I have lots of designs i have not gotten around to building can i post the diagrams as an instructable?
Question by ishner | last reply
Hi i need anyone that can help me with this diagram,i think its okay,at least thats how i have it in a breadboard and it works,basically its a 555 timer delay on (5secs) and then the buzzers beeps reallly fast,seems simple but one bad conection and it wont work when the pcb arrives,(it happened already,)the not conected pins seems crazy maybe but it works i have everything in breadboard,i hope someone can help me please thankss have a great day :)))
Topic by NelsonN2 | last reply
I am making a life sized 'operation' game for a fund raising event. I am fine with construction and artwork, but need a circuit diagram for the electronics, can anyone help please? Doyou recall the kids operation game where you have to remove bones without causing the buzzer to sound or the red nose to flash? I want a circuit (battery powered) which when tripped by some one touching the probe against the metal edge will make the nose flash for about three seconds and also trip the buzzer to sound for about the same time. Any one know how to do this please?
Topic by batjonesy | last reply
Anybody know of a website with diagrams (as opposed to photographs) of superclusters and globular clusters? In particular I'm trying to find a map of M68, M30, and M5.
Topic by royalestel | last reply
I'm looking to set up a 12 volt system that has approximately 12 buttons that will each trigger an individual relay and a shared relay. So I will have 13 relays (numbered 1-13) and 12 buttons (1 -12) - Button 1 will trigger relay #1 and #13, Button 2 will trigger relay #2 and #13, etc. Wiring up a single relay circuit is easy enough, and I think I can set it up with an arduino or similar IC, but I'm looking for a discrete circuit design. Would a simple diode on each circuit leg be enough? If not, what would I need?
Question by chrispaccord | last reply
i am planning on making a quick release (like the one below). only one problem..... i don't know exactly how it works. can some one make a diagram showing how it works or make an instructable. i would like and appreciate any type of help but a diagram would be most helpful. thanks and well see what happens.
Topic by m5industriesinc | last reply
I know this is basic, but I'm not familiar with wiring anything that could potentially burn the house down so I feel its better to ask. I'm wanting to wire up three lights to go over my basement workbench to all work on the same switch. The image shows what I planned to do, was just wondering if there an expert out there who could tell me if this is going to be safe? Would 60 watt bulbs ok?
Topic by REDnumber5 | last reply
I am making a ps2 portable and I have some questions with it. First of all I need to know how to wire the batteries to the motherboard so could somebody give me a wiring diagram for my ps2? I want to remove the power board btw. also what batteries should I get (preferably li-ion). One more thing, can I remove the heatsink in turn for some thermal paste or extra fans? I have an scph-30001 model of ps2. Pease help I cant find anything for this anywhere else.
Topic by jasbear9 | last reply
We are wiring a windgenerator, 3phase? using the star diagram where the 3 coils are wired together, the next 3, and the next three as well. What I do not know is what to do after that. 3 wires tied into 2?? to go to the Batt bank. I am missing something and I do not know what that is or where to get it. Any ideas??
Question by dustyplans | last reply
I have 2 Limit switches, 1 6v DPDT relay, and a motor. By using a timer, I would like to reverse the direction of the motor when it reaches the respective limit switches. Can someone help me with my connections. I numbered all the terminals so you can just tell me 3-5, 6-2, etc. Thank you so much in advance.
Question by uamusa | last reply
Can any one point me in the right direction please. i'm building a mini wind turbine but i'm not sure what do do with the electronics side of things. for example: 1, how to charge a battery - (when i connect the battery it powers the motor! i dont want this,) 2, how to prevent over charging thanks zac
Topic by bede123 | last reply
It is being used in a magnetic pick and place machine using four bar linkage. The inductive switch is being used in such a way that if the metal ball will be detected in the detection area. the four bar linkage will move towards the ball where the inductive switch is located, and carry and transfer it to the desired area.
Question by belovebluesky | last reply
I am making a flashlight... I want the switch to power LEDs on one side when pushed in a direction and LEDs on a different side when pushed in another direction... heres a diagram of what I have so far ( that is working) http://img833.imageshack.us/img833/3292/instructables.jpg now how could I add another LED in there that would turn on when I flipped the switch the other way? Thanks
Question by davej6694 | last reply
I need some help translating this diagram to a small printed ciruit board I bought from radioshack. I've never done this before and wish to learn. I decided to build this lie detector for my science class science fair project and have all the necessary equipment, I just dont know like what row to put what and emitters, base, and all that good stuff. Please help. Thank you.
Topic by dwatord26 | last reply
Before i ask i must say that i am not a student dont have any school educational background but i do love to play around with electronic devices every now and then so i be direct if there is any expert in electronics i am tryin to built a circuit diagram which is actually an automatic switch over between two dc voltage supplies of 12volts and 30 volts for the same load.actually i want to run a dc fan first with 12 volt dc and after some time i want this 12 volts to be completely turned off and automaticaly starts running of off the secondary 30 volt dc and will run continuously then unless switched off manually
Topic by justakidlikeu | last reply
This is the light theremin from Make Projects http://makezine.com/projects/light-theremin/ It uses 4 AA batteries, so 6 volts. Can I use a 9 volt battery instead? If so, what would need to be changed in the circuit?
Question by rachl009 | last reply
As you may be aware, your reflection in a mirror appears to be behind the mirror. But, where is a rainbow? The Sun is over your shoulder, the cloud of raindrops is in front of you, but what is the apparent location of the rainbow? Is it between the observer and the water droplets, in the same location as the water droplets, or behind the water droplets (from the POV of the observer)? Or is it at some indefinably infinite location? I should know this... (a sketched-out ray diagram would be greatly appreciated)
Question by Kiteman | last reply
Hi, (I posted an image)I found this circuit in an book of mine because I wanted to build a VU meter. I only want to simplify this circuit. I don't need sound coming out of the VU meter; so I could have just remove the speaker and be done with it. But... is there anything else in the diagram that is only related to the speaker in which I could remove? All I need from this circuit is the led reacting to the audio input like a VU meter. Eliminating unnecessary parts will help me make it smaller. Thanks! Helpful things to know about diagram: Ignore R1, C5, U2.... those are just references to another diagram. 324 is an Operation Amplifier IC (there is only 1)546 is an Audio Power Amplifier IC (there is only 1)the Si is a silicon diodethe VR is a 50k ohm control volume (potentiometer?)6 volts going inIgnore the funny looking earphone, thats the audio input instead.I posted one General Image and 4 close up Images. Any other question about the diagram feel free to ask.Once Again Thank you for helping a newbie.
Question by Dmxspider | last reply
Fluorecent light wiring diagram:Could anyone help me with a wiring diagram for a fluorescent light, double tube, tube have 2 ins each side, two starters a capacitor and a ballast with two wires. I have all the parts but don't know how to join them together?
Question by Sa Wolf | last reply
Hi guys, I'm having a problem with Elta 8915 equalizer and I need help. When I hook it up on a radio and turn the power on, the lights on equalizer are on but not a single sound from it. When turned off the speakers are having a good quality tone from the radio and I can use fader on the equalizer. So, I either don't hook it up properly or it is broken. All the contacts seem fine to me. I do not have wiring diagram, and I've tried my best to do the proper wiring (there was no smoke so I guess I did a good job,haha). Is there any suggestion or the wiring diagram?
Topic by Izzy Panzer
I am wondering if this diagram would work or not. i am needing it to run off of 3(ish)volts and it needs to be small so i can put it on my palm zire 31 as a ir extender running off of sd card slot power. would this work? or would the other IR detector work? please help, anyone! thanks in advance, z247 ps: i didn't boher with + and -, but i do know how to hook it up
Question by zack247 | last reply
Hey guys, i urgently need to build a wireless circuit using a simple on/off electromagnetic circuit that would drop a metal object when the circuit is switched off. i have a 12V dc powered electromagnet as well as RF receiver and transmitter pair. the receiver needs to be fitted with the electromagnet and i would be using 4.5v dc power supply for the receiver using 3x1.5V button cells. Kindly help me with circuit diagrams and/or a list of other components such as generic IC/ timer 555/ resistors, capacitors, etc. which would be needed for me to build the circuit. Thanks a lot.
Question by him1703 | last reply
'Hello everyone,I looking to find an electronic schematic of a small LED flasher circuit thatflashes an S.O.S. light code. 3 short flashes, 3 long flashes, and 3 short flashes, than a 5 or so second delay, than repeats.Hoping to us a 555 timer IC.This is for a science project for my 14 year old.HELP! Thanks.Anyone?'
Topic by mark liles | last reply
Remember my inductor thread?Well, I'm getting closer to my project. The bulk of the device is to be based around an old transistor radio. I've got hold of one (a Phillips D1018/05, if it helps).Wonderfully, I opened the radio to find it has the circuit diagram stuck inside the back cover.Unfortunately, it's only half an inch high, so, I've scanned it.Now, I have a problem:The directions I am working with are vague:Try removing the Ferrite tuning coil and then replacing it with (another detecting component which I have, but if I name it the surprise will be lost) with a 12mH inductor connected in parralel.Spelling aside, I was happy with this, until I opened the radio and found that the antenna has four wires connected to it.So, I need a few answers:In the circuit diagram, which part is the ferrite tuning coil / antenna? I think it's part of the bottom-left corner of the diagram, but I need to confirm this.The four wires all disappear through the same hole, but one is stained blue and one red - which ones should I be dealing with?The component I am replacing the coil with is polarity-sensitive. The vendor was very careful to indicate the negative electrode - which way round should I connect it? I think I need to connect the negative of the component towards the bottom lead of the circuit diagram, but I want to make sure before I kill the component.I know these are potentially-noob questions, but this is my most expensive project so far, and some of the parts required subversion to acquire, so I don't want to mess it up.(If there's anything I've forgotten to ask / say, please let me know that as well. I'd rather not reveal the nature of the final project; it's not for a contest, but there's nothing like it on the site yet. If useful advice depends on knowing what the component is, then I will reveal it, but I'd prefer not to spoil the big unveiling.)
Topic by Kiteman | last reply
Hi, i have a genius usb mouse(Model "GM-03023U Made in china), its cable near the usb male end got cut off and i could'nt trace the connections back to the circuit board. It has 5 wires from the circuit board. the cable can be plugged off from the circuit borad and can be replaced with a new cable. but i can't find such a cable. so can any one help me how to solder the wires to a usb connector?
Question by jaga0692 | last reply
My wiring has ripped out in a few places on the board of the griffin itrip auto 2008, and i cant seem to find a circuit diagram anywhere online. i found one dead link, and the rest werent helpful (2010 models were posted). specifically, my yellow, orange and red wires on the button side have broken off. anyone know the order in which i need to resolder them?
Question by kamikaze33 | last reply
Hey, I am building a boombox and need 12 volts and 1.5-2 amps of clean rechargeable power, I can build moderatly complicated circuits so help me out please :)
Question by sdurham4 | last reply
Hey, I have two old USB cords form my iPod Touch laying around, and I took one apart to find that two of the wires simply pulled free of the part that goes into the iPod. I'm not willing to risk blindly soldering them back on and hopefully not frying my iPod to test it out, without at least a few tips as to which wire goes where. Could anyone help me? The four wire colors are green, blue, orange, and white. Orange and white are the ones that pulled free. Thanks :)
Topic by mojobo1
[SEE PIC...yellow wire=white wire, by the way] Disclosure: I am an electronic/electrical moron, keep that in mind. I bought this box lot of treadmill motor/controller/belt/5k pot/etc. in the hopes of building a variable speed wood lathe.This is how it was in the box. It seems right except I dont know whats missing (at lower left of pic). Black wire and Blue wire ends have female spade connectors. Connecting to what? If a switch, maybe, to each other, I cant see the AC volt is suppossed to connect to the DC motor. Again, what do I know. Thanks.
Question by Ramblin Man | last reply
I've been learning about robots and electronics for a while and can almost duplicate a circuit board if i see a regular picture of it, but I still have no idea how to read a daigram for a circuit.Anyone know of any legends that show how, or can tell me what all of the things stand for?
Question by INVADER SCOOGE | last reply
Good day honorable members pls can anyone help me i want to build an inverter and i need a circuit diagram for an 50Hz 24v to 220v sinwave inverter. Pls can anyone suply me with an circuit diagram for an 2KVA and a 5KVA inverter pls pls help me thank you in advance
Question by rahvin1223 | last reply