So I'm visiting my wife's family in Portland and just discovered that the electronics surplus wonderland known as "Wacky Willy's" went out of business several years ago. It was sort of like Archie McPhee's for Maker types. Are there other similar places that I can take my budding geek 12-year-old that are similar to Wacky Willy's? [more inside]
I bought a few strands of cheap LED Xmas lights this year. They include a circuit box with several settings to make the lights flash in different patterns. The circuit box resets itself (to a new annoying setting) each time the lights are unplugged or when it shorts out in the rain, and I also suspect the box is the product's "built-in expectancy" (since otherwise LEDs might last too long to be profitable. Can I bypass the box? [more inside]
Can anyone recommend a book or website to help me in making a small led light? [more inside]
What are some computer "accessory" items I haven't thought of? [more inside]
What type of electronic position sensor (aka tracker) should I use to track the position of an object in three dimensions? I want to watch the position through software; I don't care about velocity, relative movement, or orientation. Also, I'm on a low budget for this. Either wired or wireless sensors would be fine. [more inside]
Where can I get a replacement motor for my vintage Christmas color wheel? [more inside]
What electronic components / tools would I need to follow along and complete the examples in Forrest Mim's book "Getting Started With Electronics"? I've paged through the book several times, and don't really see any listing of what is required. I'd like to pick everything up in one go if possible. Thanks!
I'm about to teach a soldering class to kids, and it occurs to me that I may blow a fuse in the room that I'm doing the event in if I plug too many in at once... Any idea of how to gauge how many I can plug in simultaneously? This is the soldering iron I have. http://www.elexp.com/sdr_5258.htm Ideally, I'll plug in 12 at once... thank
I'm looking for a very specific kind of printer that can print true black onto 4x6 card stock weight paper. [more inside]
I have some old electronic car keys. What can I do with them? [more inside]
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]
Electronics help. I'm looking for a good informational/tutorial web site for working with high power LEDs 5 Watts and up. [more inside]
Where do I buy electronics components in southern Brooklyn (or lower Manhattan)? [more inside]
Can I learn anything useful from the circuit board of a nonfunctional infrared remote control? [more inside]
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]
How to I tackle replacing (rear) car speakers when there's a special connector? [more inside]
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!
Please Hope me select a new TV. [more inside]
Pet peeve: hardened, twisted electronic cables that come with brand new products. How can you soften them? [more inside]
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]
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]
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?
What's the real reason Blu-Ray players don't come in multi-disc carousel configurations? [more inside]
Can you help me find a specific digital video camera + wireless microphone combination? [more inside]
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]
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]
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?
Can you help me find an mp3 player with very specific qualifications? [more inside]
Is is safe to store flash media and other electronics in a tin? [more inside]
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]
Help me find a place that can do quality speaker/subwoofer repairs in the Los Angeles area. [more inside]
Is there a way to directly download a coded configuration from an FPGA board to a computer? [more inside]
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]
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
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!
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]
Please recommend some decent outdoor speakers for under $200! [more inside]
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]
Being an electronics wizard, what do you wish you'd known when you started out? [more inside]
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!
I want to drive 20ish LEDs, should I run them as series or parallel and why ? [more inside]
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.
I can't quite get to the bottom of a USB peripheral auto-switching circuit diagram. [more inside]
Help me rediscover an electronics project from Radio Shack from back in the '80s. [more inside]
What is going on in LED lightbulbs? I mean the devices, not the industry. [more inside]
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]
Help me find a place to purchase this tiny car part for a Scion xB! [more inside]
How smart are smartpens? [more inside]
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.
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]