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Why do digital oscilloscopes appear noisier than traditional analog oscilloscopes? Dave busts the myth that digital scopes are noiser than analog scopes, and demonstrates what inherent advantages digital scopes can have over analog scopes in terms of true waveform capture. And also why your analog scope may be hiding important …

The most often requested video! 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 …

The EEVblog is 5 years old today! Just a quick thanks to everyone who has supported me and the blog. Podcast: Download

What’s inside a professional Sony MDE7000 Video Effects Processor, as used in TV stations and video production facilities? This one was used in the Foxtel TV1 TV station before it was shut down end of 2013. Dave also discusses high density PCB design issues and methods, and systems engineering. Spec …

Fluke 114/117 Kit Multimeter for hackers, makers, and hobbyists. Tweet @FlukeCorp if you want to get on the list for one: Use the hashtag #FlukeKit Or ask on their Facebook page Dave comments on the Sparkfun/Fluke multimeter customs trademark/trade dress fiasco, and shows off the new low cost Fluke 114/117 …

Dave takes a look at the world’s cheapest temperature controlled soldering station, the $16 Hakko 936 knockoff Yihua 936 from Hobby King. How does it compare to the older genuine Hakko 926? Also, thermal capacity comparison testing is done on those two irons plus the high thermal capacity JBC. Sagan …

Teardown Tuesday What’s inside the world shittiest camcorder that costs a whopping $7.50 on Amazon? The Global New Beginnings DV-136ZB 1.5″ 3.1 MP Digital Video Camera Mailbag: https://www.youtube.com/watch?v=NYWGXLuyH4M Forum HERE Podcast: Download

Fundamentals Friday Dave explains what the ripple and noise specifications on a power supply is and how to measure it using different methods on both analog and digital oscilloscopes. From bad techniques through to good, showing the effect of each one. Traps for young players aplenty in this one. How …

Dave continues the investigation into repairing the HP 35670A Dynamic Signal Analyser. This time using the Flir E8 thermal camera to check for any overheating components on the suspect A5 analog board. Part 1 Part 2 Part 3 Forum HERE Podcast: Download

OSCAR Open Screen Adapter Kickstarter A documentary video on the origins of Hewlett Packard Treadgaming, gaming while running in a treadmill http://engineersbench.com/ http://masaradio.arkku.net/ Cypress USB 3.0 development kit Visionect – A complete 6″ e-ink display waterproof WiFi enabled tablet development kit BareDuino – worlds smallest Arduino compatible board ERIC Low …

Dave checks out one of his favorite “old” oscilloscopes, the 2000 vintage Agilent 54622D mixed signal oscilloscope with the original megazoom ASIC technology and high resolution CRT display. Megazoom technology presentation. Datasheet Forum HERE Hi-res teardown photos: Podcast: Download

Dave reviews the DIYINHK 1080p USB soldering microscope. A hacked Microsoft Lifecam webcam with optics enabling a large working distance and good depth of field. Also showing off the Tagarno FHD ZIP Full HD 1920×1080 60fps USB 3.0 30x optical zoom vision inspection microscope using Youcam 6 Cheap USB microscope …

Inside the Voltech PM300 3 Phase Power Analyser. The Voltech power analyser division was sold to Tektronix in March 2013: www.voltech.com/News/NEWS3.aspx www.tek.com/voltech-pa-redirect www.voltech.com/ Datasheets: www.westek.com.au/wp-content/uploads/2012/08/PM100-PM300.pdf www.analog.com/static/imported-files/data_sheets/AD7575.pdf www.avagotech.com/docs/AV02-0940EN www.ti.com/lit/ds/schs122j/schs122j.pdf Forum HERE High res teardown photos: Podcast: Download

Dave shows how the assemblers will production test the µCurrent PCB panels using his new test jigs. And he will does a trial run on 50 µCurrent PCB’s to determine the average testing time. What will take the longest – PCB testing, or wrapping, or packaging? Soltronico PCB Assembly Forum …

What’s inside Tektronix’s new MDO3000 Mixed Domain Oscilloscope? Dave does a teardown and looks at the circuitry and how they can get such a cheap 3GHz RF spectrum analyser to work. MDO4000 Teardown: https://www.youtube.com/watch?v=J9_JxRiuS5A Datasheets: HMC624 Digital RF Attenuator HMC311 InGaP HBT GAIN BLOCK HMC429 VCO Lattice LFE3 FPGA 77725 …