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682 posts tagged with Electronics.
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Gas oven control panel fried?

Is the control panel on my gas oven really completely fried after switching the breaker on and off? How can I prevent this in the future? [more inside]
posted by miyabo on Feb 28, 2015 - 2 answers

Collectible items damaged in international shipping. Liability?

My fiance sold and shipped some very expensive, heavy, one-of-a-kind electronics to an online friend overseas. They were damaged during international shipping. The purchase price was over a thousand dollars and the items are literally irreplaceable. Who is legally liable here? What are the ethics? We *cannot* afford to reimburse this expense. [more inside]
posted by Rach3l on Feb 24, 2015 - 17 answers

Monitor "fades out" slowly into vertical lines

I have a refurb monitor that's starting to go bad: the screen will fill with vertical color lines that don't change once they appear. Cycling the power almost always fixes it, but it's starting to happen more often. There are three boards inside - which is the likely culprit? [more inside]
posted by IAmBroom on Feb 16, 2015 - 5 answers

Remedial electronic engineering filter: how does USB charging work?

I'm trying to set up several micro USB charging stations in my house and car, and I'm realizing that I retain very little from 9th-grade Intro To Electronics. Set me straight on how current works? [more inside]
posted by foursentences on Jan 28, 2015 - 7 answers

What Kind of Glue Can I Use in Electronics?

So - I need to epoxy some wire back into a tiny plug. The old one holding it was whitish. Can I use regular epoxy or do I need some kind that it especially made for electronics? Thanks
posted by watercarrier on Jan 19, 2015 - 10 answers

Viable Electronic Engineering job - Product Development Engineer?

Recently got offered a new job in the area of electronic engineering (I think anyway!).... [more inside]
posted by b3vcard on Jan 18, 2015 - 3 answers

What's the cause of this electrical hum in my cheapo tube amp?

video of the issue, details within. [more inside]
posted by colin_l on Jan 16, 2015 - 10 answers

Arduino/Christmas lights projects for beginners

What are some good Arduino projects involving Christmas lights for someone new to microcontrollers? [more inside]
posted by DakotaPaul on Jan 2, 2015 - 9 answers

Good consumer electronics stores in South Jersey?

My mother-in-law's TV is out of HDMI ports. I need a switch and a cable. I can't order online-- I need to be here to set up, and leave early Monday. Best Buy/Radio Shack are last resorts. [more inside]
posted by Mayor Curley on Dec 26, 2014 - 5 answers

Will a japanese turntable work in the US?

Recently I found a good deal on a direct drive DJ turntable which was manufactured for the japanese market. I know japanese consumer electronics run on 100V while US runs on 120V. I have heard conflicting things on whether this would be an issue. It seems like the turntable would likely run but I have heard some reports that this difference in voltage might eventually damage it. Is a power adaptor a permanent solution to this problem? Is a power adaptor even necessary?
posted by bigspoon on Dec 16, 2014 - 3 answers

Electricians of AskMe: Help, my desk keeps shocking me!

A few months ago I moved into a new apartment, and decided to get one of these industrial shelving units - something like this to use as a desk/bookshelf/musical gear shelf. Everything works great, except when I plug my macbook into its charger and start typing. If my hands are on the aluminum body of the macbook and my wrists brush up against the metal frame of the shelving unit, I get a sharp shock, nothing too bad, but painful and annoying. [more inside]
posted by taromsn on Nov 30, 2014 - 6 answers

EarPods That Work

I recently purchased the Iphone 6 and love using it, but the EarPods do not work well for me. Help me find an alternative. [more inside]
posted by incolorinred on Nov 28, 2014 - 10 answers

Comparing Similar 7 inch tablets

Hi - I'm hoping for a bit of help comparing two similar 7 inch tablets that are on sale this Black Friday. [more inside]
posted by stewieandthedude on Nov 24, 2014 - 7 answers

HELP! HAL is in my IBM!!

I just picked up an IBM electric typewriter from a salvage shop. However, as you can see HERE, there's something a little bit strange going on. Any electricians out there who can give me some insight? Thanks!
posted by crazylegs on Oct 24, 2014 - 6 answers

PCBA Oy Vey

There are a ton of printed circuit board assembly companies in Asia. How do I choose one? [more inside]
posted by Dansaman on Oct 16, 2014 - 5 answers

Replacement knobs for old receiver - DIY or other?

I am thinking of getting a friend's old Realistic receiver (Realistic STA-65C, I think). I am not of the nature that I need an exact model replacement of the treble knob and am curious if there is a place online or a store like Home Depot or Radio Shack that might sell knobs that could fit or made to fit. I know eventually I may find one on ebay but don't need it to be a perfect match nor spend too much. [more inside]
posted by chicaboom on Sep 13, 2014 - 6 answers

Vintage Record Player Whisperers Wanted

I have acquired a gorgeous vintage record player, which I would like to either repair myself, or find someone to repair in the Chicago area. [more inside]
posted by shaka_lulu on Sep 10, 2014 - 8 answers

How to remove a superglued security base from my tablet?

I was given a tablet demo unit from my workplace because we no longer sell this model. It's functional and great, but still has the old security base attached. It's a circular nub about 1" thick that fits into the cradle of the demo pedestal, and has wires coming off both ends of the nub. I can cut off the wires, but the nub is superglued onto the back of the device. What's the best way to remove it? Photos within. [more inside]
posted by wintersonata9 on Aug 29, 2014 - 8 answers

I know what I want, but not what I need

ElectronicsFilter: I would like to construct a box with 4 lights that work on a timer. I know lots about software, and little about hardware, please help steer me in the right direction. [more inside]
posted by sparklemotion on Aug 24, 2014 - 13 answers

Simplest possible LED circuit?

I want to place small red LEDs into the eye sockets of local statuary. What do I need to buy? [more inside]
posted by LarryC on Aug 7, 2014 - 11 answers

What can I do with this expensive barcode scanner?

I accidentally received a free Honeywell 1911i barcode scanner from Amazon. It’s worth a lot of money. They said I can keep it or donate it. What should I do? [more inside]
posted by Ryon on Aug 6, 2014 - 11 answers

Stop trying to be smart, switch!

I have this USB DAC/headphone amp (which is great). I just started using the RCA outputs for a pair of powered monitors (also great). The problem is that the DAC switches between the outputs based on whether the headphones are plugged in. This makes sense, but it's annoying. I want to hack it and switch between them manually. Electronics whizzes, check my reasoning. [more inside]
posted by supercres on Aug 6, 2014 - 9 answers

help me cook rice

I inherited this rice cooker but cannot figure out what buttons to use to make regular short grain Asian rice. I thought it was the large one on the right but the rice is gross and uncooked yet soggy. Can you help? I looooove rice and need to remedy fast. Thanks for your help. Can you tell me what all of these buttons mean? I can't find a mode number so I can't look up the operating instructions online.
posted by dublin on Aug 3, 2014 - 11 answers

Looking for source for specific Foxconn HDMI socket or something just like it

Where can I find this Foxconn part (an HDMI socket) that appears to only be available in bulk from a distributor? [more inside]
posted by Venadium on Aug 1, 2014 - 4 answers

Good quality and cheap elevator touch-screens?

I want to purchase a few elevator advertising touch screens. You know, those interactive touch-screens that display all kinds of adverts and slideshows. Problem is, I don't know where to get them. [more inside]
posted by omar.a on Jun 20, 2014 - 5 answers

Need ideas on how to represent "computer" in tattoo

I have an idea for a half-and-half forearm tattoo (like this) where one half will be filled in such a way to represent computation, computers, electronics, artificial intelligence, something like that. Trouble is, I can't think of something appropriate that would work in a tattoo. Need ideas for this fill! Requirements and current ideas: [more inside]
posted by supercres on Jun 5, 2014 - 18 answers

Wet electronics

I just gave all of my personal electronics an (accidental) bath. Are they all ruined? [more inside]
posted by Snarl Furillo on May 30, 2014 - 21 answers

USA seller of "twin screened audio cable" or "two core screened cable?"

I need basically this. I'd rather order it from closer to home. My searches for this type of cable in the US haven't turned up anything, and I don't know enough about electronics to figure out what other names it might go by. I think it's a common type of cable so there must be something I'm missing. Thanks!
posted by univac on May 17, 2014 - 5 answers

What do I need to know to build a led art piece?

I want to learn how to build something like this. Starting from nothing, what kind of skillset will I need to acquire?
posted by pakoothefakoo on Apr 21, 2014 - 5 answers

come on baby write by fire

What device is to writing what the Kindle is for reading? Assume a Kindle is, for purposes of this question, electronic, single-purpose, efficiently designed, portable, small and stylish -- and not a tablet like an iPad or Nexus. The method of document storage does not matter.
posted by michaelh on Apr 17, 2014 - 9 answers

Where can I buy blank plastic boxes for electronic gizmo projects?

Where can I buy blank plastic boxes for electronic gizmo projects? [more inside]
posted by Dag Maggot on Mar 20, 2014 - 13 answers

Not that I'm going to do it or anything, but...

Is it feasible to take apart, modify, and put back together again a hair dryer so that it works in reverse, that is, become a small vacuum? I assume I would have to make the blower work backwards to become a sucker, and I would have to direct debris into a little sack and away from the blower and power source. If I were going to do it, what would I do? How much work would it be? How ugly would it be, assuming rudimentary skills and a home workshop? If it's impossible-- why?
posted by blnkfrnk on Mar 12, 2014 - 10 answers

Fun experiments with an electronics kit for a 7 year old

I would love some suggestions for science experiments with the Cambridge BrainBox electronics kit. [more inside]
posted by snarfois on Mar 7, 2014 - 7 answers

Fun with Impedance

I have some fancy new stereo speakers. I'd like to be as correct as possible when wiring them up, which has led to some possibly-unusual questions about speaker impedance. Halp! (Inside: Series or parallel?) [more inside]
posted by neckro23 on Mar 6, 2014 - 11 answers

Bringing our US electrical devices to the UK / also NTSC-PAL question

It's generally advised to leave as much behind as possible when moving abroad, but my wife's employer is paying to have a decent amount of our household stuff transported from the US to the UK. And why would we want to waste money buying duplicate items if it isn't necessary and we probably won't be staying more than a couple years? So I'm trying to figure out which of our electronics and appliances might be made to work overseas. I am aware of the voltage difference and the line/mains frequency difference between the US and the UK and I'm considering buying one or two good-quality step-down voltage converters for things that aren't universal voltage compatible. But I have some questions that my Google research has not cleared up. [more inside]
posted by theory on Feb 18, 2014 - 20 answers

Recommend a charging station

We have a ton of devices with different chargers and I am looking for a clean charging station that will hide the cord clutter but still allow us to charge multiple devices (with varying connectors) at once. Any recommendations? [more inside]
posted by echo0720 on Jan 15, 2014 - 5 answers

Thin, light, and 1080p laptop

I'd like a thin and light 1080p laptop. It does not need to be powerful, but it does need to be cheap. I'd like to spend about $300, but it must be under $500. The perfect machine would be something like a chromebook, but with a higher res screen than the ones I'm aware of. The resolution requirement trumps the thin and light requirements. [more inside]
posted by jsturgill on Jan 7, 2014 - 15 answers

What am I doing wrong with this wiring?

I am playing with an animatronic toy I got from a thrift shop. Before I started trying to hack it, there was a rocker switch that when pressed in one direction, made the head turn left, and when pressed in the other direction, made the head turn right. I have hooked this up to my arduino by replacing the switch with transistors, but the head now will only turn right. Without knowing exactly how the circuit board inside the toy works, is there enough information to figure out what I'm doing wrong? [more inside]
posted by lollusc on Jan 3, 2014 - 10 answers

Tablet piano instruction?

I have an electric, piano-weighted keyboard that I want to learn how to play. I can't afford lessons right now. It has MIDI in and out connectors. Is there a hardware/software combo that will take that MIDI out connection, plug it into an Android or iOS tablet, and provide a more interactive teaching experience? [more inside]
posted by jsturgill on Dec 23, 2013 - 4 answers

Need name of company in Richmond Virginia

Looking for the name of a company in Richmond, Virginia which makes electronics or radios and may or may not begin with the letter "C." [more inside]
posted by Ironmouth on Dec 17, 2013 - 13 answers

Arduino & other electronic project kits for a 10 year old boy

More gift advice needed! For a 10-year-old science geek with advanced computer and electronics skills for his age, I am looking for cool electronics project kits. He has an Arduino starter kit and has worked with that a lot. He has some soldering skills. He's into digital audio at the moment. He also has a Mac laptop and an iPad, in case it's relevant. Looking for things in the $75-150 range.
posted by spitbull on Dec 15, 2013 - 9 answers

How do I safely implement this one-off home electr(on)ics project?

How do I safely and (pretty) cheaply implement this one-off home electrics / electronics project? I have a low-wattage controller that will drive a high-wattage load having to do with the heating of water. I already have a GFCI extension cord that will stand between EVERYTHING and the wall outlet. The main complicating factor is that this is a single, custom-built thing so I need to use off the shelf pieces for a housing, etc. [more inside]
posted by Joey Buttafoucault on Dec 2, 2013 - 6 answers

AV receivers which split audio and video output

Are there AV home theatre receivers which do the following with input and output: [more inside]
posted by Blazecock Pileon on Nov 29, 2013 - 6 answers

Looking for a working Bakelite radio in the U.S

Aside from the standard stops ( etsy, eBay, etc ) where should I be looking to find a breadbox-sized, working radio from the 1930s-40s? Ideally Bakelite but not a deal breaker. Ideally shipping from the U.S? A period shell over modern electronics/cords is fine.
posted by The Whelk on Nov 28, 2013 - 8 answers

I think I need a UPS? If so, which one?

When the heater in my place (convector) cycles off, my TV goes black for a second or two. I worry a lot about what this is doing to all of the electronics using outlets in the same wall as the convector. Do you think I need a UPS, and can you guide me through the process? Details inside! [more inside]
posted by theatro on Nov 22, 2013 - 10 answers

Can I put a TV in my window so I can watch while I watch?

What are the downsides, or dangers to my TV, of putting my TV in a bay window? [more inside]
posted by Naib on Nov 18, 2013 - 7 answers

Ideas and advice for a DIY electric bike on the cheap.

For a long time I've thought that it would be a fun project to put together an electric bicycle. However I've been stymied by the cost and questionable quality of the existing kits, and the complications and compromises of the various DIY methods that are out there online. I have some ideas for how to go about making a cheap and simple electric bike, but I'll be the first to admit that I'm nobody's idea of an engineer so I thought I'd run some things by y'all and see what insights you have. [more inside]
posted by Scientist on Oct 29, 2013 - 12 answers

I want to learn about electronics, not plumbing.

What are some books (or other resources) that would help me understand electricity and hobbyist electronics without a hydraulic metaphor? [more inside]
posted by ddbeck on Oct 9, 2013 - 10 answers

Baby monitor from webcam? (portable screen connected to wi-fi?)

We have a foscam webcam with night vision and the works. We can access it via wifi on our phones and computers, but want a dedicated screen to use as a baby monitor. Portable and/or plug-in... what are our options? Thanks!
posted by Chris4d on Sep 22, 2013 - 5 answers

How to replace the audible alarm in a 9v water leak detector with an led

I have a 9v battery powered water leak detector (this one: http://www.glentronics.com/water_alarm.htm ). I'd like to open it up and replace the audible alarm with an led. How do I do that? [more inside]
posted by atm on Sep 19, 2013 - 5 answers

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