LED Throwies. LED throwies consist of only a few inexpensive parts and can be made for ~$1.00 per Throwie. You can reference the parts list below or download the attached spreadsheet for more info on parts, part's numbers, vendors and application notes. Part: 10mm Diffused LED Vendor: HB Electronic Components Average cost: $0.20 avg per LED Notes: Cost reductions for larger quantities. Comes in red, blue, amber, white in both diffused and clear. Diffused works better than water clear for the Throwie application. HB has even created a Throwies packs page with deals on 10mm LEDs and lithium batteries! Part: CR2032 3V Lithium Batteries Vendor: CheapBatteries.com Cost: $0.25 per battery Notes: Cost reductions for larger quantities. Part: 1-inch wide Strapping Tape Vendor: Your local hardware store Cost: $2.00 for one roll Notes: One roll will make many throwies.
DIY Electronics. Electronics vendors. Spark, Bang, Buzz and Other Good Stuff. Hack N Mod - Amazingly Cool Hacks, Mods, and DIY Projects. Liquidware : Open Source Electronics. Evil Mad Science Shop. FunGizmos, make something fun! Electronics - News. Maker SHED from MAKE Magazine, craftzine.com, and Maker Faire. DIY Electronics. The Electronic Peasant's Guide to Fun and Profit with Electronic. The Electronic Peasant likes to get more enjoyment from DIY for less money, and sometimes uses obsolete parts as well.
Salvaging old equipment can provide many important parts at little or no cost. And it's environmentally friendly to save this stuff from going to the landfill! There's gold in them there things!!! Older equipment like this is being disposed of in huge quantities, available for free or very inexpensively. It's simply amazing the quantity of good reusable parts here! Hardware - Basic Building Blocks. Every project needs hardware. Hook-up wire Why pay good money for wire? Power Supplies Be careful of aging electrolytic capacitors, but otherwise, power to the people! Transformers Other than burning them out, these things last virtually forever! Electric Motors VCRs and cassette decks are loaded with these! Circuit Boards Many different parts can be found here. Projects Using Salvage Parts: Bench Power Supplies These were built using mostly salvaged parts!
Regulated power supply.