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20250411 - I got this cheap 4000V Berakdown Voltage tester from AliExpress and I have to say it's really amazingly useful. Check out what this thing can do for less than $20!!! Now you can Measure the breakdown voltage on: Transistors, Mosfets, IGBT, Triacs, Diacs, Rectifier Diode, Zener Diode, Thyristors, Capacitors, MOV to detect fakes or faulty components. Buy this amazingly us

20250414 - I reviewed this amazingly useful 4000V component tester a couple of days ago and some subscribers commented on how safe this was when used to test components such as semiconductors and capacitors. Would it damage the component under test? Well let's take a look at that and while we are at it let's have a look inside the tester to see how it works. Find the original revi

20250415 - I've been working with Detlef on a quick and dirty way to get a go/no go diagnosis for vintage CPU. This version of the NOPPER is for the Z80 CPU. it would be easy to design one for other common CPU such as 6502. This video is kindly sponsored by PCBWAY.COM : For All Your PCB needs: free $5 discount coupon https://www.pcbway.com/setinvite.aspx?inviteid=561767 You can

20250414 - Notes document is available here, with timecodes: https://github.com/adafruit/adafruit-circuitpython-weekly-meeting/blob/main/2025/2025-04-14.md Sorry for the quiet audio of other participants! Join here for the chat all week: http://adafru.it/discord The CircuitPython Weekly normally is held at 2pm US ET/11am us PT on Mondays. Check the #circuitpython-dev channel on

20250414 - Every week we'll 3D print designs from the community and showcase slicer settings, use cases and of course, Time-lapses! This Week: Chicken Jockey By kirimba / BCLivingston https://makerworld.com/en/models/1070119-minecraft-chicken-articulated https://makerworld.com/en/models/1296930-chicken-jockey Bambu X1C Black White Blue PLA 19hr 18mins X:51 Y:35 Z:46mm .2mm layer

20250414 - We repair two Hewlett Packard HP 59501B units, and use them to transform a mundane 1960 HP power supply into a digitally programmable one. HP 59501A/B manual scan, including readable schematics page: https://archive.org/details/hp-59501b-manual Buy your own HP repair fancy pants: https://shop.curiousmarc.com/products/mr-fancy-pants-plaid-pants Stuff that supports the

20250413 - On My Bench Is a faulty Musicson P-802 amplifier, It appears to be dead, let's see if we can fix it. I work in collaboration with: The Electronics Channel (with Carlos and Detlef) https://www.youtube.com/@theelectronicschannel Gran Canaria Uncovered https://www.youtube.com/@GranCanariaUncovered (with Detlef and Julie. Not electronics related) Friends of LER Det Builds

20250325 - Full tutorial: https://learn.adafruit.com/glowing-hair-flowers-with-n00ds/overview Light up your hair with these beautiful iridescent glowing hair flowers. The magical light comes from Adafruit n00ds: a fun, flexible noodle-like LED filament. These little noodles are jam-packed with LEDs and look a bit like EL wire, but with no need for an inverter. They are available i

20250326 - Full tutorial: https://learn.adafruit.com/love-light/overview Let your LOVE light shine with this lovely handmade light. Press gently on the wooden base to turn the sign on or off. The warm white glow illuminates your bedside table and shouts your message to the world. This project will work with any 4-letter word using our LED letter filaments. This one is battery pow

20250412 - Daniel now has a Patreon! Check it out at https://patreon.com/danielnaroditsky 00:00 Intro 00:26 Game 1: Alapin Sicilian vs Naha11 (1658) 16:43 Game 1 Analysis 26:23 Game 2: French Defense Advance Variation vs thejewmamba (1676) 38:16 Game 2 Analysis (incl. Alekhine vs Nimzowitsch example) 44:13 Conclusion Naha11 https://www.chess.com/game/live/136721003144 thejewmamba