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Design News, May 2013

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GADGET FREAK The Gadget Freak® Files Case #235 ADVERTISEMENT "IGNITION CONTROL UNIT" Amt 70055538 CONN TERM BLOCK 2.54MM 2POS 70054335 CONN TERM BLOCK 2.54MM 4POS 70054337 TRANSISTOR, SWITCH; NPN; 40VCE; 75VCB; 6VEB; 0.6A 70014158 1 Photos: Edward A. Nauman Diode, Switching; 100V; 200mA; DO-35; Cut-Tape 1 $500 to spend on Allied's website at www.alliedelec.com/gadgetfreak or anywhere you please. And don't forget to supply us with a video file of your gadget in action. E-mail Design News your proposed project (must incorporate electronic components and involve sensing, motion, timing and/or networking elements) to rob.spiegel@ubm.com, along with a description of how it works, a parts list, schematic, photos and video. If your project is selected, you'll receive a $500 check from Design News and will be featured in an upcoming issue of the magazine or at designnews.com with your invention. 70095201 1 Are you a Gadget Freak? Design News and Allied Electronics would like to send you a check for CAP CER 0.1UF 50V 20% RADIAL 3 from the ground up. It is based on an Avago quadrature encoder with 1,000 pulses per revolution. Because the encoder mounting requirements dictate fairly precise mechanical location and stability, it was necessary to machine a whole new housing and drive shaft, rather than using the stock parts. The housing is machined out of 6061-T6 aluminum billet and carries four precision sealed roller bearings to support the drive shaft. The drive shaft is machined from 304 stainless steel. The stock helical drive gear was utilized with an added miniature precision thrust bearing, instead of the stock thrust washer. There are locating pips machined into the encoder mounting flange, which takes care of aligning the encoder head. The matching code wheel is also stainless steel for survivability. The electronics are contained on a single printed circuit board mounted above the encoder. The assembly is protected by a screw-on cover machined from billet aluminum. DN 70067793 1 EDWARD A. NAUMAN'S IGNITION CONTROL UNIT (ICU) was designed Allied Part # 100Uf, 25 v ELECTROLYTIC 4 Harley Davidson Ignition Control Unit Part Description 2 LED; Blue; 400mcd; T-1-3/4; 10deg; Radial; Panel; Clear; 70079132 1 MCU, 8-Bit, CMOS, 28-Pin, 8 KB Flash, 768 RAM, 22 I/O 70046277 1 VOLTAGE REGULATOR, TO-220; 5V 70013702 1 10 PIN HEADER CONN. 70054337 1 ENCODER MODULE , ROP=11MM, 3CH, 500CPR 70158231 1 Codewheel, 2 and 3 Ch for use with Optical Encoder Modules, 500 CPR 70158166 DesignNews.com Check out the ignition control unit in action at www.designnews.com/GadgetFreak. Sign up for the Gadget Freak RSS feed and get the posts delivered directly to your desktop at http://www.designnews.com/rss_simple.asp. More of What You Need: Find schematics, build instructions and a full parts list at www.designnews.com/GadgetFreak. To get Gadget Freak delivered directly to your inbox, go to http://www.designnews.com/ register.asp. For parts information, call (800) 433-5700 or go to www.alliedelec.com/gadgetfreak Sponsored by » Design News | MAY 2013 | www.d e sig n n e ws.c o m –64– magenta cyan yellow black ES247138_DN1305_064.pgs 05.06.2013 23:22 UBM

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