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/

What's inside a Dräger Multiwarn II gas detection warning system used in mining, oil, chemical, and emergency services etc to detect hazardous or explosive atmospheres. Intrinsic safety design and how both catalytic bead and infrared IR gas detectors work, and pellistors. And a teardown of a Hydrogen Sulfide (H2S) sensor. http://www.a11supply.com/images/file/rev1_MultiWarn%20II_En.pdf http://www.draeger.com/sites/assets/PublishingImages/Products/cin_x-am_5600/US/draeger-sensor-portable-handbook-9046571.pdf http://www.xinpian.net/MOTOROLA/MC68HC711/MC68HC11E1.pdf Forum: http://www.eevblog.com/forum/blog/eevblog-603-gas-sensor-teardown-drager-multiwarn-ii/ 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/

Soldering the Nixie Tube display PCB. How to do drag and dab soldering to make surface mount parts soldering easy. Also a look at the Elecrow blank prototype PCB quality. Jump to 3:36 for the soldering tutorial Part 6 of the Nixie Tube project Forum: http://www.eevblog.com/forum/blog/eevblog-997-how-to-solder-surface-mount-components/ 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

Dave looks at the Japanese Hioki DT4256 Multimeter and 3280 clamp meter http://www.tequipment.net/Hioki/DT4256/Multimeters/product-reviews/ http://www.tequipment.net/Hioki/3280-70F/Clamp-Meters/?v=0 Forum: http://www.eevblog.com/forum/blog/eevblog-973-hioki-multimeter-review-clamp-meter-teardown/ 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