January 15th, 2013

beartato phd

(no subject)

In other hobbies-I-can-get-away-with-pursuing-for-hours-at-a-time-since-I-am-unemployed news,
Trivial Transistor Circuit
here's a trivial transistor circuit I finally got working just to convince myself (a) I understand transistors correctly, and (b) I can understand the !@#$ing relationship between abstract transistor terminals and where they actually are in the real world correctly. (Answer: I can only do so after like six tries, apparently. I keep thinking Base should be between Collector and Emitter on the package, and I constantly confuse Collector with Emitter) Stupidly basic thing to accomplish, but still feels fun. I can verify that the PNP bipolar transistor does in fact conduct from emitter to collector when I pull the base low, and doesn't when I pull it high.

Also been playing around with a little DC motor. I have a stepper motor in my possession, but I think I need to hook up some more parts before I can drive it correctly.
beartato phd

(no subject)

Christmas is only 11 months away! Start shopping for me now:


Here is the webpage describing this big table o' plastic sand-like-stuff:
http://www.emriver.com/?page_id=834

I would have peed my pants if I had access to one of these things when I was a kid. I not the webpage does not list a price, putting it in the If-You-Have-To-Ask-You-Probably-Can't-Afford-It bin. Sweet videos though.