But you guys/gals are smarter and craftier, and I can actually go a good while on here without calling someone an idiot, unlike Yahoo. Well, have fun crocheting, knitting or sewing a cap from the long ago(if you'd like to).

Posted by extremegtafan 9 years ago

Is it possible to salvage "Super/Ultra-Capacitors" from electronic devices?

I was just wondering if someone has ever salvaged a super/ultra-capacitor from some kind of electronic device? I it possible to even salvage these from something?

Asked by Yonatan24 2 years ago

how to get cap gun powder out of the cap?

I need to get cap gun powder out of an eight shot ring but it keeps exploding on me

Asked by cooptroop 9 years ago

Extra Electronic Components

I got an old DVD player, opened it up, and got: -11, 10vdc 47uf caps -6, 16v 10uf caps -5, 10v 220uf caps -6, 6.3v 470uf caps -2, 10v 1200uf caps -2, 16v 820uf caps -2, 10v 1000uf caps -2, 10v 100uf caps -100v 22uf cap -25v 220uf cap ( why is it brown/gold colored?) -Power regulaters (?) *says:C3852, 96 *says:C3852, 95 *says:C3852, 94 (has a heat sink) *says:STR, G6651, 95, 06 Thats about it. What can I do with these?

Posted by John Smith 10 years ago

Where can i get cheap caps for a cap gun that uses 8 "round" caps? Answered

I bought a cheap $2.50 cap gun and a 96 cap package. I used about half of them before i found a resonable way to ignite them. But still after it still works on a 50-50 basis. Now i'm down to one 8 "round" cap left. All i see are those "roll caps" and they don't work for mine. All i found on Ebay was the gun itself. I need a way to get more caps for my gun.

Asked by NYPA 8 years ago

What is a good way yo make a firecracker from caps, without needing to break individual caps apart?

Yeah, the title just about says it all. I have made ones that you smash with a hammer, but I want something that I can set off with a time delay (Fuse). Thanks!

Asked by I_am_Canadian 9 years ago

can i make a mini electric welder out of a disposable camera? Answered

Only for small joints not to be used, just as an experiment

Asked by sharlston 8 years ago

Hi-Cap horizontal magazine concept

Here is a concept I came up with a while ago. Basically, it is just a mechanism that allows a normal grey connector mag (I.e. One that would be used vertically) to be used horizontally, and so solving the problem of the low capacity of traditional knex horizontal magazines. However it is not without issues. The model used in these pictures is rather large, and there is an issue where the pusher cannot push the last connector out fully. Anyway, I thought I'd just I'd post this so if anybody is interested, they can use this concept and/or improve it so all issues are fixed. Just make sure to give me credit pictures: 1) overview  2/3)  overview of the mechanism 4) the red rod blocks the rotating mechanism so that no ammo falls out when not in use. Pull it out to initiate feeding

Posted by I.E. 3 years ago

Capacitor/wire problem... Samples?

I am making a coil gun(like the instructables). I have everything good right now. but i need a way to get about maybe 16 gauge magnet wire and capacitors free(like samples) I have been needing wire and any wire is welcome to me. For the coil gun does magnet wire work the best or do you need normal copper? I want to get these for free please. like companies giving free samples. please send sites.(need free shipping as well please) ausi

Asked by Ausi319 8 years ago

capacitor bank questions.

Hello all, this'd be the first post i've ever made, and may be in the wrong place....... edit- i guess it was in the wrong place, since no one replied.... so i'll try here.... i'm tryin to make a cap bank from 30+ flash cameras (possible? possible outputs? how do i calculate that?)  and i have some question/problems. is it possible to take a bank like the above and use as a spot welder?   if so, how would i trigger the spark without the trigger becoming the spark gap?  another possible use i have for it is a rail gun...... theoretically, if counter evidence isn't provided by all of you much more tech inclined ibblers a second concern is that the caps come in at least three different micro farad ratings. would one explode if it's rating is lower than the higher ones?  (the ratings are between 80ish to 150 ish (don't remember)) i rather need the weilder for a possible steampunk project that i just bought a bunch of metal junk for....(knowing me though, i'll never get around to doing it....)

Posted by badideasrus 7 years ago

Changing cap.?

Can i replace 4.7uf 160v to 10uf 160v.?

Asked by Elvisxian 8 months ago

painting a cap gun? Answered

I have a little cap gun, and i was wondering if its possible to spray paint, because if i were making a video, orange and green are ot so realistic

Asked by the poodleo 7 years ago