I have an 8th grade science class (I'm the teacher) that I would like to have construct underwater vehicles.  The kids will be using 9v batteries, switches and assorted other materials.  Does anyone know of any good books/articles that explain the basics of wiring, electricity, motors, switches, etc.  that I can have the students read to get a good base of knowledge in the basics of electronics? Thanks!!!

Ok, I recently purchased a Go-Ped for practically nothing, and I really, really, really want to fix it up. I want to mount a couple of LED powered bicycle headlights on the front, and a tail light on the back. However, I want to be able to turn them all on and off via a single switch, mounted to the handlebars.I know very little about wiring, but I do know that most bicycle lights require physical pressure to power them on or off. Maybe there's something that can go between the batteries and bulbs?Any input you can provide would be fantastic!-Ryan

Ok i was wondering if i took a microphone that was real cheap from walmart and take the male part off the end of it and put a female part so that way i can plug in a dual male sided cord to it and then to my computer, more or less im wondering, can it work like that? and then i was wondering if there is a program that when i plug the mic in that it works like plugging a guitar into an amp, as in it plays the input to the computer outloud without being in playback from a recording

Hi All. I'm a believer in the idea that anyone can do anything with a little info. But I'm in need of a little help.  I'm building a dollhouse for my niece and would like to add a little higher-tech slant (she won't be playing with this for a few years yet...)  I would like to add LED lights (which I will make but just have to wire for at the moment), a flicker fireplace and a door bell all on wall mounted pushbutton switches.  Feel free to suggest anything else that might be cool for a kid... The whole system will run on a 12V adapter but since I need to wire this NOW so I can continue to build, I need a drawing or schematic of how to do it. I've attached a pic of the house and have been pulling apart some of the small flicker Tealights to kitbash into the fireplace.  I have a number of white LEDs with which to make the lights but they don't have to go in right now.  I know I'll need some resistors - where do I place them?  Hide them in the walls?  On each switch? Anyways - any help is so appreciated.  She'd never get anything like this unless I made it for her - I just want it to be so cool that her brothers are impressed! Tbird

I am rewiring my guitar, and on regular single-coil pickups, there is two wires, but on my humbucker, Three wires come out, a ground, a white and a red. and all my schematics have nothing to say about three wires being soldered. and i have a five-way switch, with eight hubs. i just dont know whereabouts to put the third red wire. please help

Where can I buy some whisker wire? I am building an OAWR and I cannot find whisker wire anywhere! please help!!!

Hi if you do poi wid fire wire it looks so kool

I need to run some wires from the axel of my car to my rims, and i need to know how to have it so the wires can spin with the wheels, is there any way to do this?

I have new Li-ion batteries for my mac but i wasn't completely sure on how to wire it up to the old circuitry. I know that "vg" is the ground and the "vp" is the positive. I am assuming "vl" goes to the wire "vl" i dont know what that is thought.  But there is a "vh" spot on the new battery but on the old circuitry there was no wire going to there? Do I solder that wire there? There is also two very thin wires labeled ntc, i can not find a spot on the old circuitry for that is it necessary?

How do you wire amps to speakers and a headphone jack?

Need wiring schematic for old Turf rider 4 golf cart, 36 volt, GE motor

I have a schematic that says i need #16 wire to make an inductor, how do i find that size, what is the translation in mm? if anyone finds some could they give me a link please. thankyou

How can I make a wire transistor? It needs to work quite well and has to be stable. Please help either with a picture and description or a schematic. Thanks to you guys in advance.

Http://www.lobzik.pri.ee/modules/news/article.php?storyid=790L

When I visited MITERS last month, someone was giving away their entire collection of Wired Magazine. I happen to have a current issue in my bag, and it was fun to compare their relative sizes. It's interesting that I also happen to be wearing a Digg shirt in the picture...

I have a broken microphone. Its wire is cut  inside the insulation. i want to replace the entire cable. when i removed the plastic cover of the microphone i saw a red and a black wire soldered to it.  Therefore it uses only 2 wires but in the connector it is a TRS one not a TS one. i will also replace the connector.  i am wondering how should i wire a TRS connector which has 3 leads. one being the common ground. but the other 2.  should i short them out and connect the red wire or must I connect the wire to only one lead?  Then if i buy a $0.2 TS connector and i wire it accordingly. will it work? One another question does the microphone device has polarity that is should i connect  positive to positive and negative to negative lead. because there is no indication on the Mic?

Hi , i need to wire a small joystick extracted from a toy remote control. It is life a ps2 joystick. it is working with 2 potentiometre. if you can make a picture It will be very nice

So I was trying to do some wiring with headphone jacks, and i must be doing something wrong. I have a speaker that the cord ripped from, and I wanted to attach a new jack, I cut off and stripped both wires, so there was a copper one and a colored one, why dont they work when they touch each other?

I purchased some XCam2 cameras, They are hard wired. Due to the need where to locate them, I would need them to become wireless. This is a great site along with some great minds. Thank you all for your input.

Cutting open transformers (you might call it an adapter, or charger) yields a good quantity of re-usable magnet wire. Motors don't seem to be a very good source, since the windings on those seem to be saturated in varnish to glue em together. Apparently, vibration is more of an issue in the motors, so they make the windings solid. This might be different in little hobby motors. Dunno.

I got some nichrome wire off eBay, and it works great but when I connected it to a 9 volt battery it barley got hot, then I attached it to 4 x AA batteries and it got red hot. why is this? I don't understand because the 9 volt gives out 9 volts(duh) , but the 4x AA batteries only gives out 6 volts.

So I'm working on a heart sensor, and pulled out the wires. I think I can fix it with a  little bit of solder, because after 20 or 30 minutes of negotiating, i can usually re-establish the connection to the sensor. But I tried just now, and it isn't working. Help??

Hi everyone. Long time visitor of Instructables, made a few items I've seen and my most recent project was adding a star power pedal to my guitar hero controller. I bought a audio extension cable with a male and female jack, 1/8th size. I cut the cable about six inches from the female end. I stripped about an inch, inside was a bundle of copper wire wrapped around a clear insulted wire. I twisted the exposed copper wire and tinned it, I stripped the clear housing and twisted it, tinning them as well. I tinned the exposed wire to the GND, and the clear to Select. Positioned the jack and everything went well. I took the male cable, connected it to momentary switch and connected the male cable to the female jack. Turned on the system and controller. Got star power and hit the switch with no response. I'm very confident in my soldering and know I did it correctly, so I was wondering: 1) Are these kind of cables capable of doing what I intend? 2) Maybe the GND or the Select button are shorted out on the board of the controller? Thanks for any help everyone!

Im working on a fireworks show and i just bought 25 toggle switches and led's from a garage sale for 5 bucks.. never opened still in packaging. how would i wire all this up to show when its armed a light would show on each channel.. im using this thing to ignite the bigger fire works (2 per switch)... i got around 360' of extra red insulated wire laying around from the shop i work at in the summer becasue they are throwing/giving away. any advice i also got a few rca and 1/8' male and femail jacks and a few push buttons from salvaged things... could i also use the thingys from cameras that put out 330 volts i have a few of those. you can contact me on meesenger also at:deer_hunt05@hotmail.com

I have disassembled an old vacuum cleaner that runs on 240v/5amps/1200w. I wanted to obtain the electric motor that should perform at 1.5 horsepower. As I was taking it apart I forgot how the switch leads were originally configured. I want to give the motor a test run but I don't want to hit the fuse in my house so I was hoping someone can help me plug the switch in the normal configuration. What order do the brown and blue plugs (that comes from wall plug) fit into the switch? And what order do the blue plugs (goes to motor) fit into the switch? A silly question really but I am new to working with electronics.

Hi guys I am need of some advice and help if possible, I will try and explain as clear as I can. I have a lockup which I have modified to use locking bolts on a motor and I have a swipe card reader and pcb which when swiped it fires the output to power the motor (6v) which works perfect for 6 seconds of the locking bolts going in and out. I am looking for a way so when the locking bolts go to the locked position it hits some kind of limit switch and stops there (which I have done in the past) but then I want to be able to swipe my card to open the bolts and when it gets to he open position it hits another limit switch and stays open until I want to swipe and close the locking bolts. I don't want this to be timed I need this to stop on open and closed position but able to operate when either is pressed, Can this be done in anyway?

AI have a millermatic 211 which is a multi-voltage welder which I will be bringing to the Philippines. The adapter plugs are 5-15p (120v), and 6-50p (230v). Philippine electricity mains when I live are 220v single leg, with neutral. I am adding ground to both the Main panel and sub panel when I arrive, as most residential homes with a 2 wire system do not have them installed. According to the welder schematic  6-50p adapter configuration shows white, red, and green (ground) so goingfFrom a 3 wire US to 2 wire Philippine system is it proper to wire L1 to red, neutral to white and green to ground? 6-50 receptacle does not seem to incorporate a ground in typical installations????

Usb cable. and no there is no black wire

Hi guys, i need your help! I have an Enermax 12cm fan (EB122512H), i need to plug it to a 12v DC power supply but i don't know how to wire it; The fan has 4 wires (yellow, black, white, red) but the power supply has just two wires. could you help me?

How can i wire a 2 wire servo into a 3 wire receiver I'm talking about the motor type, The reason i need to do this is because i need to get a cheap RC car on good radio gear

I need help with a car subwoofer, i have a friend whos red wire went, and doesn't have a power antenna akak a blue wire. his red wire went, its a 2000 buick and the cars are notorious for that issue. i have it on a switch for the 12v and i have a jumper from the 12v to the remote so when the switch is flicked the remote and 12 v are powered. is there an alternative wire to connect the remote to besides the red or blue?

I was planning on doing some work with EL wire, but I didn't want to use a battery powered system.  I wanted to be able to plug the whole thing into a wall outlet for power, because I thought that would be nice and convenient and all that, but I had some questions: 1)     Would I need to reduce the voltage of the outlet first?  It's a standard 120 volt outlet. 2)     What components would I need between the outlet and the wire itself to make it work? 3)     What length would of wire could I expect to light with this setup?  What is the limiting factor? I'd appreciate it if anyone could help me.  I haven't ever tried this before, and haven't really explored EL wire before.  Thanks!

What is a good wiring diagram website. i knew one before but i forgot the link. you would give it information and it would give you a diagram.

I have a Philips Presenter SNP6000 part of the Battery Terminals are missing and I don't see where they're supposed to be attached, any advice on where to find a wiring schematic 

I am currently trying to complete a project but cant seem to find anything that would work for it. I am trying to make a system that connects to a wire and on the end of the wire is a resistor of some size then it comes back to the box im trying to make and displays a light saying 1. for wire 1. Then move to the next wire and check it and it would display a 6 for resistor system 6(different size resistor for each number) . Check picture for better understanding... http://img.skitch.com/20101031-fhnufcw7axk1kesj7g4yq1qfrd.jpg

Not really any

I want to wire a usb female end to my speakers so I can use the ipod connector instead of a 3.5 mm headphone jack, how would I wire it up?, the usb has 4 colored wires red, blk, wht, grn, and a bare wire. My speaker wires have 1 pos. and 1 neg.  So, how would I wire the usb to work?.

Hello guys i'm building my first drone using the arduino pro mini , i'm following this tutorial https://www.instructables.com/id/SpeechVoice-Controlled-Arduino-Drone/ on how to build it but i have a problem with the wiring , i've connect the battery to the arduino and also the hc-05 but i'm having problem with wiring the rest i've uploaded a picture of my wiring so far can someone please help me wiring the rest. http://imgur.com/dK4cRFy thanks!

Forgive me for kind of double-posting this, but I didn't get much response before. I put up a question regarding LED wiring here: https://www.instructables.com/answers/New-to-LED-wiring-could-someone-help-me-make-sure/Could I get someone to help me out? Again, if double posting like this is wrong, feel free to remove this thread. I don't want to cause problems, I just want someone who's smarter than me to help out :)Thanks!

I am wondering how to wire this microphone. I took it off an old kit and i am just wandering as it may come in hand. Thanks Oscar

So I just built a new garage and I want to make my own LED lighting for my work bench. I was looking at 1 watt luxeon leds and I was wondering if I need a resistor with those leds? I was looking on ebay and it said that the driver is already installed? I will run these with a PC power supply rated @ 800 watts will this work? Can anyone guide me thru this? Ive been looking on here and reading as much as I can... Thank you.

Prologue:  Please be gentle...once I get past V=IR and the "right-hand" rule, I'm lost to electronics.  But I can solder and follow a schematic. I have several (7) LED sets (each set = 10 LEDs with power pack containing 2 AA batteries, switch, and resistor).  Each set of LEDs are all the same color (if that makes a difference). Image attached. Question:  Is there a way to connect all LED sets to operate with a single switch and maintain each set with it's own power supply? On a lighter note, I'm building a project for some pre-schoolers and want to hide all wiring and switches from those "inquiring minds" and "wandering" hands. Thx in advance. Paul D

Hi, I've recently bought a Clarke Induction Motor with these specs: 230V 1 Phase 2 h.p. 1.5 kW 1330 rpm 50 Hz 9.4 Amps Capacitor Details: 50 micro Farads 450 V I have been looking all over the internet on how to wire it up to go into 240V mains (UK) but I can't find a thing. In the terminal box there are 6 terminals labled V1, V2, U1, U2, W1, W2. A brown wire connected to U2 and a blue wire connected to W2 lead off to the capacitor.  A red wire connected to V2 and a white wire also connected to W2 leads off into the motor. Another red wire connected to V1 and another white wire connected to W1 also lead off into the motor. Nothing is yet connected to U1. Please see the pictures which make this a lot clearer. (I have removed the capacitor from the blue catch for the photos) I have looked all over the internet and there seems to be no mention of anything. I basicly need to plug this into mains (therefore 3 wires, live, neutral and earth - obviously earth goes to the motor casing) So which wires go where? Also, the website of the shop that I bought it off said that a 10-16 Amp starter is required. What does this mean/do? Can you just plug it into the mains without this starter. It is probably obvious that I am somewhat of a rookie in motors! Thanks very much in advance for any help!

First time forum poster - Hi everyone. I've just purchased a picoPSU 120 (attached pic) for a custom build and it just arrived today. The DC power arrives through 2 cables (duh :), a black and white one.  For - I'm guessing - extensibility reason, the DC cable is cut in 2 half with a 4 Pin Male/Female connector. On that connector, there's the two cables coming in, and the two cables coming out on the other side - all good. But then (as you can see in the second pic) they also do a weird cable loop of the two cables using the spare input/outputs on the connector. Why is that? I don't quite get what it is meant to do.. ? Ben

I have seen beginner electronics projects but most of the things that they make arent really functional theyre just kinda display things like led throwers or custom made circuit board. I want to learn electronics but not by reading a guide but by doing the diy projects that create electronics items that are functional....does anyone know of any?

I'd like to hook my ipod up to these speakers but I don't know if my ipod wil get fried. I'm going to take headphones, take off the buds, and attach the wires to these big speakers. Can someone tell me if I need a regulator or something to stop my ipod from becoming toast?