I found this no name fire resistant safe in the dumpster, is it any good? 5 ways to crack cheap safes: https://www.youtube.com/watch?v=Y6cZrieFw-k The art of high security safe locks: https://www.youtube.com/watch?v=I5ge4STdbkE How secure are electronic safe locks?: https://www.youtube.com/watch?v=HxQUKAjq-7w Cracking into a CMI security safe: https://www.youtube.com/watch?v=fj5IpTZunAk How high security safe locks work: …
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Part 1 of the µTimer project, a versatile benchtop lab timer. Choosing the LCD, and getting two sample LCD’s running. One using a demo board, and one that needed to be hacked onto a Raspberry Pi. 00:00 – Benchtop Lab Timer Project 01:19 – It’s all about the choice of …
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I scored this GW Instek APS-7050 Precision AC Power Source on Ebay, let’s check it out. Forum: https://www.eevblog.com/forum/blog/eevblog-1698-awesome-ebay-ac-power-source-gw-instek-aps-7050/ Podcast: Download
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Why does this Uni-T UDP6731 PSU use different brand LM358 opamps on the same PCB? All about Bill Of Materials, SMD pick and place machines, suppliers and specifications. Links: Jellybean Opamps: https://www.youtube.com/watch?v=uq1DMWtjL2U NESS Factory tour: https://www.youtube.com/watch?v=bTij7Juj5qE http://www.artschip.com/pdf/LM358.pdf https://www.st.com/content/ccc/resource/technical/document/datasheet/61/46/87/01/98/ed/44/c5/CD00000464.pdf/files/CD00000464.pdf/jcr:content/translations/en.CD00000464.pdf Forum: https://www.eevblog.com/forum/blog/eevblog-1697-whats-up-with-different-brand-op-amps/ Podcast: Download
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A short tutorial on the maximum efficiency and power you can get from a wind generator. Also applies to water turbine generators. Also deriving the industry standard wind power formula from first principles: Power (W) = 1/2 x ρ x A x v^3 Don’t let any wind power marketing scams …
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More mailbag! 00:00 – Nifty USB Knob from Tiny Little Gadgets https://www.etsy.com/uk/shop/TinyLittleGadgets 03:38 – Reference Circuit PCB books https://www.boltind.com/product-category/reference-circuits-books/ 09:57 – Robin RCD/ELCB Tester 20:57 – Geekom IT12 i7 Mini PC Forum: https://www.eevblog.com/forum/blog/eevblog-1695-mailbag-robin-rcd-tester-pcb-book-usb-knob-geekom-it12-mini-p/ Podcast: Download
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A teardown and design discussion of the Scarlett Rae heater for females, with the designer Scott Williams from Xentronics. Recorded at the Electronex exhibition in Melbourne https://scarletperiod.com/products/rae https://xentronics.com.au/ The Amp Hour discussion on design consulting: https://theamphour.com/624-design-manufacturing-consulting-with-scott-williams-from-xentronics/ Forum: https://www.eevblog.com/forum/blog/eevblog-1694-scarlet-rae-teardown-and-design-discussion-with-xentronics/ Podcast: Download
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It looks like Youtube are finally going to do something about the AI slop channels that are plaguing Youtube? It’s called YOUtube for a reason. If you want AI info slop, go to INFOtube. Forum: https://www.eevblog.com/forum/blog/eevblab-130-youtube-are-finally-demonetising-ai-channels/ Podcast: Download
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A teardown of the Uni-T UTE 310 Digital Power Meter, and an example meausing the power consumption of the new Brymen BM786BT multimeter in bluetooth data transmission mode. https://uni-trendus.com/products/ute310-digital-power-meter Forum: https://www.eevblog.com/forum/blog/eevblog-1693-uni-t-ute310-power-meter-teardown-practical-demo/ 00:00 – Uni-T UTE310 Power Meter 02:44 – Teardown 06:54 – Power supply 07:47 – FPGA and ARM processors …
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Is a US$130 Fluke multimeter any good? A review of the Fluke 17B MAX Multimeter Forum: https://www.eevblog.com/forum/blog/eevblog-1692-$130-fluke-17b-max-multimeter-review/ Why are Fluke meters so expensive: https://www.youtube.com/watch?v=ay9wFQAW19Y Fluke 17B multimeter teardown: https://www.youtube.com/watch?v=TbEtcpM0RGc Fluke vs Brymen Teardown: https://www.youtube.com/watch?v=3Hlmq57FQQk 00:00 – US$130 Fluke 17B MAX Multimeter 02:32 – Construction 04:52 – What’s in the (China …
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The Uni-T UDP6700 series UDP6731 360W slimline Bench Lab Power Supply REVIEWED https://instruments.uni-trend.com/products/dc-power-supplies/UDP6700 https://uni-trendus.com/products/udp6731-360w-basic-dc-switching-power-supply-80v-15a 00:00 – Uni-T UDP6731 PSU 01:30 – Beware of thermal stacking 02:55 – Teardown 07:35 – Sneaky fan 11:24 – Remember the Riden RD6006, also 350W 13:10 – Power up 16:04 – The display and UI …
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More Mailbag! 00:00 – Zifnu K-16 Kickstarter LED light https://www.zifnu.com/ 11:02 – Qoool Sensing: Diamond Quantum Fluorescence Demo https://qoool-sensing.org 16:41 – Logic Gate Educational Demo Board https://logicgat.es/ 20:15 – Beelink ME Mini 6 x M.2 Slot Home Storage NAS https://www.bee-link.com/products/beelink-me-mini-n150?ref=OKJKQ Forum: https://www.eevblog.com/forum/blog/eevblog-1690-mailbag-zifnu-led-quantum-diamonds-logic-gates-m-2-nas/ Podcast: Download
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Another Colour A3 photocopier in the dumpster! Is this an upgrade? Fuji-Xerox Docucentre V C4476 Forum: https://www.eevblog.com/forum/blog/eevblog-1689-another-dumpster-diving-a3-colour-photocopier/ Podcast: Download
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DC Constant Current sources explained and demonstrated. Forum: https://www.eevblog.com/forum/blog/eevblog-1688-constant-current-sources-explained-demo/ Voltage and Current Source Theory: https://www.youtube.com/watch?v=AQK7RyecVW0 DC Circuit Fundamentals Playist: https://www.youtube.com/playlist?list=PLvOlSehNtuHtVLq2MDPIz82BWMIZcuwhK 00:00 – Constant Current Sources 11:08 – Practical uses of constant current sources 14:00 – Circuit examples 19:13 – TL431 Example 20:25 – LM317 CC circuit 21:42 – Low Side …
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The repair of alkaline battery leakage in this Keysight U1177A Bluetooth mulitmeter adapter was, well, pointless…. Forum: https://www.eevblog.com/forum/blog/eevblog-1687-a-pointless-alkaline-battery-leakage-repair-462018/ Podcast: Download
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