Electric Instrument

So I am a big fan of music, making and listening to. i like to make instrument also because i like the though of making something pleasing to the ear with my bare hands. I also am interested with electronics. So in conclusion i thought i would make a thread were you can post you ideas and answer questions about audio based technology

Topic by g-tech   |  last reply


How to Save Electricity

Saving Electricity: How to Save Electricity Welcome!I've always hated "How-To" guides which don't explain why a certain tip works, or how well it works. Sometimes a topic is just as mysterious after you read the guide.My guide is different.In all honesty, this guide is a bit simplistic, but it does have a nice description of why there's no point to worrying about surges when electronic devices are powered up.

Topic by ewilhelm   |  last reply


electric car conversion?

Me and my dad are going to a junk yard to pick up a 37 packard and a 65 mustang and we are going to make them electric but only one problem neither of us know how the electricity will power car to move i dont understand that if you can give an explantion or even better a diagram showing how to do it it. thanks alot guys.

Question by DELETED_JAZ97   |  last reply


electric house windows

If windows could be closed and opened automatically, it could extensively help regulate inside air temperature- a big boon to those of us with no AC. Coupled into a remote-control house, it might reduce electrical consumption and/or increase comfort extensively. I am imagining an add-on to the type of windows that slide up and down; seems the type that opens with a crank would be very easy to retrofit, but they aren't very common, and not very insulating, in my experience.

Topic by whittey   |  last reply


electrical safety question Answered

1) how many 100 watt equivalent bulbs can i safely run into a normal heavier guage orange household extension cord? 2) can it be unsafe to leave the extension cord plugged in and powering the safest number of light bulbs on for days and weeks at a time?

Question by hobbssamuelj   |  last reply


Electric car battieries

Hello, I need some help. With gas prices getting to an excess of $3.50 in Texas, I have decided to make the switch to electric cars. I was watching a show on TLC the other day about a guy in California who converts cars to electric. He converted an old heavy-as-can-be Camaro into an electric car that could peel out. I found a website that sells conversion kits for all kinds of cars called Cloud EV. I want to buy the heavy car kit, but the only snag I hit was this: I need 60 batteries to get a day's power, but it will cost about $3000 to $5100 (1949.6978 Euros to 3314.48625 Euros)!!! Can anyone help me find a cheaper source of batteries? Car batteries are just to expensive. Thanks.

Topic by gimmelotsarobots   |  last reply


thermo electric fan

I bought an ECOFAN and want to know if anyone has figured out how to make one?I see computer fans online for as low as $19 that seem to run the same way.Heres one I looked at;http://www.tigerdirect.com/applications/searchtools/item-details.asp?EdpNo=1272112&csid;=_21Will these work?

Topic by olddawg   |  last reply


Build an Electric Car

Want to convert your car to all-electric on the cheap?  Check out bennelson's awesome Instructable, Build your own Electric Car!  Ben walks you through the steps of converting a Geo Metro (purchase price $500, gas-requiring parts sold for $550) to run on a forklift motor and 6 12V batteries.   According to his calculations, the car gets the equivalent of about 130 mpg.  Not bad for an entirely self-taught mechanic! Check out the video of his converted Metro going up hills: Sounds easy, right?  So when are you planning to convert your car or truck? This post has been sponsored by Pepsi. The Pepsi Refresh Project celebrates the people, businesses, and non-profits with ideas that will have a positive effect on our world.

Topic by canida   |  last reply


selfcontained electric car?

I had a few ideas on how to make more efficient cars. First off why is it we have NO generators being used while stuffs rotating. Take a small generator with a rubber drive point...like there a chain or belt would go... and place that on the tires. This is a friction driven generator which means that it would not work well in the rain. These...if done right... could keep the car running and then keep the battery charged. Using the battery only for stops. I also think we need to figure out a way to put a coil in the drive train somewhere. Making it to where when the car stops the coil is wound tight, when the car takes off again the coil could unwind and help the car take off. this feature added to gasoline engines would help cut the cost of gas greatly, not to mention emissions.

Topic by NativeSs   |  last reply


How to connect a bulb to a video door phone?

The video door phone uses four wires and it is connected with an 8 core cable, that leaves me with 4 free wires. What I want to do is connect a bulb somewhere in the middle of the cable so that when the doorbell is pressed the bulb is swiched on and off again when the screen switches off after about 8 seconds. Thanks in advance

Question by lonzu 


Can I connect a bulb to a video door phone?

The video door phone uses four wires and it is connected with an 8 cord cable, that leaves me with 4 free wires. What I want to do is connect a bulb somewhere in the middle of the cable so that when the doorbell is pressed the bulb is swiched on and off again when the screen switches off after about 8 seconds. Thanks in advance

Question by lonzu 


Electricity generated from speed breakers

Hey >  Well is dere any1 who can help me out ???  I need some suggestions on how to build a prototype of a speed breaker that can be used to generate electricity >>>>>  I just want to show how the concept works like >>>>  the few links below shows the concept :  http://www.youtube.com/watch?v=6tIMhWpLDfw http://www.youtube.com/watch?v=ClRTuDNJ5a4 it would be of gr8 help >>> if ny1 cld help me out in this matter >>>> 

Topic by ajitram   |  last reply


how to make electricity from temperture difference

Hi, One day I saw on Discovery a guy using a local stream to make electricity. really cool, he attached a light bulb to it and put that into layers of stone. by doing so, the stone heated and so he was able to cook on it. Basically what I am asking is, how can you make electricity from the local stream by means of temperature difference with the air temperature. TXS!!!

Topic by DELETED_amulder1   |  last reply


Make electricity from trash!

Hey, guys! recently I've published my FIRST instructable! It's a project to make electricity from biogas produced from organic materials. Check the link below to have more information: https://www.instructables.com/id/Cash-from-Trash-Make-your-very-own-electricity/ Note: this instructable is in the "green living and technology challenge" so if you like it vote for me!

Topic by baker amin   |  last reply


pumping water without electricity?

So I want to build an aquaponics system, because they're awesome, but I need a way to move water about 6' verticaly. I dont have elctricity where I want to put it, and there's not going to be. The water needs to be moved from the bottom of the fish tank, to the top of a resivoir tank. I want to buy the least amount of stuff possible for thisproject, so I could use some help:D

Topic by jakem456   |  last reply


Up-cycle an electric blanket? Answered

Our non-woven electric blanket has become unreliable and has been retired.    Is there anything useful I can do with the cords or blanket itself?  It's a lot of bulk to put in the trash.  The wires in the blanket make it undesirable as a regular blanket or quilt lining. 

Question by mole1   |  last reply


Mechanical vs Electrical Engineering? Answered

What are the primary differences between the two? Which is a more rewarding career path? Which major is better for someone who wants to get a broad understanding of engineering? Is it feasible to get a double major?

Question by Chikpeas Brother   |  last reply


How to build electric kiln

Hi Everyone I am after building a flat bed electric kiln, can't afford the 3 to 4 thou for a new one, any experts out there. I'd like the bed to be around 1000 x 500mm. thanks paul

Topic by paulrock40   |  last reply


Replacement electric razor foil

Does anybody know an inexpensive way to replace the surface foil on an electric razor? I think it's called foil anyway; it's the metal part that contacts the skin and is a mesh of small holes for beard hair to pass through. The raw foil stock must be relatively cheap to fabricate; maybe there is a way to get a sheet of it and put it on the original frame from the shaver. Most replacements are almost the price of a whole new shaver. And I haven't even found a replacement for my modified, ancient Braun system 123. After the shaver died I resurrected it and made it solar powered by tearing out the charge circuitry and batteries and replacing them with two batteries and a diode that plugs into a small solar panel from a garden light. This worked perfectly for years until the foil wore through last week.

Question by snotty   |  last reply


Electric Air Conditioner for SUV??

I live and work in one of the southern states that moves to a position approximately 100' from the surface of the sun in summer.  I unfortunately must spend time sitting and waiting at various facilities, sometimes for a couple of hours in my vehicle.  I have 120VAC readily available at all of the facilities, but usually no air conditioning inside.  I'd like to find a way to cool the inside of the vehicle without idling the engine.  Ice would not be a preferable solution.  Ideally, I would like something that can be put into the vehicle during the summer months and then removed during the cooler month we get.  I've thought about a rooftop A/C, but don't want to cut holes in the vehicle (I also don't like the look. It's a Suburban, not a camper!).  A portable A/C with the vent hose run out of a window would be one option, but I was hoping to find a more elegant solution...and one that challenged my technical abilities. :)  It's been in the 105 degree plus range this week, with no forecast for it to go below 100.  I want/need something that travels with me, sits in the cargo area of the SUV, and can (hopefully) just be plugged in to work.  It would NOT be used while the vehicle is moving.   Oh, and of course....I want to do this as inexpensively as possible! :)

Question by abideejay   |  last reply


How to heat a room without electricity or poisonous smokes?

I live in a place where we don't have constant electrical power nor heating burning fuels, I am looking for a way to heat the room to be suitable for winter living.

Question by hamzamasoud   |  last reply




I'd like to bring a European appliance to US and run on a 220V line in my home. Besides clock speed, any other probs?

Specifically, this is for an espresso machine - which has some motors and servos, but no clock. It's a lot cheaper here (I live in Europe right now).

Question by qubit   |  last reply


Would it make sense to draw power at night from the grid, and store it in batteries for use during the day?

I was flipping through Make:18 that was talking about energy use. I realized that some people include a large battery array in connection with their solar setup to provide power for their EVs, or potentially their house... So stepping away from that, could you take a large battery array, and have it store up power during the night, to use during the day? This would offset grid consumption during the daytime hours (when it's higher), and potentially lower energy costs (as drawing power at night is sometimes cheaper... although that would probably be negated by the battery array)

Question by aarone   |  last reply


Does anyone know how I can learn electronics principles without enrolling in a degree program? Answered

I always seem to have a need to fix or troubleshoot an electronic device and I want to learn the basic principles of electricity and stuff so I can: 1) avoid shocking the life out of me. 2) replace simple components without blowing stuff up or burning out components. 3) make the decision to do my own repair or to send an item out for repair. (Making more intelligent decisions regarding electronics without being snowed over by some repairman).

Question by geowulf   |  last reply


Star diagram and 3phase wiring?

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


Speed control for AC electrical motors

I want to use a GE A-C motor (5KC33GG101): Connection Type and Voltage Rating in Volts: 115.0 line to neutral single input Rotor Speed Rating in Rpm: 1725.0 single full load Frequency in Hertz: 60.0 input to run a 50' line on pulleys for a Halloween project but it's too fast. Can anybody help me figure out if I can buy/build a controller to run it slower?

Topic by mario-alonzo   |  last reply


Electrically conductive clear resin or additive?

I'm looking to craft some tiny 2mm buttons for a smartwatch face plate. I've got the design down, but I can't get the screen to register the presses. After some digging I learned enough about touch screens to know why. The buttons are going to be cast in a clear orange resin designed to pick up light from the screen below them. Does anyone know of a clear additive or resin material that can sufficiently conduct electricity over a distance of no more that 5mm? If you have any scraps of clear white or clear orange resin. Try using it as a stylus on a smart phone or tablet. If the screen registers the press, let me know please! Also, first time posting here, so bare with me if I have overlooked any sort of etiquette. 

Topic by rgorman4   |  last reply


100% of Electricity from Renewable and Non-Carbon Sources in 10 Years

In the best talk of the 2008 Web 2.0 Summit Al Gore called for president-elect Obama to make a man-on-the-moon-like pledge to generate 100% of the United States' electricity from renewable and non-carbon sources within 10 years. Al Gore is truly an amazing orator, and when he got fired up about the climate, renewable energy, energy independence, and how it could play a centerpiece of our economy, I got fired up and so did the rest of the audience. What really sent shivers down my spine was this observation: When Neil Armstrong first stepped on the moon, the average age of the control engineers running the mission from Houston was 26, making them 18 when Kennedy made his pledge in 1960.Generating 100% of our electricity from renewables and non-carbon sources in 10 years (let's call it 100-in-10) is the same caliber of challenge, but unlike getting to the moon -- which was something only a government could do at the time -- building a full economy of renewable energy should be orchestrated by the government, but requires the efforts of countless makers. I seem huge numbers of opportunities, both large and small, to make a difference and have impact. Get an engineering degree and invent a new type of powerplant, design and publish plans for low-cost DIY solar home heaters, be an advocate of renewable products and services. It's clear that a lot can happen in 10 years, and even if Obama doesn't call for 100-in-10, the time to make a difference is now. This is cross-posted on Makezine here.

Topic by ewilhelm   |  last reply


Creating Multi Source power to store in batteries and convert for home use

 I am planning on using multi source electricity producers to store in batteries and convert to 110/220 AC for home use. I am going to set up as many generators as I can, including solar panels, wind generators, water flow generators and heat flow generators. I am building an underground storage room for the batteries. What would be the best batteries to use? What do I need to be able to use my generators to charge the batteries (I am thinking I will need a separate battery charger for each battery, but what do I need between the generators and the chargers?) and then how do I convert the DC to AC and hook it up to the house? As I will be doing this a little at a time, we will be using electricity from the power company at the same time. As we save money on the electric bill with the power we supply, we will expand our own generation of power, until we no longer need to buy electricity. Thank you in advance, Michael C. LaMay

Topic by MichaelL255   |  last reply


How Do I Change AC hertz? Answered

So the one local power company has a complete monopoly on my city. I was thinking that this summer, I would produce my own power, and possibly give some away free to my neighbors. I am thinking that I will use solar steam generators to make steam that will power an array of Tesla turbines like those of mrfixits to generate electricity. The only problem is that the steam will likely push the turbines far above the 60 hz we use in the US. Is there any way to reduce the frequency without slowing down the turbines? Also, why does AC need a hot and a neutral wire to function? Isn't the whole point of AC that you don't have to send electricity all the way to the customer and then bring it all the way back? And are there any good i'bles on winding generators, magnets, etc.? Thanks!

Question by mad magoo   |  last reply


Is there a way I can utilize a Sunsei SE-150 Solar Charger 150mA Trickle Charger to power led lights?

I want to give light to my hydroponic food garden at night and possibly the small pumps.

Question by ecoego   |  last reply


How do I connect a wind turbine to a battery bank through a 1N1190A blocking diode?

Diode I have is seen here http://www.reuk.co.uk/40-Amp-Blocking-Diode-1N1190A.htmI am building the "Chispito" turbine, but I don't have the blocking diode they recommend, I have this one.

Question by groundhog593   |  last reply


Parallelized Wind Power

This started as a blog post on Make http://blog.makezine.com/archive/2008/05/parallelized_wind_power.htmlIt was suggested to head over to instructables and get some stuff going here and it seemed a good idea. Also, in the meantime I found (of course) a bunch of cool wind projects here (about 20). I really like the vertical Savonius turbines. I wonder if those could be stacked with a similar effect?I've been wanting to do a wind power project for a while, and it seems like a good one to work on with others. Here's a brainstorm to kick things off. Please add to it or suggest alternatives problems etc.- total parts cost < $200- leverage off the shelf parts as much as possible. - little or no machining.- over 100 watts, (ideally 300-500) (this could be totally unrealistic with a $200 price, not sure yet)- usable in small yards, urban roof topsThe guys who made the original did some research for a grant and the paper is available here: http://www.speakerfactory.net/TURBINES/GRANTS/Selsam%20EISG%2002-18%20Final.docAlright. Hopefully this is enough to kick off some discussion and gather up interested parties. I think the first step will be to tack down goals and solidify a general approach. Ideally in the end, we can come up with a good parts list from a minimal number of sources, and an instruction set that's relatively easy. A group might also leverage some purchase power by getting some of these parts in bulk (ie. a whole bunch of airplane props). Tim

Topic by timothy   |  last reply



Power bill sky high, hot water leaking. Is my overflow valve wrecked? Answered

I went to look at a friends house to see what was causing the electricity bill to be double the cost compared to last years.  What I found was that the hot water cylinder was (1) turned up too hot, and, (2)is constantly trickling out of the overflow pipe. This cylinder isn't vented through the roof, it has a pressure doohickey on the top that vents water direct to the drain outside.  Is there a way to check that the pressure valve is working ok, or just get a plumber to replace it?

Question by Gaark   |  last reply


Scat-Mat for a cat, made from scratch -- suggestions? Answered

I'm looking to make one of these myself. Any suggestions as to the power supplied to the conductive surface?Obviously, I want low enough power to not hurt my cat, but enough for her to choose not to sleep on the couch anymore!Thanks!

Question by Zibodiz   |  last reply


Pyrographics from heating element wire?

I wish to attach a piece of heating element wire to the two ends of a cord& plug directly into wall.  Wrapping the heating element in a pattern around a cane-stock; I will plug directly into the wall to burn the pattern into the cane. I'm not sure of size-limits for household 110 volt current. (I dont want the wire to burn up, or not get hot enough) Anyone have that info?  Thanks for your time.      

Question by smallludwig2   |  last reply


Automatic Standby Switch

I stumbled upon this little gadget...and thought I'd share it with you all. It seems like something that a lot of you could make pretty easily. The concept is simple, it plugs into the wall, and your device plugs into it. As soon as it detects your appliance/device is in standby mode, it cuts the power. Just a simple way to save the power that your junk sucks in when you're not using it. As NachoMahma pointed out to me, one big improvement would be automatic reset. Anyways, if someone wants to give it a shot, i'd love to see the instructable on it.

Topic by Weissensteinburg   |  last reply


how to build your own electric bicycle?

I have a bicycle I want to convert to electric. I have heard of ones that are pedaled and electric and the pedaling charged the batteries.

Question by maryoverton   |  last reply


How do I make an electric burner?

I need an electric burner that can easily get up to 185 degrees F.  How can I make a ceap but effective electric burner?

Question by Kalrag   |  last reply


Can a vacuum cleaner motor generate electricity? Answered

I have a vacuum cleaner motor that runs off straight AC from the wall. I think it's like 120 V AC right?.. anyways it's got a huge amount of toque and i'd like to attach it to a stationary bicycle and pedal it to generate electricity. I know all the instructables for this my only quam is the type of motor. I'm not buying one. This is what I have and furthermore I don't even know if it's like universal i guess they call them..I do know that it is a brushed engine (as in it's not brushless) by the way if you haven't caught it yet my electrical jargin is very weak. Thanks for any help you can give me.-Ask me if you need more info.

Question by cdubnbird   |  last reply


how to attach electrical box to lolly column? Answered

Is there a clamp, bracket, etc that I can buy or make to facilitate the attachment of an electrical box to the lolly column in my basement?

Question by dagdon   |  last reply


Is it possible to make an electric filter for aquarium at home?

 I had purchased an electric filter named sun-sun for my aquarium. Its not working now because of electrical leakage, i had purchased many filters previously but none worked perfectly! so i decided not buy another one.can anyone suggest me is it possible to make a filter using an electric pump at home? 

Question by chandu_v   |  last reply



schematic diagram for e200 razor electric scooter

I have one diagram for my scooter but it is not like the wiring . Is there more than one diagram if so would like to have a copy or find out where i can obtain one

Question by halfstep   |  last reply


Solar-driven Stirling engines for electricity generation

The "Picture of the Day" in today's New Scientist shows a solar power generation test using Stirling engines as the generators.

Topic by kelseymh   |  last reply


Are electric vehicles deadly dangerous to build and repair? Answered

A local high school tech class is converting a pick-up truck to electric and I got the idea that I could convert our Explorer, (the engine is shot) but an auto mechanic I met told me he can't get insurance to work on an EV due to the danger of the high voltage- this is disappointing to me because I could really get a lot of use from re-purposing this truck to a green(er) vehicle. Help me be more green!

Question by paganwonder   |  last reply


Advice for Building My First Electric Guitar

I'm trying to build my first electric guitar. I figured building a neck is not something that I want to get into my first time, so I'm planning on buying a stratocaster neck and fitting it to the body shape I've designed. I'm probably going to use 3 single coil pickups and a typical stratocaster 5 position switch. However, I want to have the gibson style bridge and knobs. Am I in way over my head for my first time? Does anyone have any advice on how to set the neck at the perfect distance from the bridge? I'm assuming I want to 12th fret to be exactly half of the length of the string, but I'm not sure. Also, if you have any other general advice, I would highly appreciate that.

Topic by saxman42   |  last reply