Another Twitter question, a demo of the vast superiority of digital oscilloscopes compared to analog scopes when detecting infrequent glitches. And the importance of Persistence mode in debugging.

Video response to EEVblog #279 where Dave talks about pitfalls when connecting your oscilloscope’s ground lead to your circuit. Great video, but he left out and especially sneaky scenario which has caused problems for me (and others I’m sure) in the past. Sneaky because it looks fine on paper, but the problem arises because of the way homes and offices in the US are connected to mains. I’m not sure how many countries are like this, but I know there are at least a few, so worth watching and being aware of regardless of where you live.

EEVblog#279:

Video response to EEVblog #279 where Dave talks about pitfalls when connecting your oscilloscope’s ground lead to your circuit. Great video, but he left out and especially sneaky scenario which has caused problems for me (and others I’m sure) in the past. Sneaky because it looks fine on paper, but the problem arises because of the way homes and offices in the US are connected to mains. I’m not sure how many countries are like this, but I know there are at least a few, so worth watching and being aware of regardless of where you live.

EEVblog#279:
https://www.youtube.com/watch?v=xaELqAo4kkQ

The ISOVP isolated voltage probe allows the safe and accurate measurement of floating voltages in power electronic modules or electronics. Although it is best suited for medium voltage equipment due to the isolation provided, the high common mode and EMI rejection make it a perfect choice for general low voltage measurements. The 25V input voltage range with the supplied x10 attenuator is ideal to measure gate voltage in various semiconductor switching devices and study potential problems and improvements. Also input capacitance has been kept to a minimum as this is what really hurts most high-frequency measurements, causing loading of high and medium impedance signal sources and signal degradation.

In this electronics basics episode we will be having a look at the biggest mistake you can do when working with an oscilloscope. But I will not only show you how to do safe mains voltage measurements but also show you all the basics when it comes to oscilloscopes. That means I will show you how to choose one, how to do simple voltage and current measurements and finally how FFT works. I will explain passive probes, triggering, voltage & time division, measuring functions, the cursor function, AC & DC coupling and single mode capturing. Let’s get started!

0:00 The big mistake when using an oscilloscope
1:08 Intro
2:02 How to choose a scope?
4:44 Passive probes & scaling factor
5:55 Trigger
6:41 Voltage division
7:11 Time division
7:37 Measure function
7:47 Cursor function
8:19 AC & DC coupling
9:08 Single mode capturing
9:36 Current measurement
10:16 Safe mains voltage measurement
11:37 Differential probe
11:52 Math & FFT

MUSTOOL MT8208 Intelligent Graphical Digital Oscilloscope Multimeter 2 in 1 With 2.4 Inches Color Screen 1MHz Bandwidth 2.5Msps Sampling Rate for DIY and Electronic Test Upgraded from MT8206
https://www.banggood.com/MUSTOOL-MT8208-Intelligent-Graphical-Digital-Oscilloscope-Multimeter-2-in-1-With-2_4-Inches-Color-Screen-1MHz-Bandwidth-2_5Msps-Sampling-Rate-for-DIY-and-Electronic-Test-Upgraded-from-MT8206-p-1707883.html?utm_source=googleshopping&utm_medium=cpc_organic&gmcCountry=FI&utm_content=minha&utm_campaign=minha-fi-en-pc&currency=EUR&cur_warehouse=CN&createTmp=1&utm_source=googleshopping&utm_medium=cpc_bgs&utm_content=lynna&utm_campaign=lynna-ssc-fi-all-0917-2021&ad_id=546462077518&gclid=EAIaIQobChMIzpXwsZHM8wIV90geAh2gNAgdEAEYASABEgINzvD_BwE

In this electronics basics episode we will be having a look at the biggest mistake you can do when working with an oscilloscope. But I will not only show you how to do safe mains voltage measurements but also show you all the basics when it comes to oscilloscopes. That means I will show you how to choose one, how to do simple voltage and current measurements and finally how FFT works. I will explain passive probes, triggering, voltage & time division, measuring functions, the cursor function, AC & DC coupling and single mode capturing. Let’s get started!

Reverse engineering the Micsig DP10007 high voltage differential probe.
Turning the PCB into a schematic.

EEVblog 1413 – Oscilloscope Current Probe TEARDOWN + DEMO
https://www.youtube.com/watch?v=suf3VWqs5zw

Teardown and measurements with the Micsig CP2100B 2.5MHz oscilloscope current probe.
Also a demonstration of mains switch mode power supply current and noise measurement, and also some performance tests.