692 posts tagged with electronics.
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I have some old electronic car keys. What can I do with them?

I have some old electronic car keys. What can I do with them? [more inside]
posted by morninj on Nov 12, 2011 - 1 answer

Miniature camera and transmitter

Electronics project filter: I would like to learn more about building a miniature camera and short-range video transmitter module. Please point me towards useful tutorials, vendors, and/or part numbers. [more inside]
posted by Behemoth on Oct 29, 2011 - 1 answer

High Power LED help.

Electronics help. I'm looking for a good informational/tutorial web site for working with high power LEDs 5 Watts and up. [more inside]
posted by Eekacat on Oct 23, 2011 - 11 answers

Where do I get electronics parts in Brooklyn?

Where do I buy electronics components in southern Brooklyn (or lower Manhattan)? [more inside]
posted by griphus on Oct 18, 2011 - 6 answers

What can a broken infrared remote control tell me?

Can I learn anything useful from the circuit board of a nonfunctional infrared remote control? [more inside]
posted by kelly42 on Oct 12, 2011 - 13 answers

Arduino music sequencer feasibility.

I'm making my first electronics project: a super-simple musical sequencer controlled by an Arduino and SNES Super Advantage. Can you help me out with some logistics/feasibility questions? [more inside]
posted by griphus on Oct 11, 2011 - 2 answers

Polarity unclarity

How to I tackle replacing (rear) car speakers when there's a special connector? [more inside]
posted by Blazecock Pileon on Oct 5, 2011 - 4 answers

AV equipment loans for the arts

How can I solicit electronic equipment for short term loan for an NYC art exhibition? It is affiliated with a non-profit and reasonably high profile, I have a PR kit ready but am having trouble finding the right contacts (at Samsung, Sony, or Panasonic for example). I need a monthlong loan of a flatscreen LED display and in exchange can offer PR opportunities, exposure to a sophisticated arts audience, and VIP performance tickets - a lot to offer!
posted by naaaaaaaaatalie on Oct 3, 2011 - 4 answers

New Television Questions!

Please Hope me select a new TV. [more inside]
posted by Danf on Sep 30, 2011 - 22 answers

How to soften a stiff, bendy electronic cable?

Pet peeve: hardened, twisted electronic cables that come with brand new products. How can you soften them? [more inside]
posted by falameufilho on Sep 26, 2011 - 8 answers

Looking for an wireless microphone system (lavalier style) that connects to a stereo minijack of a video camera.

Looking for an wireless microphone system (lavalier style) that connects to a stereo minijack of a video camera. [more inside]
posted by jeremias on Sep 16, 2011 - 3 answers

I want to get back into electronics as a hobby.

Calling all electronics hobbyist people: I want to get (back) into making electronic stuff -- noise-making stuff, specifically -- as a hobby, help me get started. [more inside]
posted by griphus on Sep 15, 2011 - 18 answers

downloads to tube tv?

Noob electronics. I want to connect the following units. A Panasonic (old tube type, but nice big screen) tv, DVD player, and my MacBook Pro. The tv has one input, the VCR many. Do I need a 'modulator'? But more important, is there a way to get my digital downloads to the TV?
posted by ebesan on Sep 11, 2011 - 11 answers

Where's my blu-ray-go-round?

What's the real reason Blu-Ray players don't come in multi-disc carousel configurations? [more inside]
posted by tdischino on Sep 10, 2011 - 12 answers

Can you help me find a specific digital video camera + wireless microphone combination?

Can you help me find a specific digital video camera + wireless microphone combination? [more inside]
posted by jeremias on Sep 8, 2011 - 2 answers

Goodbye CRT, hello world of confusion

After resisting the call of the flatscreen tv for an embarrassingly long time, my boyfriend and I are finally saying farewell to our twelve-square-foot CRT and taking the LCD plunge. After much research we've settled on the Samsung UN46D8000, but I have two special-snowflake hardware concerns. [more inside]
posted by firstbest on Sep 5, 2011 - 27 answers

Ignoramus wants to learn how to fix a DSLR.

I want to learn how to personally repair a Canon 5D with an internal power problem. What resources should I look into in order develop this skill set? I do not care that this is silly, uneconomical idea. I am also well aware of the fact that developing this skill set will not be overnight. [more inside]
posted by Sticherbeast on Sep 5, 2011 - 2 answers

How do I catalog all of my iOS apps in one place?

I want to put together a list of every iOS app I've ever purchased. And I've purchased a LOT. I know I can go into my account information on Itunes and pull purchase history, but it only displays in small 'batches' at a time and I can't cut & paste from there. Next thought is to pull it from Itunes receipts in Gmail, but I don't want to have to go into each email & cut/paste into another document. Is there any way to concatenate all the emails automagically? Is there another solution for this I'm not thinking of?
posted by mattholomew on Sep 4, 2011 - 7 answers

My Dream Bucket o' Bolts

Can you help me find an mp3 player with very specific qualifications? [more inside]
posted by herbplarfegan on Sep 2, 2011 - 4 answers

Can I keep my things safe and dry in a coffee can?

Is is safe to store flash media and other electronics in a tin? [more inside]
posted by piedmont on Sep 1, 2011 - 10 answers

BR2 Cable?!

I'm trying to identify a +- 10 V cable for an electromagnet power supply I recently purchased. The manual calls it a "BR2" cable but I can't seem to find it anywhere... [more inside]
posted by Aanidaani on Aug 30, 2011 - 1 answer

Non-Woofing Subwoofer in Need of Repair

Help me find a place that can do quality speaker/subwoofer repairs in the Los Angeles area. [more inside]
posted by Hairy Lobster on Aug 22, 2011 - 3 answers

All of the boys and all of the girls want to FPGA-me

Is there a way to directly download a coded configuration from an FPGA board to a computer? [more inside]
posted by kagredon on Aug 18, 2011 - 5 answers

Arduino

What are some cool things I can do with an arduino, Python and stuff I already have, with only a few new parts? [more inside]
posted by mccarty.tim on Aug 16, 2011 - 6 answers

Grundig majestic

1960 grundig majestic stero console. features include am/fm radio with world wide access; phonograph(top of line). Information on back reads"Musical Instrument 9098/usa. Magnificient piece of furniture in mint condition. I paid $ 2000 dollars in1960. what is it worth today. Thanks
posted by bcharles1941 on Aug 4, 2011 - 6 answers

Help me replace a blown woofer for a Spica TC-60

How do I replace a blown woofer in a Spica TC-60 loudspeaker? The datasheet is here. I am generally capable, but don't know anything about building/repairing speakers. Can I get away with replacing just the one? Is there any danger of damaging the crossover (whatever that is)? The very nice guy from Madisound recommended a ScanSpeak replacement but how do I know if it will fit and/or work properly? If I'm reading the datasheet correctly, the original seems to be 180mm in diameter, and the replacement he recommended 170mm - is this a good idea? How can I tell if there's anything else I should try? What, if anything, do I seem to be overlooking? Thank you!
posted by jcrcarter on Aug 3, 2011 - 2 answers

The (almost) indestructable camera

My camera fell into a lake. Yikes! Took it home, let it dry in a bowl of brown rice and now it turns on (Yeah!) but the screen shows the view as a monotone blob of something. Help! [more inside]
posted by alex_skazat on Jul 28, 2011 - 10 answers

Groovin' Poolside

Please recommend some decent outdoor speakers for under $200! [more inside]
posted by lovableiago on Jul 27, 2011 - 2 answers

Looking for a tool to reccommend a laptop configuration

Is there a tool online that might be able to tell me what parameters I would want for a new computer (probably laptop) given my current patterns of use? Looking in stores leads me to think I don't need the high end models but I'd hate to buy something only to find out I should have sprung for the extra RAM. [more inside]
posted by gilsonal on Jul 19, 2011 - 9 answers

Electronics makes me feel stupid

Being an electronics wizard, what do you wish you'd known when you started out? [more inside]
posted by run"monty on Jul 3, 2011 - 9 answers

PIR circuit to switch off door alarm

I am trying to build a circuit to turn off an alarm when a passive infrared sensor detects a human in a room. Yes this is a bit backward but it is for turning off a door alarm when our receptionist is at her desk rather than detecting intruders. I know enough about electronics to just get myself in trouble (which isn't much), so any advice on parts and construction would be excellent. Thanks!
posted by lake59 on Jun 21, 2011 - 8 answers

How do I run 20ish LEDs with a LED Driver built to run 1 large LED ?

I want to drive 20ish LEDs, should I run them as series or parallel and why ? [more inside]
posted by 70klicks on Jun 20, 2011 - 8 answers

Mystery Cell Phone Display Question

I was with a person that had an older style cell phone, I think it was an LG, but not sure. He was showing me pictures, but I was distracted with a series of around 10-12 numbers that were displayed on the screen, to the left and top of the picture area (not inside). They kept changing about once a second, each digit with no regularity. One would think that it may have been GPS coordinates but the numbers were too random and not changing in any particular sequence. What the heck was that? A tracking device? When I asked him what it was he very quickly deflected the question.
posted by ~Sushma~ on Jun 15, 2011 - 7 answers

Help me do the old USB switcheroo

I can't quite get to the bottom of a USB peripheral auto-switching circuit diagram. [more inside]
posted by le morte de bea arthur on May 17, 2011 - 13 answers

Help me rediscover an electronics project from Radio Shack from back in the '80s.

Help me rediscover an electronics project from Radio Shack from back in the '80s. [more inside]
posted by babbageboole on May 12, 2011 - 2 answers

LED lightbulbs are illuminating but not illuminating.

What is going on in LED lightbulbs? I mean the devices, not the industry. [more inside]
posted by chairface on May 11, 2011 - 9 answers

What could cause a USB mic to all of a sudden start picking up a hum?

My USB Mic started picking up an omnipresent hum all of a sudden. It never used to. Any ideas what could have changed? [more inside]
posted by JoeGoblin on May 10, 2011 - 10 answers

Now word on the street is y'all suckers (don't) want static.

Help me find a place to purchase this tiny car part for a Scion xB! [more inside]
posted by FatherDagon on Apr 22, 2011 - 7 answers

How can I be smart in buying smart pen as gift?

How smart are smartpens? [more inside]
posted by Postroad on Apr 14, 2011 - 3 answers

Exciting electronics video?

I am looking for an interesting or exciting video that would, in some small way, get Grade 7 kids excited about electronics or science in general. The video will be one part of a talk by Skype I'll be giving to a teacher friend's Grade 7 class. Ideally, the video would be less than 15 minutes and deal with electricity or electronics directly.
posted by sirsteven on Apr 8, 2011 - 4 answers

Broken plugs from an RCA cable are stuck in my amp. Help?

I tripped over an RCA cable connecting my amp to my laptop...and the RCA cable broke off, leaving the actual plugs stuck inside the amp. How the heck can I get them out? [more inside]
posted by Lutoslawski on Apr 4, 2011 - 16 answers

Remixed electronics: can I make a working frankenphone out of these two broken 6820 phones?

Help me identify a mystery component from the board of one of two damaged/crippled Nokia 6820 phones and determine if it's possible for me to get one working Frankenphone out of the two. [more inside]
posted by weston on Apr 3, 2011 - 6 answers

Where can I get a replacement A1242 transistor?

Where can I get a replacement A1242 transistor? [more inside]
posted by seanmpuckett on Mar 28, 2011 - 8 answers

Ideas for an exciting (and difficult) electronics project

What are some reasonably complex and conceptually interesting electronics projects that I can make for my class? [more inside]
posted by cognitio on Mar 14, 2011 - 5 answers

Stupid standby timer being all standby-y

I'm trying to interrupt a standby timer on a DVD player for a homebrew projector dowser project and I need some help with capacitors and resistors. I've wired a momentary switch across the eject switch terminals to pop the cd tray from a distance. [more inside]
posted by edbles on Feb 27, 2011 - 11 answers

need help sourcing material!

Where to source cheap LED strands? [more inside]
posted by puckish on Feb 21, 2011 - 3 answers

Circuit for headlight LED works, but I don't know why

It's been cold recently (-15C) and I burned out two bulbs in my dutch bike's headlamp in a short time. Since the bulbs are hard to find, I thought this was a good time to replace the bulb with a 1-Watt LED light. What I built works, but I don't quite know why. [more inside]
posted by kamelhoecker on Feb 20, 2011 - 9 answers

Nokia 2730 not working.

Today I bought a Nokia 2730; stupidly, I took the battery out before taking it home. Now, even though it says the battery is charged, the phone won't work. Help! [more inside]
posted by Monday, stony Monday on Feb 17, 2011 - 8 answers

Recommendations on synth DIY

I am looking for recommendations for DIY synth kits. I recently built the Weird Sound Generator and Voice of Saturn kits and am now looking for more to build. Does anyone here know of any similar noise-making PCB kits, or something else in general I should look into? Thanks.
posted by archivist on Feb 6, 2011 - 10 answers

How can I connect my TV (via my stereo system) to my wireless bluetooth speakers?

How can I connect my TV (via my stereo system) to my wireless bluetooth speakers? [more inside]
posted by lovableiago on Jan 27, 2011 - 1 answer

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