Circuit builder in Minneapolis area? [more inside]
posted by ian1977 on Aug 5, 2009 - 3 answers

We need to salvage an the blower motor in the our ac unit. [more inside]
posted by stormygrey on May 27, 2009 - 12 answers

Anybody know of any free software that will take my logic equations and make a circuit diagram? [more inside]
posted by iconjack on Apr 14, 2009 - 6 answers

How can I test wiring for a car radio? [more inside]
posted by Nonce on Apr 4, 2009 - 13 answers

What's the best way to make a Crackle Box-type circuit (where the user touches and closes the circuit with their fingers)? [more inside]
posted by itchi23 on Mar 24, 2009 - 4 answers

Where can I buy a discontinued 11C90 650 MHz prescaler? This is for reverse engineering a SR-2020 mystery receiver that a friend of mine has been working on. Any information on this will be very much appreciated. Bonus hand drawn analog circuit diagrams. [more inside]
posted by mikw on Mar 13, 2009 - 3 answers

Is there a general liquidation timeline I can use to determine when to purchase an item? I'm specifically looking at Circuit City. I was in there last week and saw that a DSLR (the Canon Xsi) I've been eyeing was at this location and was on sale for 10% off. I went again on Thursday and it was down to 20% off. I just came back from checking today and it was still 20% off and in stock. When would be the best time to purchase it? By "best" I mean lowest price but still in stock. [more inside]
posted by simplethings on Feb 2, 2009 - 12 answers

How do I build a microphone preamp for a Macbook Pro? [more inside]
posted by knowles on Jan 25, 2009 - 6 answers

can you help me locate a circuit diagram of a gps module on internet? [more inside]
posted by raphael19 on Aug 5, 2008 - 5 answers

Garage circuit breaker keeps tripping... [more inside]
posted by starman on Jul 14, 2008 - 11 answers

Messin with electronics.. filter. I'd like to slightly circuit-bend my Casiotone MT-100 - creating a switch that cuts one circuit when power is applied. [more inside]
posted by tmcw on Jun 30, 2008 - 3 answers

Electronics filter. Game show buzzer+. There are tons of simple game show buzzer layouts on the google. What I can't seem to find is an idiots guide to something that would allow you to take an input more complicated that a simple yes/no. i.e. interrupt + [string]. Any pointers?
posted by Jakey on Jun 26, 2008 - 3 answers

Electrical Estimate Filter: Short version is, is $1100 USD a proper estimate for simply replacing a 125 amp breaker and a 60 amp breaker in a standard residential breaker box? [more inside]
posted by Rendus on May 25, 2008 - 9 answers

Is Curves International (i.e. the company behind Curves gyms) really that bad? If it is, are there any other gyms that are similar to this chain in terms of target clientele and training plan? [more inside]
posted by LolaGeek on Apr 20, 2008 - 18 answers

I need help designing a simple circuit before I accidentally catch my desk on fire. [more inside]
posted by jivesoul on Mar 12, 2008 - 8 answers

Any electricians out there? How can a household circuit *halfway* stop working? I am confused. Details inside. [more inside]
posted by Lokheed on Oct 26, 2007 - 13 answers

Can you help me solve this (not homework) computer science problem? [more inside]
posted by yellowbkpk on Oct 3, 2007 - 21 answers

So the electrician said nothing was wrong. But something WAS wrong, only it fixed itself by the time he got there. Help me diagnose this maddening problem our tenant had. [more inside]
posted by dhartung on Sep 21, 2007 - 17 answers

ElectronicsFilter: How do I drive a step-up transformer to get hundreds of volts out of an AA battery? They're only 1.5v. [more inside]
posted by spacewrench on Sep 3, 2007 - 7 answers

2 outlets & a ceiling light stopped working at the same time. None of the circuit breakers were flipped. What would cause this, and how can I troubleshoot it? [more inside]
posted by designbot on Aug 30, 2007 - 15 answers

I need to add grounding to an outlet. How bad an idea is it to chain the ground to the ground of another outlet that is on a different circuit a few feet up from that one? [more inside]
posted by BrotherCaine on Jul 24, 2007 - 12 answers

Is closed circuit HDTV a possibility? [more inside]
posted by nickerbocker on Mar 12, 2007 - 7 answers

I have a simple Sony reel-to-reel tape deck from the 1960's that I'd like to install a speed control on. Since I have no electronics skills, can anyone here recommend an ace 'circuit bender' in the Los Angeles area? Thanks :)
posted by starscream on Mar 1, 2007 - 3 answers

My kitchen is systematically going on strike. Last week, my kitchen faucet stopped working. The sprayer thingee still works when the water is on. All other water appliances still work. Just no water from the kitchen sink. The next day, my roommate tells me that the garbage disposal isn't running. Everything else on that circuit is running fine. What to do? How do I fix this? Do I call an electrician, a plumber?
posted by donmayo on Oct 26, 2006 - 7 answers

Any suggestions for a small, battery-powered flashing LED setup I can use for an outdoor mock alarm? [more inside]
posted by pallen123 on Oct 21, 2006 - 5 answers

CircuitBreakerFilter: Im trying to find out if my circuit breaker panel was ever recalled, its a Federal Pacific w/ Catalog #1306-12. It also has another # which is Y22455Y-1
posted by flipmiester99 on Oct 9, 2006 - 3 answers

I'd like to trigger a relay that momentarily closes a switch based on the voltage of another wire. Maybe. I think. Please help me with this basic (I hope) electronics project. [more inside]
posted by odinsdream on May 14, 2006 - 6 answers

Just a stupid question that's puzzled me for years: Why is it that, on electric fans, the order of the settings on the switch is OFF - HI - MED - LO? I'm sure there's an electrical reason for this, but I don't know what it is, since I know nothing about circuitry. One would think that OFF - LO - MED - HI would make more sense. Can someone explain this to me?
posted by Dr. Wu on Jun 14, 2005 - 23 answers

I want to learn how to make simple electronics, like LED controllers that I can hook up to a serial port. Can anyone recommend a book to get started with? [more inside] [more inside]
posted by krunk on Aug 29, 2004 - 13 answers