EEVblog No Script, No Fear, All Opinion

Repairing the Schaffner NSD200E Mains Interference Simulator. And the dangers of bad mains filters capacitors, and RIFA brand in particular. HVP-70 High voltage differential probe Forum HERE Podcast: Download

A look inside a Swiss made Schaffner NSG200E Mains Interference Simulator after it released the magic smoke. A very unusual bit of kit that tests products for mains line interference like lightning strikes, transients, and dropouts. May involve alien crop circles. Forum HERE Podcast: Download

Dave exposes the ECO (Nitro) OBD2 Fuel Saver as a complete SCAM! They are supposed to talk to the car’s ECU via the CAN bus on the OBD2 connector, but does it even do that? Or is this Homeopathy for cars? Bonus rant on Audiophile Audiophoolery! Forum HERE Podcast: Download

What is parametric searching, how is it useful, and how to best use it. Dave answers a viewer question and hunts down the best microcontroller for the job, explaining and demonstrating parametric search engines in the process. Forum HERE Podcast: Download

Mailbag Forum HERE Stempedia Electronics Learning Kit: https://thestempedia.com Powerfilm Solar flexible indoor solar panels and bluetooth development board. https://www.powerfilmsolar.com/specialty-markets/indoor-solar-panels/ Synwit 25 cent ARM micro http://smdprutser.nl/blog/the-arm-chip-that-wont-cost-an-arm-and-a-leg/ https://lcsc.com/product-detail/Synwit_SWM050I2P7-65_C111818.html Xmas tree light PCB: https://goo.gl/U8H48y Casio Calculator watch teardown Full length video cuts: Stempedia Evive: https://www.youtube.com/watch?v=WXJP_CNYt3o Powerfilm Solar: https://www.youtube.com/watch?v=S-UqkM8iDKM Podcast: Download

How to make your own magnetic H-field EMC probe out of semi-rigid coax for $10 that performs identically to a $300 commercial probe! Search for “Low noise amplifier” and “semi-rigid rg402” on ebay. Forum HERE Podcast: Download

Patreon is an unsustainable business, in their own words. They took the investment money and now they are paying the price. It looks as though nothing Patreon can do that won’t piss off their creators will bring in enough money to keep the investors happy. In addition to the fallout …

What’s inside the Ericsson / LG IPECS PABX left behind in Dave’s new lab. Along with a Jabra Bluetooth headset Forum HERE Podcast: Download

What difference does a 4 layer PCB make to EMC radiated emissions compared to an identical 2 layer PCB? And why? Dave does H-Field near-field probe testing on two otherwise identical PCB’s. Electromagnetic waves and the difference between near field and far field, and H-Field and E-field probes and wave …

Some of the most commonly asked questions: How do you become a professional electronics engineer?Can you be a professional engineer without a degree?How do you get an engineering job or contract job? The different grade of engineering are also explained. Professional engineers, Engineering Technologists, and Associate Engineers. https://www.oregonlive.com/news/2018/12/federal-judge-finds-state-law-governing-who-is-an-engineer-violates-free-speech.html Forum HERE …

Teardowns of the Rohde & Schwarz HMP4040, HMP2020, and NGE103 programmable lab power supplies. Comparisons with other brand PSU’s: There are some comparisons with other brand PSUs https://www.rohde-schwarz.com/brochure-datasheet/hmp/ https://www.rohde-schwarz.com/au/product/hmp4000-productstartpage_63493-47360.html https://www.rohde-schwarz.com/au/product/nge100-productstartpage_63493-387267.html Forum HERE Podcast: Download

Rohde & Schwarz were offended at the quality of the power supplies in the EEVblog lab, so sent in some “real” lab power supplies! Unboxing and first look at the Rohde & Schwarz HMP4040, HMP2020, and NGE103 programmable lab power supplies. Comparisons with other brand PSU’s: There are some comparisons …

A follow-up to the Yihau/WEP SMD Station Meltdown, testing the heater drive TRIAC and looking at the brushless DC fan motor. And how a TRIAC and SCR works. DaveCAD github Forum HERE Podcast: Download

David2’s Yihau/WEP 898D+ SMD rework station literally melted down! Autopsy time. Forum HERE Podcast: Download

Mystery Teardown from the dumpster! Even Dave had no idea what this was until he tore it down. Patents VIDEO Forum HERE