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The Amp Hour Electronics Podcast: Daily Summaries Delivered
by The Amp Hour (Chris Gammell and David L Jones)
Chris Gammell and Dave Jones' voices span the chasm of thousands of miles each and every week to speak to each other and industry experts about where the field of electronics is moving. Whether it be a late breaking story about a large semiconductor manufacturer, a new piece of must-have test equipment or just talking through recent issues with their circuit designs, Chris and Dave try to make electronics more accessible for the listeners. Most importantly, they try and make the field of electronics more fun. Guests range from advanced hobbyists working on exciting new projects up through C-level executives at a variety of relevant and innovative companies.
Latest Episodes
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- Yesterday59 min
#725 – The Secret Life of Circuits with lcamtuf / Michał Zalewski
s Welcome Michał Zalewski, AKA lcamtuf! The lcamtuf Substack is where Michał is writing most these days Chris first found and geeked out about the CNC guide on the lcamtuf original site (discussed many times here) Michał is interested in the craft of teaching electronics He recently published The Secret Life of Circuits with No Starch Press Use the code AMPHOUR26 for 30% off The Secret Life of Circuits valid from June 1st through June 30th It was announced on his blog here Deriving fomulas from basic trigonometry sometimes bugs people who think electronics should only work with calculus Software geeks follow the site, often getting lots of attention on Hacker News Row hammer DRAM There were no Information Security degrees in the early days, so the field was made up of folks with backgrounds in math and EEs Fuzzing for security SMBC cartoon for blming humans Books American Fuzzy Lop The Tangled Web P0f v3 Silence on the Wire Security stuff (including books on the subject) ages over time, as opposed to electronics On the subjects of Calculators (and Michał’s collection) Calculators are a footnote in the history of computing, but still intriguing Dead ends in calculators CRT displays on calculators Nixie tubes Discrete moving into logic gates into processors Mechanical calculators are rare and get a high price online Working with transistors The Secret Life of Circuits start with FET based transistors vs BJT BJTs are often right after diode chapter because of the multiple junctions in an NPN, but that doesn’t make it easier to understand Projects A recent project involved making a clock out of current meters Woodworking and AI example Want to see all lcamtuf articles in one place? Sokoban Sir box-a-lot
- 1 weeks ago1h 6m
#724 – All Heat, No Useful Work
Chris just got back from a work trip to Madrid He also got to hang out with Matt Venn (and coworker Mike Szczys) in Valencia Dave has a new data center going in across the street Chris enjoyed this episode of Prof G Markets where they talked about the impact of data centers on power and the rise of “behind the meter” generation Dave without internet for a week. Chris has had multiday losses after fiber has been cut in his neighborhood. Humanoid robots…on a plane! Chris has been working on 0201 components on a tiny Bluetooth board The Iran War and subsequent rise in petroleum product sourcing issues is starting to impact the PCB industry PCBs we are used to ordering at low cost (JLC, PCBway, etc) are normally loss leaders to get larger business later Chris found his low cost microscope from Florin/Voltlog trinocular video lcamtuf will be on the show soon, Chris bought a CNC mill because of a single webpage of his making TagMod board is a new breakout Chris made for injecting power through a 10 pin TagConnect cable. NXP devboards somehow have LEDs as bright as the sun Dave has been revisiting his solar analytics (update: he figured out he’s getting charged more too!) Chris has been working at Canonical (makers of Ubuntu, new owners of Golioth) for a few months now. That was the trip to Spain. Dogfooding your own product Chris created a backronym: “Application Level Program Optimization” or… ALPO CI/CD Debian now requires “fully reproducable” builds to harden against supply chain attacks Veritasium video about Linux bug
- 4 weeks ago1h 10m
#723 – BeagleBoard’s Back with Jason Kridner
Jason Kridner returns to The Amp Hour after his first appearance 15 years ago to talk about the BeagleBadge and Zepto boards that showcase new capabilities in the Linux and Zephyr space. The BeagleBoard.org project is still focused on building open source, affordable, and accessible Linux and embedded hardware.
- Apr 23, 20261h 9m
#722 – AI Tooling with Matt Liberty and Luke Beno
Past guests Matt Liberty (Joulescope) and Luke Beno (Werewolf.us) join Chris to talk through using AI tooling for small businesses in the hardware and firmware space. Both have built custom ERP systems, among many other tooling for their businesses, in a fast moving environment.
- Apr 9, 202659 min
#721 – Chip Design for Fun (and Waffles) with Julia Desmazes
Julia Desmazes joins Chris to discuss designing chips for fun and getting an entire design done in 2 weeks to make a tapeout deadline. Julia built accerlators and has continued to dive deeper into on and off chip tooling for greater visibility into the silicon she gets back from the fab.
- Apr 1, 20261h 1m
#720 – Hyper Growth and OpenClaw Interns
Dave and Chris discuss Golioth getting acquired by Canonical (makers of Ubuntu), trying out OpenClaw in the lab, changes to space plans, big new factories, Arm making chips, and more!
- Mar 20, 20261h 5m
#719 – Inventing the Power MOSFET with Alex Lidow
Alex is founder and CEO of Efficient Power Conversion, a leading manufacturer of GaN MOSFET's. Alex is also the inventor of the original Power MOSFET and HEXFET at International Rectifier. Also, former CEO of International Rectifier (founded by his father!), https://epc-co.com We cover everything from inventing the power MOSFET on his first day on the job to silicon physics, AI data centres and humanoid robots. Enjoy.
- Mar 11, 20261h 0m
#718 – Layout Review with Zachariah Peterson
Zachariah Peterson joins Chris to discuss doing PCB layout and creating content for engineers looking to learn more about how to build their own PCBs
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About The Amp Hour Electronics Podcast
Chris Gammell and Dave Jones' voices span the chasm of thousands of miles each and every week to speak to each other and industry experts about where the field of electronics is moving. Whether it be a late breaking story about a large semiconductor manufacturer, a new piece of must-have test equipment or just talking through recent issues with their circuit designs, Chris and Dave try to make electronics more accessible for the listeners. Most importantly, they try and make the field of electronics more fun. Guests range from advanced hobbyists working on exciting new projects up through C-level executives at a variety of relevant and innovative companies.
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