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]
Where can I get a replacement A1242 transistor? [more inside]
What are some reasonably complex and conceptually interesting electronics projects that I can make for my class? [more inside]
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]
Where to source cheap LED strands? [more inside]
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]
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]
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.
How can I connect my TV (via my stereo system) to my wireless bluetooth speakers? [more inside]
Cheap wall USB charger seems to interfere with iPod headphones, do I just need a better charger? [more inside]
I'd like to use a single 5mm UV LED (3.4Vf, 20-25mA) to charge a daub of glow-in-the-dark paint. It only needs to be lit around 1 minute of every 10 (or 6 seconds of every 60), and only when the (room) lights are out. What battery/circuit would be most economical to operate, and require the least-frequent battery changes? [more inside]
I am in search of a 3.5mm male-to-male coupler. [more inside]
vintage technology fi: help me connect a VCR to a TV [more inside]
What is the best way for me to sell (in the United States) an electronic device designed for the Japanese market? [more inside]
Recommend places to shop for cheap import electronics in Seattle. Think knockoff ipads, android tablets, unlocked smartphones, and other geeky gadgets straight off the boat from China...The kinda stuff you can get at sites like www.chinavasion.com
I have a lot of (old) ICs Integrated Circuits. (Also, crazy piles of capacitors and resistors, etc. but let us concentrate on the ICs.) Is there a website where an average citizen with these items can sell them to buyers? I fear they would just get lost buried or unseen on "ebay", even moreso on "craigslist". SeekIC.com seems like the kind of site I am after, but I would like to sell to buyers in the USA. [more inside]
My mother-in-law's old DVD player bit the dust recently and we would like to get her a blu ray player. She does not have internet and has a Magnovox 27 inch analog TV. She just wants to be able to view DVD and Blu ray movies. Any recommendations on a good, basic player?
My boyfriend has a Phillips 32" in flat LCD HDTV, that appears to be from 2006 or 2007. The screen seems to still be in great shape, but the speakers have developed an annoying buzz. Is it likely that the speakers could be fixed at a reasonable cost, or do we need to junk the tv completely and just get a new one?
What interesting projects can I make with my Arduino and scavenged radio parts or other household items? [more inside]
Can anyone recommend a good, inexpensive English-Spanish lexicon of TV/Cable/Broadcast technology terms? My sister does Spanish-language technical support for a large TV cable and Internet provider. She's first-language fluent in Spanish, but like many Spanish-speaking U.S. natives, leans heavily on Spanglish for many of the neologisms ("el remote") of the electronic age. [more inside]
Name this electronic component / construction technique! Found inside a late 1980s Datron 1081 bench multimeter. [more inside]
Recently, a friend's beat up old car was stolen the old fashion way - with a screwdriver to the ignition. This made me wonder about auto theft and newer, computer chip laden cars like the 2011 Volvo that I rode in yesterday. Has the computerization of automobiles led to new ways to steal cars? Basically, is there an car thief app for that?
Why does stuff disappear from Costco.com website without an out of stock indication? [more inside]
I finally figured out the perfect gift to get the boyfriend but am having trouble finding what I want. Help me navigate the world of diy audio kits with respect to guitar amps! [more inside]
where can i buy a dog door with a timer OR how can i make one OR is there somewhere i can commission such a thing? [more inside]
My 4.5 year old got to play with my friend's Ipod Touch, loved it, and is now adamant that Santa is bringing her one. This ain't going to happen. However, I would like to find her some kind of age-appropriate equivalent toy for Christmas. We don't do huge Christmas celebrations or massively expensive gift-giving, so this will be her big present, even if it's under $75. What can you recommend that won't make her ultra-disappointed (understanding that disappointment is a part of life, yadda yadda yadda)?
I need help parking in my apartment garage parking space. [more inside]
Does anyone make a thumb drive that plays MP3s? [more inside]
How can I wire a bass so that the volume and tone knobs are bypassed? [more inside]
Should I replace my MiFi with a hotspot-enabled Droid? [more inside]
Why does my TV signal disappear into static for minutes or hours at a time? [more inside]
I have a 5mW laser module. What do I need to attach it to to power it? [more inside]
Can I use my Kindle charger for my Blackberry Bold? [more inside]
Circular multi-segment LED displays? Who makes them? [more inside]
Where in Manhattan should I go to look at and possibly buy gadgets, electronics, and computery type stuff that would be hard to buy (excluding online) anywhere else?
Does a 120V AC -->12V DC power supply need an RF choke when used to power a small DC motor? [more inside]
Please recommend a "soldering mat" or other heat-resistant surface. [more inside]
I need an easy, yet cool-looking electronics project. In around one month, I'll be visiting Tokyo, including a day-long trip to Akihabara. Inspired by this post I think it would be really, really cool if I spent part of that day buying parts in order to create something electronic. Difficulty: I have close to zero experience with electronics. [more inside]
I'm going to travel a bit and might try to combine that with shopping. (a very novel notion, I know) Price-comparisons wanted. [more inside]
I'm looking for a digital picture frame that can play video and sound. I'd like to find something as close to 15 inches wide as possible. This is going to be used as a part of an exhibit, and must be no wider than 15 inches, total (screen + frame + anything else). There are no specific height requirements. Thank you!
My son got a 130-in-1 electronics lab for his 8th birthday and discovered digital logic from MacCauley's How Things Work. Now he wants to build a half-adder. Help? [more inside]
I have a friend who would like to learn the mechanics of building effects pedals for guitars. [more inside]
I need a little advice on an electronics project that I'm working on. [more inside]
The speakers are popping and it's driving me crazy. [more inside]
My son wants to DJ using a conventional amplifier and speakers, but with his car amp (Pioneer GM-D7400M) powering an 800 watt sub-woofer. This requires a 110 volt wall outlet converted to 12 volts. Can he use a battery charger, or does he need a larger, non-pulsing DC source, like an actual battery or DC power supply? Any other options/wiring tips? TIA.
I will be visiting London for two weeks or so in mid September this year, and I will be doing a lot of shopping. Since I have been recently working and living in Egypt, I intend to buy myself a new phone and some electronics, and maybe clothes. (electronics here are too expensive and not everything is available) [more inside]
When I charge my phone using a portable charger, the battery runs out quicker than if it's charged from the mains. Why is this? [more inside]
What is the best type of DLP projector to get for home movie watching? [more inside]
Does Las Vegas have good, legit deals on cameras? [more inside]
Experiences with Gazelle, NextWorth, or other cash-for-electronics programs? [more inside]