How secure are electronic locks used on safes? Dave tries a basic first attempt power line analysis attack on a standard La Gard (LG) 3740/3750 Basic electronic digital lock on a CMI home safe. Can you crack an electronic digital safe lock with just a resistor and an oscilloscope? All sorts of safe cracking techniques are discussed - thermal camera imaging, bumping, drilling, and spiking the solenoid. And naturally there is a complete teardown of the La Gard lock and a demonstration on how it works. And then Dave does something incredibly dumb, and has to fix it the old fashioned way, Hollywood style. It's a tail of epic fails and stunning wins. Part 2 is here: https://www.youtube.com/watch?v=mdnHHNeesPE Forum: http://www.eevblog.com/forum/blog/eevblog-762-how-secure-are-electronic-safe-locks/ http://www.kaba-mas.com/media/654586/v4/File/basic-basic-plus-series-brochure.pdf ST ST62T25 OTP Microcontroller http://www.alldatasheet.com/datasheet-pdf/pdf/23746/STMICROELECTRONICS/ST62T25.html AT93C46 http://www.atmel.com/Images/doc5140.pdf EEVblog Main Web Site: http://www.eevblog.com The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2 Support the EEVblog through Patreon! http://www.patreon.com/eevblog EEVblog Amazon Store (Dave gets a cut): http://astore.amazon.com/eevblogstore-20 T-Shirts: http://teespring.com/stores/eevblog Donations: http://www.eevblog.com/donations/ Projects: http://www.eevblog.com/projects/ Electronics Info Wiki: http://www.eevblog.com/wiki/

Fundamentals Friday All about opamp input bias currents. Dave goes through the theory, and then does some practical measurements and tweaking. All EEVblog Opamp related videos are here: https://www.youtube.com/playlist?list=PLvOlSehNtuHu2FviAaZaiyXwN41G4b1Lf Offset measurement video: http://www.youtube.com/watch?v=YeNpd-sXaHk Chopper Amp Video: http://www.youtube.com/watch?v=oibJUt6QkwI Forum: http://www.eevblog.com/forum/blog/eev... EEVblog Main Web Site: http://www.eevblog.com EEVblog Amazon Store: http://astore.amazon.com/eevblogstore-20 Donations: http://www.eevblog.com/donations/ Projects: http://www.eevblog.com/projects/ Electronics Info Wiki: http://www.eevblog.com/wiki/

Dave flips the bird. A 1970's Mattel car racing game. Sex on a stick multimeter probes. Sagan, Mrs EEVblog, and a whole lot more in today's Mailbag Monday Bob Widlar poster: http://www.theamphour.com/a-widlar-poster-for-the-ages/ Easy EDA: http://easyeda.com/ Channel Engineer: http://www.youtube.com/user/channelengineer We Make Things: http://wemakethings.net/ http://felitek.de/ http://www.probemaster.com/ Cheap high quality meter probes made in USA: http://www.probemaster.com/product_info.php?cPath=2_12&products_id=198&CDpath=3 Forum: http://www.eevblog.com/forum/blog/eevblog-606-mailbag/ EEVblog Main Web Site: http://www.eevblog.com EEVblog Amazon Store: http://astore.amazon.com/eevblogstore-20 Donations: http://www.eevblog.com/donations/ Projects: http://www.eevblog.com/projects/ Electronics Info Wiki: http://www.eevblog.com/wiki/

Some more info and experiments on driving Nixie tubes. Open circuit cathode voltage, open collector vs totem pole / push-pull drivers, NIxie voltage drop and pre-biasing, and using the ULN2003 with zener clamping. Forum: http://www.eevblog.com/forum/blog/eevblog-948-nixie-tube-display-project-part-1/ EEVblog Main Web Site: http://www.eevblog.com The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2 Support the EEVblog through Patreon! http://www.patreon.com/eevblog EEVblog Amazon Store (Dave gets a cut): http://astore.amazon.com/eevblogstore-20 T-Shirts: http://teespring.com/stores/eevblog