Dave goes nuts over dodgy product design decisions in Canon DV camcorders, Fluke multimeters, Timex watches, Princeton Tec LED lights, and PVR's. And how cool would it be to design farting gnomes?

Dave looks at the Japanese Hioki DT4256 Multimeter and 3280 clamp meter http://www.tequipment.net/Hioki/DT4256/Multimeters/product-reviews/ http://www.tequipment.net/Hioki/3280-70F/Clamp-Meters/?v=0 Forum: http://www.eevblog.com/forum/blog/eevblog-973-hioki-multimeter-review-clamp-meter-teardown/ EEVblog Main Web Site: http://www.eevblog.com The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2 Support the EEVblog through Patreon! http://www.patreon.com/eevblog EEVblog Amazon Store (Dave gets a cut): http://astore.amazon.com/eevblogstore-20 T-Shirts: http://teespring.com/stores/eevblog

Dave reviews the new Rigol DS1054Z Oscilloscope. Is this US$399 marvel really the best value budget oscilloscope on the market? This is a summary video, be sure to watch all the other videos on this scope: Full features review: http://youtu.be/W2qdtQkBKhc Teardown: http://youtu.be/kb9P1Am9aFU Jitter Problem: http://youtu.be/kcOdzFaIYNE Jitter Problem Fix: http://youtu.be/K1IJH9aJvgE Reverse Engineering: http://youtu.be/lJVrTV_BeGg Forum: http://www.eevblog.com/forum/blog/eevblog-703-rigol-ds1054z-oscilloscope-review-summary/ EEVblog Main Web Site: http://www.eevblog.com The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2 Support the EEVblog through Patreon! http://www.patreon.com/eevblog EEVblog Amazon Store (Dave gets a cut): http://astore.amazon.com/eevblogstore-20 Donations: http://www.eevblog.com/donations/ Projects: http://www.eevblog.com/projects/ Electronics Info Wiki: http://www.eevblog.com/wiki/

The most often requested video! In this tutorial Dave explains what Operational Amplifiers (OpAmps) are and how they work. The concepts of negative feedback, open loop gain, virtual grounds and opamp action. The comparator, the buffer, the inverting and non-inverting amplifiers, the differential amplifier, and the integrator circuit configurations are also explained. Then a practical breadboard circuit to demonstrate a virtual ground and the effect of voltage rail limitations. All EEVblog Opamp related videos are here: https://www.youtube.com/playlist?list=PLvOlSehNtuHu2FviAaZaiyXwN41G4b1Lf Forum: http://www.eevblog.com/forum/blog/eevblog-600-opamps-explained/ Buy the T-Shirt here! https://teespring.com/NegativeFeedbackBlack EEVblog Main Web Site: http://www.eevblog.com EEVblog Amazon Store: http://astore.amazon.com/eevblogstore-20 Donations: http://www.eevblog.com/donations/ Projects: http://www.eevblog.com/projects/ Electronics Info Wiki: http://www.eevblog.com/wiki/