Synthfilter: Sequential Circuits Prophet 600 giving me problems: keys not playing notes, but silicone contacts are clean and working. Looking to be directed to the right person/place/forum to ask or maybe someone here can help [more inside]
posted by Charlie Lesoine on Aug 31, 2009 - 3 answers

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

Wiring question: What is this crazy non-standard switch I need? [more inside]
posted by stormygrey on Jan 30, 2009 - 16 answers

I have a medium-sized run of printed circuit boards that'd be most cost-effective for me to silkscreen/photo-etch at home. I'm pretty sure I got that part covered... lots of tutorials available [1, 2, 3, etc]. It'd be a shame, though, to build this setup and then not use it again, so I'm wondering where are some great repositories for (all types of) PCB layouts? Added difficulty: Would like reasonable descriptions of "what they do" and how the boards are likely to be employed. [more inside]
posted by jjjjjjjijjjjjjj on Dec 30, 2008 - 7 answers

What are some fun, simple electric wiring projects I can try? [more inside]
posted by Deflagro on Jun 14, 2008 - 11 answers

DIY photolithography: has anyone ever tried to etch their own high-resolution PCB layouts or electrode patterns? [more inside]
posted by Krrrlson on Feb 24, 2008 - 6 answers

Can you show me a photo beam sensor or a magnetic sensor that is close to the size of my pinky? [more inside]
posted by kaozity on Dec 3, 2007 - 8 answers

I'm making a timer for skateboard racing and need some help. Does anyone have some advice on wiring simple circuits to lend? [more inside]
posted by infomaniac on Jul 6, 2007 - 8 answers

Can you connect a capacitor directly to a voltage source? [more inside]
posted by stuffedcrust on Apr 5, 2007 - 16 answers

I need suggestions for a good book that covers digital circuit design (specifically practical design using MSI/LSI TTL, PLD's, CMOS, FPGA, etc. [more inside]
posted by beammeup4 on Sep 21, 2006 - 2 answers

Why couldn't I cook anything last night? Electrical problems? Climate? Black magic? [more inside]
posted by ducksauce on Aug 3, 2006 - 10 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

Scientists (and others) are using modified inkjet printers to print a wide range of really nifty things, such as working electronic circuits, 3D architectural models, and living tissue like organs and skin. My question is, do you have to modify one yourself, or are they for sale? Where would I get an inkjet printer that was capable of printing out a layer of resin or wax or whatever? The only one I can find is the kind that prints out edible birthday cake photos.
posted by RylandDotNet on Mar 26, 2005 - 9 answers

Art student requests technical advice of electrical engineer (or similar) for electrical components in a sculptural installation. [details within] [more inside]
posted by evilbeck on May 7, 2004 - 5 answers