EEVblog

By David L. JonesTechnology Education

EEVblog episodes

October 03, 2023 EEVblog 1569 – A Very Ploopy Open Source Mailbag
More mailbag!
DIY Open Source Ploopy Headphones: https://ploopy.co/headphones/
EEtackle Probe Holder: https://www.eetackle.com/
Intertooth Wireless Bluetooth Networking Console : https://intertooth.com/
00:00 – Mailbag
00:24 – Ploopy DIY Open Source Headphones
13:32 – EEtackle Probe Holder
18:18 – Intertooth Wireless Bluetooth Networking Console
29 min
October 03, 2023 EEVblog 1568 – Tesla Megapack 2 Battery FIRE! at Bouldercombe QLD
A Tesla Megapack 2.0 battery is on fire at the 100MWh Genex battery storage facility at Bouldercombe in Queensland.
https://www.abc.net.au/news/2023-09-27/tesla-battery-fire-at-queensland-renewable-energy-project/102905302
https://wattclarity.com.au/articles/2023/09/27sept-bouldercombe-bess-fire/
https://www.afr.com/companies/energy/fire-at-genex-power-battery-project-in-qld-a-rare-occurrence-20230927-p5e7ym
https://cleantechnica.com/2022/05/13/heres-what-tesla-learned-from-last-years-megapack-fire-in-australia/
https://genexpower.com.au/renew-economy-genex-eyes-trebling-of-revenue-says-new-battery-already-sopping-up-negative-prices/
Victoria Big Battery Fire Investigation Report: https://victorianbigbattery.com.au/wp-content/uploads/2022/12/VBB-Fire-Independent-Report-of-Technical-Findings.pdf
19 min
October 03, 2023 EEVblog 1567 – Wireless ESD Monitor? – The IONA StatIQ Band TESTED
Does the $1200 IONA Tech StatIQ wireless ESD monitor band actually work? or is it just BS?
And if so, how does it work?
IONA Tech video: https://www.youtube.com/watch?v=c2Uzo5qL4JM
Wiresless ESD strap BUSTED: https://www.youtube.com/watch?v=nvgW5iWXbts
ESD Explained: https://www.youtube.com/watch?v=Uk5F3rQNUkU
ESD Playlist: https://www.youtube.com/playlist?list=PLvOlSehNtuHsKCtJJ_rlRP5qE7lN-1EMX
Mud Run: https://www.youtube.com/watch?v=yAahT8_P-_E
DIY Field Mill project: https://www.youtube.com/watch?v=aTncxhQp9z0
Forum: https://www.eevblog.com/forum/blog/eevblog-1567-wireless-esd-monitor-the-iona-statiq-band-tested/
00:00 – A wireless ESD monitor? The IONA Tech StatIQ Band
02:06 – The Electric Field Mill sensor
03:27 – The Android app, and does it actually work?
06:15 – ESD ground impedance correlation
07:21 – What’s going on with the clean room bunny suit?
08:12 – Well, there’s your problem…
08:35 – Let’s try a WORKING ESD coat this time
09:23 – But is it just smoke and mirrors? Surface DC Voltmeter measurement time
11:30 – Validatd
11:52 – Calibration
12:15 – How it works
15:24 – The physics
18:09 – Conclusion
22 min
September 23, 2023 EEVblog 1566 – Rigol DHO800 12 Bit Oscilloscope FULL REVIEW
Has the new Rigol DHO800 and DHO900 oscilloscope changed the game in low end scopes?
Starts at $299 with 12bit ADC, HDMI, VESA mount, and USB-C power.
Teardown: https://www.youtube.com/watch?v=KQF4UzLPpr0
Fan upgrade test: https://www.youtube.com/watch?v=zoyaHOqp9gI
DIY Battery: https://www.youtube.com/watch?v=MbBq1AVIQAc
Forum: https://www.eevblog.com/forum/testgear/rigols-new-dho800-oscilloscope-unbox-teardown/
00:00 – History of game changing Rigol Oscilloscopes
03:27 – All the DHO1000 and DHO4000 goodness
05:14 – Compared to the DS1054Z
05:52 – The DHO900
06:38 – Unboxing
07:07 – Liteon USB-C PSU
07:30 – It’s TINY!
08:42 – VESA mount & Fan Noise
09:08 – HMDI, touch screen, and mouse
10:41 – USB-C physical connection
11:25 – External battery power
11:45 – The couch feet
12:01 – The boot time is not great
12:10 – Micro SD card Android O/S
12:36 – 7″ Capacitive touch screen
13:36 – The LED’s aren’t great
13:52 – Knobs
14:32 – The SMELL
15:01 – Sample rate and memory depth QUIRK
16:34 – A wasted button, and the Rigol Menu
17:13 – Measurements
18:11 – Trigger capability
18:36 – Vertical menu system
19:51 – It’s basically a $299 DHO4000
20:23 – DS1054Z size comparison
21:54 – Built down to a price
22:29 – 12 bit is great, but why not Eres?
22:57 – Waveform update rate TESTED
24:49 – It does drop
25:09 – And it’s impressive again
25:45 – Waveform window organisation
26:52 – Alias test
27:05 – The FFT waveform updating is impressive
28:04 – Peaks would be nice
28:16 – Can I have snappy cursors please
28:48 – A little bit annoying
29:01 – 12 bit FFT test FAIL
32:01 – FFT noise floor
32:15 – Siglent 1104X-E FFT and R&S MXO4 FFT comparison
33:17 – The pulse response TESTED
33:45 – Front end noise TESTED
35:12 – Input microphonics TESTED
35:27 – Here’s the money shot, the 12bit ADC resolution
36:22 – Vertical range BUG
37:19 – QUICK button and screen capture
38:22 – Date and Time is overrated
38:42 – RECORD mode, waterfall, mosaic, adjacent and perspective displays
43:00 – DVM
44:05 – Windows
44:53 – UART Serial decoder
46:27 – CRASH!
47:38 – SPI bus decoding
47:56 – Input Floating and Ground Connection
48:42 – Does the 12 bit give you more dynamic range?
49:31 – Display BUG or QUIRK?
50:10 – The DS1054Z Help system is still better
51:25 – Remote LXI LAN TESTED
53:47 – The probes are AWESOME! – Shootout with Siglent
56:49 – Conclusion
1 hr 1 min
September 23, 2023 EEVblog 1565 – UNSW Electronics Lab & Makerspace Tour
A tour of one of the electronics teaching labs and the makerspace at arguably the best electronics engineering university in Australia, UNSW. With Associate Professor Torsten Lehmann.
Forum: https://www.eevblog.com/forum/blog/university-of-nsw-electronics-lab-makerspace-tour/
00:00 – A tour of the UNSW electronic lab with Torsten Lehmann
02:57 – Why they chose the R&S RTB2000 oscilloscope
03:49 – Remotely interactive demo boards
04:52 – Does university teach practical skills any more?
08:41 – For the Siglent fanboys
10:50 – Soldering station
12:16 – Practical projects
15:13 – Thesis and learning to play an instrument analogy
16:39 – The 400kV High Voltage Lab
17:22 – Power systems laboratory
18:33 – Power electronics and drives laboratory
19:42 – Maker Space
22 min
September 11, 2023 EEVblog 1564 – Agilent/Keysight U1273AX Multimeter Repair
A very interesting repair of an Agilent/Keysight U1273AX OLED display multimeter. It had two distinct unrelated faults.
Ian Scott Johnston on The Amp Hour: https://theamphour.com/643-calibration-repair-with-ian-johnston/
Forum: https://www.eevblog.com/forum/blog/eevblog-1564-agilentkeysight-u1273ax-multimeter-repair/
00:00 – Faulty Agilent / Keysight U1273AX OLED display multimeter
01:36 – Battery leakage, OF COURSE!
04:26 – Bottom of PCB
05:47 – The OLED display
10:09 – Annoying voltage measurements
15:14 – At great expense to management, a new OLED
18:18 – Winner Winner Premature Dinner
20:19 – The Repair is over, right? RIGHT?
21:22 – Accuracy fault. Repair time again.
25:23 – Hybrid Thin Film Resistor Dividers
26:56 – Parallel contamination
29:44 – When in doubt, suck it off
34 min
September 06, 2023 EEVblog 1563 – New $389 12bit Rigol DHO800 Scope TEARDOWN
Teardown of the new $389 12bit Rigol DHO800 oscilloscope!
Forum: https://www.eevblog.com/forum/blog/eevblog-1563-new-$389-12bit-rigol-dho800-scope-teardown/
EXCLUSIVE Unboxing and first impressions video: https://www.eevblog.com/2023/09/01/website-exclusive-rigol-hdo800-oscilloscope-unboxing/
HDO1000 Teardown: https://www.youtube.com/watch?v=qEpkVa_ysaw
HDO4000 Teardown: https://www.youtube.com/watch?v=W1Jl0rMRGSg
Teardown photos:
00:00 – Rigol’s NEW $389 DHO800 12 bit Oscilloscope!
02:43 – USB-C Powered
03:19 – Teardown of the Small Sparrow, and the DHO900
06:39 – Heatsink Removed and cost reduction
08:01 – Is the USB-C connector robust enough?
11:25 – Plastic moulding
12:13 – Back side of PCB
12:48 – PCB Comparison with HDO1000
13:56 – The ADC
15:13 – What is the missing memory?
15:42 – BOM cost INCREASE? Why?
16:40 – Bypass caps WTF. Madman Muntz is turning in his grave!
17:42 – Front end comparison with DHO1000 and HDO4000
20:00 – The Logic Analyser
21:15 – The Arbitrary Waveform Generator option in the DHO900
22:39 – PCB summary, and Dave doesn’t allow this type of production engineering!
22:31 – Serial boot dumping
25:56 – The boot Android O/S micro SD card
27:15 – Power consumption and summary
30 min
August 28, 2023 EEVblog 1562 – THE 1980’s Boombox TEARDOWN – Sharp GF-7600
Teardown of THE 1980’s Boombox / Ghetto Blaster, the iconic Sharp GF-7600
That boombox from the iconic scene with John Cusak in Say Anything playing Peter Gabriel’s In Your Eyes
Unboxing: https://www.youtube.com/watch?v=381wHMamsYQ
Sony Walkman teardown: https://www.youtube.com/watch?v=a0B4CWfYE8I
Forum: https://www.eevblog.com/forum/blog/eevblog-1562-the-1980s-boombox-teardown-sharp-gf-7600/
TEARDOWN PHOTOS:
20 min
August 28, 2023 EEVblog 1561 – µSupply USB Power Supply – Part 21
Part 21 of the uSupply USB power supply design. An update on where the project got to and why.
A look at the working unit, PCB and schematic.
Design series Playlist: https://www.youtube.com/playlist?list=PLE37A0E6F75C37452
Forum: https://www.eevblog.com/forum/blog/eevblog-1561-usupply-usb-power-supply-part-20/
41 min
August 28, 2023 EEVblog 1560 – TIP: Use Your Arb Gen as a High Resolution DC Voltage Source!
Tech Tip: How to use you Arbitrary Waveform Generator as a High Resolution DC Voltage Source!
Siglent teardown: https://www.youtube.com/watch?v=Ijb_SzJ9Fs0
Forum: https://www.eevblog.com/forum/blog/eevblog-1560-tip-use-your-arb-gen-as-a-high-resolution-dc-voltage-source!/
9 min