A tutorial on how to read timing diagrams. An essential skill for designing and understanding digital logic, FPGA and microcontroller designs and datasheets. Forum HERE Podcast: Download
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A tutorial on how to read timing diagrams. An essential skill for designing and understanding digital logic, FPGA and microcontroller designs and datasheets. Forum HERE Podcast: Download
Read More »Dave found this crazy bargain of the century no-name $9 0.02% class multifuction process calibrator on Aliexpress. Is it any good? Actually, it’s an AIMOmeter AMPX1 that sells for over $200 on ebay, so what gives? How can they possibly manufacture and sell a 0.02% class device for under ten …
Read More »When does PCB propagation delay matter in PCB layout? Dave goes down the rabbit hole from DIY TTL processor design to DDR memory design and layout. DDR memory termination. What is a timing budget? When is it important? How does signal integrity matter? When do you have to do serpentine …
Read More »How to convert a dumpster Sony CRT TV into a retro computer RGB monitor. Going through the design considerations, schematics, datasheets and the “jungle chip” and how to feed in the RGB signal and switch it. Also a look at the the old school CGA video interface on an IBM …
Read More »Can you find the fault in the IBM PCjr wireless keyboard before Dave does? A most excellent adventure in troubleshooting. Forum HERE Podcast: Download
Read More »More Mailbag! Forum HERE SPOILERS: Mailbag SPAM! Arizona If it smells like chicken, you’re holding it wrong. 2:57 https://www.tympan.org Open source hardware audio hearing development system. 11:20 Circuit Scribe conductive ink learning kit https://www.circuitscribe.com/ 24:20 Sony RM-440 video editing unit teardown 30:42 Pulse Sensor https://www.pulsesensor.com 31:36 DIY Mouse Kit https://github.com/biomurph/Mouse …
Read More »Repair and teardown of a Sony CFD-V10 portable stereo boombox Service manual Forum HERE Podcast: Download
Read More »Part 2 of the power-up counter project, investigating the Sharp Memory LCD & custom LCD’s + microcontroller (MSP430 + ST ARM + Microchip) low power design with supercaps, SMD ceramic batteries, and coin cells. Forum HERE Podcast: Download
Read More »Looking for a segmented e-ink / e-paper display solution for a power up display counter module project. Forum HERE Podcast: Download
Read More »Go back in time to 1980 and a look at what consumer electronics and parts were available from Tandy in the UK. 1980’s Tandy Voice Recognition Chip: https://www.youtube.com/watch?v=kFth9K_IvwA Dick Smith’s new channel: https://www.youtube.com/watch?v=80seR-2BPyk Forum HERE Podcast: Download
Read More »More Mailbag! Forum HERE SPOILERS: Dodgy Plugpack Teardown & Discussion 9:40 eSATA cage thingo teardown 11:47 Ford Car Stereo teardown 18:34 Back To The Future Delorean Time Circuits https://www.marmosetelectronics.com/time-circuits-clock/time-circuits-clock-the-control-board/ 23:39 E-con Systems USB3 Camera Module: https://www.e-consystems.com/usb-cameras/full-hd-low-light-usb-camera-with-stereo-mic.asp Podcast: Download
Read More »You think a $2 multimeter is bad? A review of the Kickstarter & Indiegogo Vion bluetooth multimeter that promised the world. Grab your popcorn for a master class in idiotic product design. The world’s worst multimeter. The original thread Forum HERE Podcast: Download
Read More »Old school, they don’t make’em like this any more. Teardown of the HP 3785A Jitter Generator & Receiver with beautiful HP bubble LED displays. Forum HERE Podcast: Download
Read More »You never go full Brusaw! Germany has it’s own Solar Freakn’ Roadways trial, guess the results… Forum HERE Podcast: Download
Read More »Most modern DSO’s don’t have Alternate Triggering, but Dave shows you how to do it anyway! This allows you to trigger on and view and anaylse two otherwise asynchronous time un-correlated signals on the screen at once. Also a look at Dual Time Base oscilloscopes. Oscilloscope Tutorial Video Playlist Forum …
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