Bart from Cleverscope returns to discuss and show off designing a 2000V isolated oscilloscope, and demonstrates measuring high voltage GaN transistors and Solid State Transformers.
https://cleverscope.com/products/CS548

Forum: https://www.eevblog.com/forum/blog/eevblog-1753-designing-a-2000v-isolated-oscilloscope-(cleverscope)/

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#ElectronicsCreators #Cleverscope
...
https://www.youtube.com/watch?v=WdYBL-_8-oo

WTF were Texas Instruments thinking changing the design and major specs of the 45+ year old jellybean NE5532 audio opamp WITHOUT changing the part number?!

New datasheet: https://www.ti.com/lit/ds/symlink/ne5532.pdf
Old datasheet: https://www.mouser.com/datasheet/2/405/ne5532a-556776.pdf
Change Notification: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/5726/PCN20231114002.1.pdf
Onsemi datasheet: https://www.onsemi.com/pdf/datasheet/ne5534-d.pdf
Forum thread: https://www.eevblog.com/forum/chat/ti-ne5532-audio-opamp-changes/

General forum related to this video: https://www.eevblog.com/forum/blog/eevblog-1752-wtf-texas-instruments-big-ne5532-changes/

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#ElectronicsCreators #texasinstruments #opamp
...
https://www.youtube.com/watch?v=22ZmmZ67SMY

5 different ways to measure phase angle on your oscilloscope.

00:00 - What is phase angle measurement?
01:48 - Automated measurement
06:38 - Cursor Measurement
12:24 - Graticule measurement
13:55 - Positive or Negztive? A trap for young players
14:50 - Another graticule method using horizontal shift
16:00 - How to increase horizontal measurement resolution
17:55 - Lissajous figure (X-Y mode) measurement
22:14 - Measure phase angle using Voltage? Yes, it's possible!

Forum: https://www.eevblog.com/forum/blog/eevblog-1751-oscilloscope-phase-measurement-masterclass/

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#ElectronicsCreators #tutorial #Oscilloscope
...
https://www.youtube.com/watch?v=Sf0RyRZAuqk

More Mailbag!

00:00 - Linus Tech Tips Screwdrivers!
https://www.lttstore.com/collections/ratcheting-screwdrivers
https://www.lttstore.com/collections/precision-multi-bit-screwdriver
15:30 - Closer look at the screwdrivers
18:52 - Red Light Skin Therapy device
22:31 - Spectrum measurements
27:19 - EZABoard Arduino Learning Kit
https://ezaboard.com/
Videos shot on 16mm film!
https://odysee.com/@MatthewMulder:d
35:40 - Vintage Tek Museum CurveBug Curve Tracer Debugging Tool
https://vintagetek.org/curvebug/

Forum: https://www.eevblog.com/forum/blog/eevblog-1750-mailbag/

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#ElectronicsCreators #Mailbag
...
https://www.youtube.com/watch?v=_6pF3_MLlco

Solar Analytics RIPPED ME OFF!
Jacked up their fees 40% above what their website says, and they refuse to respond to me. So screw them, I'm looking for a new home circuit energy monitoring system.

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#ElectronicsCreators #SolarPower
...
https://www.youtube.com/watch?v=wQbCsk7UAFc

Review of the Werewolf VFLEX USB-C power supply cable system.
https://werewolf.us/collections/werewolf-products/products/vflex-3-pack-starter-kit



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#ElectronicsCreators
...
https://www.youtube.com/watch?v=PFRdmn3SipY

The dumpster really delivered today, with no less than FOUR 4K Retina display iMac's! Plus a Nikon DSLR camera!



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#ElectronicsCreators #Apple #Dumpster
...
https://www.youtube.com/watch?v=zGyHTFXEtzg

Demonstrating the difference between Schottky diodes and PN junction silicon diodes, and how your multimeter can influence your measurement when troubleshooting.
Answering an interesting Twitter question.

https://x.com/blind_via/status/2052223991839170919
https://www.tti.com/content/ttiinc/en/resources/blog/infographics/schottky-diodes.html
https://engineering.purdue.edu/~ee606/downloads/ECE606_f12_Lecture17.pdf

Forum: https://www.eevblog.com/forum/blog/eevblog-1746-schottky-vs-pn-diodes-measurement-traps/

00:00 - Twitter question
01:21 - Recreating the problem
03:08 - Why doesn't it read zero volts? Let's try a PN junction diode
04:21 - Schottky vs PN Junction diodes, they are NOT the same!
06:06 - What about a diode tester?
07:15 - Why doesn't the Schottky diode work like a diode?
08:39 - It's a multimeter measurement TRAP!
10:37 - A closer look at Schottky diodes
14:21 - Datasheet inspection, and advantages vs disadvantages of Schottky diodes
15:21 - Reverse leakage current, PN vs Schottky
17:16 - THREE orders of magnitude difference!
22:29 - Digital vs Analog multimeter, Analog WINS!

Zener Diodes: https://www.youtube.com/watch?v=O0ifJ4oVdG4
Orders of Magnitude: https://www.youtube.com/watch?v=jjvIy04PwYI

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#ElectronicsCreators
...
https://www.youtube.com/watch?v=NyGznsgUt7U

A tribute to the 555 timer and Hans Caminzind, which turns 55 years old this year. Released on May the 5th, International 555 Timer Day at 5:55pm with a length of 5:55
And Dave demonstrates blowing out the birthday candle with his 555 Killer One Shot circuit.

Use coupon code 555 for 5% off on the EEVblog store
Hardware Store: https://eevblog.store/

https://spectrum.ieee.org/chip-hall-of-fame-signetics-ne555
https://www.righto.com/2016/02/555-timer-teardown-inside-worlds-most.html
http://www.historyofelectronics.com/Much-Ado-About-Almost-Nothing.pdf

Forum: https://www.eevblog.com/forum/blog/eevblog-1746-the-555-is-55-years-old!/

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#ElectronicsCreators #555
...
https://www.youtube.com/watch?v=6JhK8iCQuqI

Walk time rant. The NBN Internet in the Norwest Business Park has been down for 6 days now since April 24th, and was supposed to be fixed today. But the latest update is now 8th May!
This impacts thousands of businesses in the business park, and Telstra mobile is on it's knees as a result as everyone scrambles for another solution. And my backup Optus 5G connection is also barely operational under the strain.
I'm uploading this from home because I only have 1Mbps upload speed at the lab.

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#ElectronicsCreators #Rant
...
https://www.youtube.com/watch?v=sP9_y8-lsKg