Some amazing deals, for those adventurous enough to figure out by themselves how some of these components work: $40 miniature Russian Geiger counter http://www.goldmine-elec-products.com/prodinfo.asp?number=G19139 $1 strong electromagnetic coil (sounds great for experiments with ferrofluid!) http://www.goldmine-elec-products.com/prodinfo.asp?number=G18180 $9 Electronic Drug Screening Module (likely a colorimeter - I ordered 2!) http://www.goldmine-elec-products.com/prodinfo.asp?number=G19381 $5 Projection TV Optical Unit http://www.goldmine-elec-products.com/prodinfo.asp?number=G19187 $20 Rear projection light engine http://www.goldmine-elec-products.com/prodinfo.asp?number=G19210 $30 50mm Erbium laser rod from flashlamp pumped laser rangefinders http://www.goldmine-elec-products.com/prodinfo.asp?number=G18403 $1 cell phone camera (no info - good luck!) http://www.goldmine-elec-products.com/prodinfo.asp?number=G17609 Patrik ---------- Forwarded message ---------- From: Anders Nelson &lt;anders.k.nelson(a)gmail.com&gt; Date: Wed, May 1, 2013 at 4:21 PM Subject: [dorkbotsf-blabber] Goldmine Electronics Summer Sale To: Dorkbot Dorkbot &lt;dorkbotsf-blabber(a)dorkbot.org&gt;rg>, " noisebridge-discuss(a)lists.noisebridge.net&quot; < noisebridge-discuss(a)lists.noisebridge.net&gt; I've ordered lots of things from Goldmine in the past and apparently they're doing some spring cleaning (i.e. cheaper stuff): http://www.goldmine-elec.com/mailchimp/20130501-SummerSale/index.htm I especially dig the candle-like flickering LEDs. =] -- Anders Nelson +1 (517) 775-6129 www.erogear.com ---------- dorkbot: people doing strange things with electricity http://dorkbot.org/dorkbotsf/ SUBSCRIPTION AND UNSUBSCRIBE OPTIONS HERE: http://music.columbia.edu/mailman/listinfo/dorkbotsf-blabber ----------