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Everything you need to know about bypass capacitors. How do they work? Why use them at all? Why put multiple ones in parallel? What effect does package type have on performance? Are there any traps? Dave measures some bypass capacitors with an impedance analyser to confirm the whiteboard theory and …

Dave tries to get the Red Pitaya up and running and doing some basic measurements via WiFi & Ethernet. TLDR: Many issues: apps freeze, WiFi didn’t work, and the apps have only very basic rudimentary functionality. But it’s promising, and probably a good solution for those who want to write …

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Dave plays with his new Sony RX100 Mk4 high speed camera that can shoot 1000fps. Blowing up capacitors, fuses, and LED’s. And what does a multiplexed VFD display look like? Forum HERE Podcast: Download

More Mailbag Monday Forum HERE SPOILERS: Qiktag Indiegogo Apple iMac Power Supply Victorinox Minichamp Swiss Army Knife Caran d’Ache pen Kübrich Ingenieure Hose Clamp aren’t the Dodgy Brothers HF Splitter Teardown from Bitshift Dynamics The finest Audiophoolery from Nordost, the $50,000 Odin reference speaker cable And a package for Sagan …

Dave investigates the piezoelectric effect in multi layer chip capacitors (MLCC’s). In this case, on the backlight inverter on his own BM235 multimeter. Forum HERE LCD Driver DATASHEET Capacitor Tutorial VIDEO Podcast: Download

What’s inside a Kollsman Instrument Corporation MD-1 Automatic Astro Compass mechanical analog computer from a B52 Bomber? Part of the star tracker inertial navigation system that calculates the altitude and azimuth. Thanks to The Geek Group Forum HERE Podcast: Download

This was supposed to be a repair video of a Fluke 17B multimeter. But embarrassingly turned into an impromptu How a Mulitmeter Works video. Dave goes through the Fluke 17B schematic and explains how stuff works. Forum HERE Teardown video HERE Thermocouple Tutorial HERE Podcast: Download

What result do you get when you mass test 40 identical multimeters for DCV, ACV, DCA, and Ohms? Dave decided to find out… Multimeter Counts & Accuracy explained: Podcast: Download

Several Teardowns on today’s Mailbag Forum HERE Newsletter Signup SPOILERS Sony M-50 Discman The world’s first portable CD player. A weird Japanese pinball game machine display with huge VFD display. The Joey, a, I2C Raspberry Pi LED display board A D-Link router that has released the magic smoke. The Hack-A-Day …

This time it’s France and their governments ludicrous plan to install 1000km of Solar Roadways from French road building giant Colas Wattway. Dave breaks down yet again why this is pie-in-the-sky folly. Forum HERE Also an update on the 12 months test results of the SolaRoad.nl project in the Netherlands. …

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What’s inside a Sony SELP1650 compact zoom E-Mount camera lens? How does the zoom mechanism work? How does the Sony Optical Steadyshot image stabilisation system work? Forum HERE Podcast: Download

Dave debunks the home energy saver you can buy on ebay for a few dollars. Can a capacitor in a box really save you money by fixing the power factor of appliances? Or will it just end up costing you more? Dave does some measurements to bust the scam wide …

Mailbag. Dave opens his mail and tears down a bunch of random stuff. Forum HERE SPOILERS: Counterfeit copies of Art Of Electronics! Genuine copy is HERE How to detect the counterfeits Other Youtubers: Dexter’s Lab Carl’s Tech Shed Electromechanical vibrator from a chopper amplifier Polygraph machine amplifier teardown Fluke 70 …