EEVblog

Why are Fluke multimeters so expensive? PART 2 A teardown of the Fluke 70/170 series vs the Brymen BM786. Is there any design and construction difference that justifies 2-3 times the price? 00:00 – Fluke vs Brymen 01:07 – The Yellow Peer Pressure 01:57 – Fluke 77/177 vs Brymen BM786 04:01 – Ruggedness 05:05 – ...

Analog Watt Hour energy meters are fascinating! How they work, teardown, and experiments. Thanks to Max Button for sending this in to the mailbag. 00:00 – Watt Hour Energy Meters 02:11 – Teardown 05:13 – What’s to stop it taking off? 06:40 – Does it work? Testing with a load. 07:24 – Can you get ...

How to simulate a x1 oscilloscope probe in LTSPICE. And how to use the lossy transmission line model in practice with the spice directive. Forum: https://www.eevblog.com/forum/blog/eevblog-1445-how-to-simulate-an-oscilloscope-probe-in-ltspice/

XMAS Mailbag featuring Mrs EEVblog, Sagan, and Huxley! Forum: https://www.eevblog.com/forum/blog/eevblog-1444-xmas-mailbag/ SPOILERS: Badge https://bit.ly/3m3t4Yj RF Antenna DigitalCool PCB Coaster: https://www.tindie.com/stores/digitalcool/ Neon photos from a future Indian EE Casio OH-7000G overhead projector calculator Trevor’s Bench https://www.youtube.com/c/TrevorsBench Circuit Mess Nibble STEM kit: https://circuitmess.com/nibble/ kWh meter Spotty solder paste dispenser: https://avdweb.nl/tech-tips/pcb/solder-paste-dispenser 1980’s Appliance control from your phone Curz Scanner: ...

A follow-up video to the Electrodynamic Shaker, showing you the critical importance of Coherence measurement. Something you’ll only get taught in the school of hard knocks! Using the Ling Electrodynamic shaker, a measurement accelerometer, and a Dynamic Signal Analyser to set up a vibration test system. 00:00 – Electrodynamic Shaker 01:20 – The most inportant ...

An innocent TO-220 regulator gets tortured using a mystery device from the bunker. The art of environmental PCB testing. 00:00 – What is this thing? 01:00 – I used to use these all the time 02:40 – Electrodynamic Shaker 03:56 – How PCB’s are vibration tested 07:00 – Teardown 08:10 – Accelerometers 12:27 – The ...

Repsonding to Adam Something’s video claiming that electric buses are a scam. Lets analyse his claims and look at what’s really happening with the cost benefit anlysis of electric buses vs diesel and electric trolley buses. Adam’s video: https://www.youtube.com/watch?v=AqHsXv7Umvw 00:00 – Electric buses are a scam 01:20 – The claims 01:50 – Growth of electric ...

Teardown of a mid 90’s vintage Pentax IQZoomEZY film camera. Forum: https://www.eevblog.com/forum/blog/eevblog-1440-pentax-film-camera-teardown/

Dave analyses Veritasium’s video “The Big Misconception About Electricity” and how energy flows in the Poynting vector in the electromagnetic field OUTSIDE the wire instead of inside the wire. 00:00 – Veritasium’s video “The Big Misconception About Electricity” 00:32 – Rection to the points in the video 01:11 – This is a bit MISLEADING! 02:28 ...

Dave looks at his TOP 5 (plus change) Jellybean Voltage Regulators and References, and explains why you need to know them. 00:00 – Jellybean Voltage Regulator & References 01:52 – 78xx Linear Voltage Regulator 08:01 – Adjustable Voltage Regulator 13:52 – 1117 Low Dropout Regulator 15:21 – LDO Stability 20:01 – LM4040/4041 Voltage Reference 24:38 ...

How does an Electric Car charger work? A teardown of the Myenergi Zappi 7kW EVSE and experiments demonstrating how the car detection system and charge mode works. 00:00 – Zappi 7kW Single Phase EVSE Charger 02:46 – Type 2 Charging Standards 08:30 – Teardown 17:32 – Power Up 20:56 – Experiments! Forum: https://www.eevblog.com/forum/blog/eevblog-1437-zappi-7kw-electric-car-charger-teardown-experiment/ Installation & ...

Dave looks at his TOP 5 (plus change) Jellybean OPAMP’s, and explains why you need to know them. Forum: https://www.eevblog.com/forum/blog/eevblog-1436-the-top-5-jellybean-opamps/ 00:00 – Jellybean OPAMP’s 01:47 – LM358 07:51 – FET Input TL071/72/74 11:28 – CMOS LMV358 15:17 – LM324 17:23 – The LM321 is NOT a thing 19:09 – Oh, all right, the LM741 19:41 ...

Dave goes hunting for the most expensive IC on Digikey and ends up finding a bunch of unusual stuff! Forum: https://www.eevblog.com/forum/blog/eevblog-1435-the-worlds-most-expensive-catalog-ic/

Teardown of a Cadex C7000 commercial battery analyser. Forum: https://www.eevblog.com/forum/blog/eevblog-1434-cadex-c7000-battery-analyser-teardown/ 00:00 – Cadex C7000 Battery Analyser 04:20 – Universal probe teardown 09:45 – Main unit teardown 22:14 – Power up

Dave eventually finds the (a) fault in the Sony RX100 MkIV camera. WARNING: No happy ending, just an hour and ten minutes of Dave getting his arse kicked by Murphy. 00:00 – Sony RX100 Mk4 Repair Part 3 01:03 – Down the schematic rabbit hole 06:23 – That looks important 15:46 – The least likely ...