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STICKY Megathread: Random observations about electronic devices

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A highly performing transistor based on an inorganic metal halide perovskite

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Found this little guy at the dollar store. Okay for Arduino? [4000x3000 - 988KB]

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eevBLAB 91 - Why Are Fluke Meters So EXPENSIVE? [17:48]

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Scanning electron micrographs of an Intel i486 [10:16]

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Schematics to all versions of the Big Muff Pi

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Unknown ESP32 saving modes: Light Sleep, Clock Reduction, Modem Sleep, Hibernation, and a few tricks [17:23]

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HFDY vs. Fire Brothers: Dan compares two Chinese Malahit SDR clones | The SWLing Post

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ESP32-S2 New Arduino USB Functionality: Cool Combination with WiFi [12:31]

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Review of Charger TP5000 4.2-3.6V module

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Observations I wonder why it failed... [1633x1725 - 723KB]

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Capacitors - Dielectric Absorption

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Making 100 transistors silicon integrated circuit chips in your garage

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PA amplifiers from e-waste [16:36]

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Sennheiser Sells Off Its Consumer Brand

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Gravity compensation and Spherical robot joint with AK60-6 actuator [12:50]

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SWITCHES - The Secret Life of Components, a series of guides for designers and makers - Episode 4 [32:31]

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Umbratek Actuator: Low Backlash, High Torque for reasonable price [12:29]

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FreeCAD Export to KiCAD [05:36]

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Observations SD card reader by brand “entryx” sometimes automatically reconnects, then reading speed drops from 20 to 3 MB/s until reinserting memory card.

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2015 Medion 64GB USB 3.0 vs. 2015 Hama 16GB USB 2.0 same-priced flash drive comparison: Hama flash storage is a scam by definition.

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Torching A Computer (While It's Running) [12:01]

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Some cheap “garbage” from China might just work fine.

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Pololu - Understanding Destructive LC Voltage Spikes

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Article: I bought a 9,000,000mAh power bank from eBay, and I got what I deserved

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Some really tiny USB-C boards - MangoGeek dual serial USB board and Ant2 LiPo Charger

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