EEVblog
EEVblog #507 - The First ARM Processor Computer - Acorn Archimedes A3000
updated
SPOILER: Nope, it's pretty terrible.
https://s.click.aliexpress.com/e/_DeqZYGH
Forum: eevblog.com/forum/blog/eevblog-1645-$80-quick-ts11-soldering-station-review
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#ElectronicsCreators #Soldering #Review
00:00 - Crowview Monitor & Keyboard
elecrow.com/crowview-note-all-in-one-portable-monitor-phone-to-laptop-device-with-full-featured-type-c-sbcs-mini-pc-pc-game-console-compatibility.html?idd=5
08:11 - Casio Border Army Game+Watch
11:34 - Minipa ET-1700 Pocket Multimeter
13:24 - Adafruit PCB Ruler
14:14 - PASS Card Game
15:13 - Crusty Raspberry Pi
17:40 - Sinusoid 4-20mA Rotary Encoder
store.sinusoid.com/encoders/encoders-rotary/rotary-encoder-rpe4-8-absolute-analog-4-20ma-output-8mm-shaft.html?utm_source=referral&utm_medium=website&utm_campaign=eevblog_aug24&utm_id=eevblog30824
29:29 - Wurkkos H1 USB Battery Bank
https://s.click.aliexpress.com/e/_DDNAnMH
36:05 - Rulerize, transparent ruler sticker
rulerize.com
Forum: eevblog.com/forum/blog/eevblog-1644-mailbag-crowview-monitor-casio-game-4-20ma-encoder-wurkkos-ba
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#ElectronicsCreators #Mailbag
Does it even meet the IEC 62752 it claims on the label? Or the US UL 2231 standard?
A better MIDA brand EVSE: youtube.com/watch?v=SrZgN_EuRGw
Forum: eevblog.com/forum/blog/eevblog-1643-dont-buy-this-cheap-7kw-32a-ev-charger
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#ElectronicsCreators #EV #Teardown
Forum: eevblog.com/forum/blog/eevblog-1641-can-i-resurrect-my-first-digital-multimeter
Meter was also branded Dick Smith Q-1446 youtube.com/watch?v=I6C0HnkR7EM
00:00 - My first digital and analog multimeters, Soar ME-533 + Micronta 22-201U
03:20 - Battery terminal corrosion, of course
05:13 - My first pair of pliers and screwdriver
06:11 - Teardown
08:10 - Removing the LCD
10:24 - LCD under the microscope, the magic fluid escaped
15:14 - Conductive LCD traces on glass
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#ElectronicsCreators #multimeter #repair
00:00 - Teardown of Benedict LS25 Solar True DC Isolator Switch
04:29 - How the contacts work
06:02 - How arc chutes and arc barriers work
12:11 - 5000V arc testing
Datasheet: https://www.benedict.at/files/documents/6617533-DC-Switch-Disconnector-D946E.pdf
Forum: eevblog.com/forum/blog/eevblog-1641-how-dc-solar-isolators-work-(teardown)
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#ElectronicsCreators #Solar #Teardown
00:00 - Forrest M Mims Make: Maverick Scientist: My Adventures as an Amateur Scientist
amzn.to/4e7fSup
Signed copies: makershed.com/products/maverick-scientist-hardcover
Engineers Mini Notebook are still available!
amzn.to/3zvSkjJ
amzn.to/3XLRJnn
amzn.to/3XLMHY7
amzn.to/4dd9cJQ
In the Lab with Jay Jay: youtube.com/@InTheLabWithJayJay
03:30 - Unmanaged615
reddit.com/r/TheAmpHour
04:40 - Piezo tranducer sensor thing + singing capacitors and hydrophones
08:18 - Simpson panel meter with GORGEOUS Beckman Panaplex display!
13:41 - 10GHz RF tank level sensor, teardown + how it works
Lightbox Engineering lightboxengineering.com
20:16 - Tomlov TM 4K AF Max Microscope
amzn.to/47vEWJa
https://s.click.aliexpress.com/e/_DDJDCgF
Forum: eevblog.com/forum/blog/eevblog-1640-mailbag-4k-microscope-panaplex-displays-piezo-singing-rf-magic
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#ElectronicsCreators #Mailbag
keysight.com/us/en/products/oscilloscopes/infiniivision-2-4-channel-digital-oscilloscopes/infiniivision-hd3-series-oscilloscopes.html
Forum: eevblog.com/forum/blog/eevblog-1639-keysight-hd3-oscilloscope-teardown
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#ElectronicsCreators #Keysight #Oscilloscope
There appear to be two differnet renders:
dreamproducts.fluke.com
newproducts.fluke.com/?utm_campaign=IG-NA-MULTI-2024-AUG-VISION-VOC-EN-EML-1-A&utm_medium=email&utm_source=Eloqua
Forum: eevblog.com/forum/testgear/new-fluke-87-vi
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#ElectronicsCreators #Fluke #Multimeter
NOTE: I only had this scope for 24 hours from when it arrived to when I released this video, so please excuse the crudity of the video, I didn't have time to build it to scale or to paint it.
keysight.com/us/en/support/HD304MSO/infiniivision-oscilloscope-4-analog-channels.html
Forum: eevblog.com/forum/blog/eevblog-1638-new-keysight-megazoom-v-asic-1ghz-hd3-oscilloscope
00:00 - NEW Keysight HD304MSO 14bit ADC Oscilloscope with Megazoom V ASIC!
08:19 - Boot up
10:24 - New User Interface
14:12 - A few bugs
15:40 - 100MHz Signal Gen
16:28 - USB & Quick Action
18:13 - Intensity Graded Display DOWNGRADE?
19:30 - Ethernet remote and VNC
21:01 - Screen Scaling?
22:59 - Measurements
23:44 - Coming soon... X-Y & Roll
24:52 - 100uV/DIV ?
25:38 - Measurement on full data or screen?
27:34 - Trigger level range limitation, another coming soom feature
28:02 - Comparison to R&S MXO4, Half the noise, and 14bit vs 12bit
29:57 - Update rate comparison
30:44 - Noise measurement at 1V/DIV
31:17 - Custom ADC speculation
31:55 - BRUTAL Update rate comparison, Megazoom Magic
35:13 - Lack of bandwidth filters, maybe another coming soon option...
36:53 - 16 HD mode vs 18bit HD
37:10 - 14bit ADC TESTED
38:14 - Window docking & Tiling & Full Screen
39:08 - Zone triggering
40:31 - Serial decode
41:43 - NEW FEATURE: Fault Hunter
45:50 - 1GHz Passive Probe!
46:43 - Conclusion
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#ElectronicsCreators #Keysight #Oscillosocpe
reflectorbital.com
BenNBuilds balloon test video: youtube.com/watch?v=4hUNCtDTIZc
First Principles interview with Ben Nowack: youtube.com/watch?v=yDV3v0Xb4ow
S3 Interview video with Reflect Orbital: youtube.com/watch?v=4BcDoDs89rc
S3 2nd interview with Ben Nowack & Tristan Semmelhack : youtube.com/watch?v=kmC-u-fXueA
Space.com article: space.com/orbiting-mirror-boost-solar-power-production
ClimateCapital investment: climatecapital.co/portfolio
Understanding the Duck Curve: nrel.gov/docs/fy16osti/65023.pdf
Real time US energy price tracker: iea.org/data-and-statistics/data-tools/real-time-electricity-tracker
Forum: eevblog.com/forum/blog/eevblog-1537-solar-freakin-space-mirrors-reflect-orbital-debunked
00:00 - Reflect Orbital, Sunlight After Dark
01:18 - Ben Nowack from BenNBuilds Youtube channel & the balloon test
02:55 - Sun synchronous polar orbit reflecting mirror satellites
03:54 - A look at the website claims, a 5km sunlight spot for 4 minutes
05:58 - This isn't new, the Russians did it with the Znamya 2, albeit unintentionally
06:56 - Who's behind Reflect Orbital?
08:12 - What is the Duck Curve?
09:31 - CLAIM: A 10m x 10m satellite mylar reflector into a 12U Cubesat
10:09 - CLAIM: 10's to 100's if BILLIONS of dollar per year revenue!
10:35 - CLAIM: $50/MWh energy sale price after dark
11:18 - CLAIM: $175k/year revenue from each satellite & launch costs
11:58 - CLAIM: 200W/sqm? Err, in what universe?
12:24 - DaveCAD calculations
13:10 - 100kW maximum capture is reduced by the tilt angle
14:05 - 5mW/sqm. FIVE MILLIWATTS! Is this a JOKE?
14:50 - But WAIT, what if you combine and focus all the satellites?
16:02 - It gets WORSE! Capacity Factor is a problem.
18:14 - 20MWh/year WOW!, that's a lot, right? Right?
19:22 - Even 20MWh/year become ZERO if it consumes more than it produces!
20:09 - How did nobody do a back-of-the-envelope calculation?
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#ElectronicsCreators #debunking #solar
EEVblog meters: https://eevblog.store/
Cheap $20 meter AN8008: https://s.click.aliexpress.com/e/_DmVyRKn
Fluke 101 for $50: https://s.click.aliexpress.com/e/_DCF2zll
Beware of multimeter burden voltage: youtube.com/watch?v=GRRvGj8OT_A
The big beginner mistake with multimeters: youtube.com/watch?v=1LH3ICvIpL0
Forum: eevblog.com/forum/blog/eevblog-1636-ultimate-multimeter-beginners-guide
00:00 - The Ultimate Beginners Guide to Multimeters
00:35 - Display Counts Explained
01:17 - Range Switch or Push Button?
01:43 - Don't get a rechargable type or permanent backlight
02:05 - Autoranging vs Manual Ranging
03:05 - Multimeter Probes
03:36 - Rubber Holster vs Overmoulded Rubber
03:50 - Battery powered & Auto Power Off
04:06 - What can a Multimeter Measure? Voltage, Resistance and Current
04:55 - Do you need Current measurement?
05:38 - Capacitance & Continuity
06:39 - Continuity Testing Demonstrated
07:08 - Diode and LED testing
07:59 - Thermocouple Temperature Measurement
08:37 - Non-Contact Electric Field (NCV) Testing
08:57- Frequency, Duty Cycle, and Min/Max/Avg
09:18 - True RMS vs Average Responding
10:13 - Practical usage demonstrated
10:47 - Modern Multimeters are very robust
11:10 - Here is where it gets dangerous, current measurement.
12:55 - CAT Safety rating and fuses
14:23 - UL and ETL Testing Certification
14:43 - BEWARE of Battery LEAKAGE!
15:00 - Don't measure Ohms in-circuit
15:43 - Auto Touch Hold
16:17 - DC Voltage Measurements
17:35 - AC Voltage Measurement
18:08 - Current measurement demonstrated
19:50 - Capacitance measurements demonstrated
21:20 - Ohms cable measurement
22:07 - Manual ranging demonstrated
23:02 - Bargraph function
23:45 - Conclusion and Recommendations
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#ElectronicsCreators #Multimeter #Beginner
00:00 - Reolink Security Camera teardown. Water ingress how?
06:05 - CueCat barcode scanner from the early 2000's
11:20 - RF Electronics: Learn Radio Fast by Dr Phil
https://www.amazon.com.au/RF-Electronics-Learn-Radio-Fast/dp/B0CWRSZG8N/
14:23 - Ziboo Test Probe Bonanza!
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18:35 - Beelink EQR6 Ryzen 9 6900HX Mini PC
amzn.to/4dGAaKx
bee-link.com/products/beelink-eqr6
Forum: eevblog.com/forum/blog/eevblog-1635-mailbag-rf-book-probe-bonanza-beelink-ryzen-9-eqr6-pc-cuecat
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#ElectronicsCreators #Mailbag
If DCS win this insane lawsuit it will be a threat to the entire review industry, everyone will lose.
Disclaimer: This is obviously my personal opinion on an important industry news event. I make no claims about DCS batteries, I have not used them or tested them.
youtube.com/@UC825uQNChjLwDQC7B3yZdoQ
GoFundMe: gofundme.com/f/help-fight-for-truth-in-youtube-reviews
patreon.com/alloffroad
Defamation lawsuit playlist: youtube.com/playlist?list=PLA2XSq4ONOVJB3uj0xsjcZiGAS1Nd8skV
The two review videos he's being sued for:
youtube.com/watch?v=vRcSPuBob-I
youtube.com/watch?v=FuiviCPpK-Y
The Australian government have tested DCS LFP home storage batteries:
https://arena.gov.au/projects/testing-the-performance-of-lithium-ion-batteries/
Report is here: https://arena.gov.au/assets/2018/05/lithium-ion-battery-testing-public-report-12.pdf
There is some precedent for defamation by companies against individuals in Australia:
https://www.austlii.edu.au/au/journals/CommsLawB/2020/14.pdf
https://gclegal.com.au/limelight-newsletters/defaming-through-google-reviews/
Defamation act 2005: https://legislation.nsw.gov.au/view/whole/html/inforce/current/act-2005-077
The battery capacity tester discussed:
https://www.amazon.com.au/MakerHawk-Adjustable-Electronic-Intelligent-Resistance/dp/B07F3NHHST
Deep Cycle System website:
https://www.deepcyclesystems.com.au/
https://www.deepcyclesystems.com.au/dcs-battery-tech/
Reviews: https://www.productreview.com.au/listings/deep-cycle-systems-dcs
Other videos discussing the DCS lawsuit:
Louis Rossman: youtube.com/results?search_query=louis+rossmann+dcs
John Cadogan: youtube.com/watch?v=ZUA1I_oMNl4
4x4 Adventures: youtube.com/watch?v=pka5U2NgEkI
Forum: eevblog.com/forum/blog/eevblab-120-dcs-sues-youtuber-for-defamation!-threatens-entire-review-indust
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#ElectronicsCreators #dcs #Battery
Thanks to Peter Watkinson from AERL, one of my long time viewers!
AERL were the first to invent and patent the Maximum Power Point Tracker MPPT used in all modern solar systems.
Analysis video that was cut from thsi video: youtube.com/watch?v=gAu8CvMjDrU
Full talk with Peter: youtube.com/watch?v=eldXifbNm2A
https://www.aerl.com.au/mppt-solar-charge-controller-history/
https://www.aerl.com.au/
AERL Life2 datasheet: https://www.aerl.com.au/wp-content/uploads/2024/05/AERL_LiFe2_Datasheet_REV_004.pdf
Deye manual: https://www.sunovagroup.com.au/wp-content/uploads/2023/12/SUN-3-6K-SG04LP1-AU-1.pdf
Australian Standard for Home Battery Installations: https://store.standards.org.au/product/as-nzs-5139-2019
LG Battery recall: lgessbattery.com/au/recall/recallnotice.lg
Forum: eevblog.com/forum/blog/eevblog-1634-15kwh-aerl-lfp-home-storage-battery-install!
00:00 - AERL Life2 LFP Home storage battery installation
01:08 - Pre-wired 19" battery storage rack
03:23 - 4AWG cables, quick-connects and bus bar
05:03 - The old EEVblog garage lab!
05:19 - Rate my Home Assistant RPi setup
05:43 - Peter Wilkinson from AERL
06:21 - The first patented MPPT from 1984
07:49 - LFP battery management PCB
08:14 - The 5.1kWh Life2 LiFePo4 LFP Battery
08:30 - LFP vs NMC fire risk and battery safety
10:16 - Is it safe and legal to install in the gargage?
11:03 - The 19" battery rack
11:51 - How does the battery talk to the Deye hybid inverter?
12:42 - Feed-in tarrifs and battery viability
13:25 - Should you 100% cycle an LFP battery? And self managed batteries.
16:01 - Do the batteries load balance?
16:56 - Installation! (+ extra solar installer FAIL)
18:48 - The 35mm cable and crimping
20:59 - Wiring up the battery cabinet
21:48 - Installing the batteries in the rack
22:31 - First power-up smoke test
23:02 - Connecting the other batteries
24:55 - Re-connecting the grid
26:07 - The next day...
27:32 - How does the Deye inverter know about the Enphase Micro Inverters?
29:21 - Big load testing with the EV, oven, and aircon
31:17 - Conclusion
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#ElectronicsCreators #Solar #Battery
It involves German Forth compilers, ocean bottom seismic exploration, and lack of a camera culture.
Forum: eevblog.com/forum/blog/eevblab-119-the-history-of-the-eevblog-hand-photo
The ESD video Part 1: youtube.com/watch?v=sUG_sjS67K4
Part 2: youtube.com/watch?v=weJ4JdFat8o
Part 3: youtube.com/watch?v=4pwI2NebT90
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#ElectronicsCreators #History
A 60mm ball can generate 300kW in one second!
Let's bust that claim by looking at the Patent in this Part 2 video.
Part 1 is here: youtube.com/watch?v=R4WQhOVlOyA
wavja.com
Product video: youtube.com/watch?v=H-8y8uG6Ojw
Patent: patents.google.com/patent/WO2024044280A1/en?oq=wo2024%2f044280
Patent PDF: patentimages.storage.googleapis.com/ae/bc/69/1c9d2f0e33e8a7/WO2024044280A1.pdf
hackaday.com/2024/07/06/new-solar-spheres-claim-to-be-better-than-solar-panels
TIPA Solar Panel Debunked: youtube.com/watch?v=o1nWAUZVTPw
Forum: eevblog.com/forum/blog/eevblog-1633-wavja-photon-energy-system-busted-part-1
00:00 - WAVJA Photon Energy System on Hack-a-Day
01:18 - The patent: Reflecting light, where have we seen this before?
02:47 - It uses NMC?
04:03 - This sucker can power an EV
05:05 - The patent is just scientific word salad...
06:23 - "Stimulation Current" of 40Ah, HUH?
07:52 - It's not Over Unity, but it's totally Over-Unity
08:42 - 300kW Balls!
10:06 - 3D Printed using WHAT?
11:34 - How is it not an Integrating Sphere? And how does the energy get out?
15:58 - 100MW is a very conserative estimate!
17:39 - Isn't patenting over-unity not allowed?
18:37 - A 60mm sphere can generate 300kW of electricity in ONE SECOND!
19:24 - Tested with a laser power meter? HUH?
20:33 - It's got AI, trust me bro.
21:02 - UNLIMITED POWER! and transparent mirrors...
23:21 - Where is all this in the demo?
24:31 - Why do they have half balls?
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#ElectronicsCreators #Solar #Debunk
Let's examine claim with Dave's superior Photon Irradiance Solar System technology!
This is Part 1.
Part 2 looks at the patent.
wavja.com
Product video: youtube.com/watch?v=H-8y8uG6Ojw
Patent: patents.google.com/patent/WO2024044280A1/en?oq=wo2024%2f044280
Patent PDF: patentimages.storage.googleapis.com/ae/bc/69/1c9d2f0e33e8a7/WO2024044280A1.pdf
hackaday.com/2024/07/06/new-solar-spheres-claim-to-be-better-than-solar-panels
TIPA Solar Panel Debunked: youtube.com/watch?v=o1nWAUZVTPw
00:00 - WAVJA Photon Energy System on Hack-a-Day
01:51 - This looks totally legit, so I BUILT MY OWN! The Photon Irradiance Solar System
04:15 - My balls work in near darkness! And produce 5 TIMES the power as WAVJA!
05:43 - What's that you can smell?
06:52 - It's got AI?
06:31 - Let's watch the video and the claims made...
07:16 - Does it generate or absorb luminosity? It's a tad confusing...
08:10 - 30 times smaller and 7.5x the output of solar panels!
08:57 - Capturing solar power is all about the Capture Area, dummy!
09:44 - It captures light and then WHAT?
10:43 - It's Over-Unity BS!
11:39 - It's got storage? 24 hour operation !
12:59 - Their test setup and "power meter" results are demonstable BS!
16:12 - Roughly 0.1W per ball, SO revolutionary!
16:25 - The "charge" just comes from a commercial power bank, LOL! They have NOTHING!
16:25 - Only 3000 hours to charge your Electric Truck battery pack
17:05 - It gets MORE RIDICULOUS! Flying cars, shipping container drones, electric trucks!
18:47 - The Patent & the Founders
19:59 - Where does the light go? I'm confused...
20:41 - Conclusion
21:57 - I'm GIVING AWAY my P.I.S.S Technology!
Forum: eevblog.com/forum/blog/eevblog-1633-wavja-photon-energy-system-busted-part-1
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#ElectronicsCreators #Debunking #Solar
LCR meter and Transmission Line Tester design: youtube.com/watch?v=fs2MfTW4o_Q
Relay Matrix IR Measurement: youtube.com/watch?v=-mavHYV-H6o
PC104 Embedded DOS PC: youtube.com/watch?v=6ad0KP5EvpU
Linus Tech Tips Test Rack: youtube.com/watch?v=b3x28s61q3c
Test rack Part 2: youtube.com/watch?v=MbSqSZevKo8
00:00 - Why do companies still sell 2CH Oscilloscopes?
02:50 - Price Point, obviously? Education?
05:19 - Test & Production Egnineering
07:30 - 19" Rack mount Oscilloscopes
09:13 - Headless Low Profile Oscilloscopes
12:30 - Side benefits to end of production contracts...
13:03 - PXI Oscilloscopes
14:15 - Development time vs budget...
15:22 - R&D Time costs money
17:09 - Test Engienering & Linus Tech Tips test rack example
20:10 - Off-the-shelf vs Fully Custom
21:25 - One of my old test engineering products, a custom LCR / IR meter
Forum: eevblog.com/forum/blog/eevblog-1632-why-sell-2ch-oscilloscopes-test-engineering
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#ElectronicsCreators #oscilloscope #test
https://s.click.aliexpress.com/e/_DnNvolN
CMRR measured and explained: youtube.com/watch?v=vDe_BHvRpks
GaN MOSFET Experiemnts with fibre optic high voltage probe: youtube.com/watch?v=qgZgSDqmVMg
Reverse engineering the DP10007: youtube.com/watch?v=GOk1BYKSsOI
00:00 - Micsig MDP700 High Voltage Differential probe unboxing
08:50 - Basic differential probe measurement test
12:00 - Noise measurements
15:20 - CMRR measurement using FRA
21:43 - Spot frequency CMRRR measurement technique
24:51 - Measuring Unicorn farts at 100MHz
26:45 - Conclusion
Forum: eevblog.com/forum/blog/eevblog-1630-micsig-mdp700-hv-differential-probe-review
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#ElectronicsCreators #MicSig #Review
Answering a Twitter question:
https://x.com/axion2003/status/1812740667367460971
Heat Pump Hot Water vs Gas: youtube.com/watch?v=iavM2IqueM8
Heat Pump Hot Water Energy Usage: youtube.com/watch?v=WtGlolw-BxA
Pool heat pump sizing: youtube.com/watch?v=oWi6pgg1W1A&t=330s
Forum: eevblog.com/forum/blog/eevblog-1630-solar-panels-for-water-pre-heating
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#Hotwater #HeatPump #Solarpower
Ebay listing for original modern art print: https://www.ebay.com.au/itm/226241082176
Forum: eevblog.com/forum/blog/eevblog-1629-dumpster-find-a3-colour-photocopier
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#ElectronicsCreators #DumpsterDiving
Forum: eevblog.com/forum/blog/eevblog-1628-home-solar-re-install-upgrade-fail
Deye user manual: https://www.sunovagroup.com.au/wp-content/uploads/2023/12/SUN-3-6K-SG04LP1-AU-1.pdf
00:00 - New Trina, old LG, and even older LG panels
03:44 - Salute the old Sunnyboy 3kW string inverter
05:23 - New 415W Trina, old 370W LG, and even older 250W LG panels. Plus some bonus 440W Trina panels.
06:45 - The old fuse box
10:00 - Roof racking installation
14:49 - Old 370W LG panels are getting reused
16:36 - Panel installation on the roof
20:46 - Timelapse
21:35 - New 5kW Deye Hybrid inverter installation has problems...
24:35 - And now the Solar Analytics system fails!
25:56 - I got it working!
30:30 - The Electrician with no Multimeter!
31:02 - Solar Assistant running on a Raspberry Pi 3
33:51 - Summary of the dodgy half and half pizza install
35:28 - Update on the various monitoring systems, Enphase, Solar Analytics, and MyEnergi Zappi
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#ElectronicsCreators #solarpower
https://xentronics.com.au/
The Amp Hour Talk 1:
theamphour.com/624-design-manufacturing-consulting-with-scott-williams-from-xentronics
Talk 2:
theamphour.com/645-moving-down-the-stack-with-scott-williams
Forum: eevblog.com/forum/blog/eevblog-1627-electronex-engineering-consultancy-with-xentronics
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#ElectronicsCreators #Engineering #consulting
A short story. LOL along as they attempt to reinstall and commision my Enphase microinverter solar power system.
Aircon Install FAIL video: youtube.com/watch?v=XD5Emhqd5Ks
Forum: eevblog.com/forum/blog/eevblog-1626-you-had-one-job!-(solar-power-install-fail)
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#ElectronicsCreators #solarpower #Enphase
A talk with Mark Isherwood from Rapid-Tech, the Australian dealer for Uni-T.
https://rapid-tech.com.au/uni-t-instruments/
Forum: eevblog.com/forum/blog/eevblog-1625-electronex-scope-wars-the-rise-of-uni-t
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#ElectronicsCreators #Electronex #oscilloscope
Thanks to Ben Price for answering the questions even though he's the mechnical engineer!
liquidinstruments.com
Forum: eevblog.com/forum/blog/eevblog-1624-electronex-liquid-instruments-moku-oscilloscope
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#ElectronicsCreators #Australia #oscilloscope
Forum: eevblog.com/forum/blog/eevblog-1623-electronex-2024-walkthrough
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#ElectronicsCreators #Electronex #walkthrough
A customer returned an EEVblog BM235 multimeter because it was "Faulty"
Was it? Let's find out what happens when you try and measuse a CAN bus with a multimeter.
Forum: eevblog.com/forum/blog/eevblog-1622-dont-make-this-multimeter-mistake
00:00 - Don't measure a CAN bus with a multimeter!
01:50 - Trying different multimeters
05:21 - Oscilloscope CAN bus measurement
06:30 - BEWARE measuring resistors in-circuit
08:16 - Power supply voltage example
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#ElectronicsCreators #Multimeter #Tutorial
A look at the RadiaCode Radiation Monitor, and the LattePanda Mu Intel N100 Compute Module.
radiacode.com
amzn.to/3yV5Gp4
lattepanda.com/lattepanda-mu
dfrobot.com/kit-004.html
Github: github.com/LattePandaTeam/LattePanda-Mu/tree/main/Electricals/Examples/%5BDFR1141%5DFull%20EVA%20Carrier%20for%20LattePanda%20Mu
Part 2: youtube.com/watch?v=UE_srZZdPjM
00:00 - Mailbag
00:30 - Radiacode 103 Radiation Detector & Spectrometer
07:48 - Teardown
14:09 - LattePanda Mu Intel N100 Compute Module
25:22 - Power up
Forum: eevblog.com/forum/blog/eevblog-1621-mailbag-radiacode-radiation-monitor-lattepanda-mu-compute-modu
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#ElectronicsCreators #Mailbag
Will it contain the quality components claimed?
Also a topology reverse engineering of all the stages.
UPDATE: Deye have responded and asked me to make this post:
"As an employee of Deye in Australia, I would like to address this issue with complete transparency. Deye, as a globally leading manufacturer of energy storage inverters, has always been committed to providing our customers with cost-effective and high-quality products. Our product failure rates are relatively low compared to our peers in the industry.
During the past couple of years, the pandemic caused significant supply chain challenges, making it difficult to procure certain components while the demand for energy storage solutions surged. To ensure continuous product supply, we had to use alternative components. Please rest assured that all these alternative components are A-grade and have undergone rigorous testing to meet industry standards and certification requirements.
The inconsistency between the components in our products and those mentioned in our catalog is due to our failure to update the catalog (2022-2023 Version)in a timely manner. We sincerely apologize for this oversight. We have taken immediate steps to rectify this and will update our catalog as soon as possible._ "
00:00 - A generous and coincidental donation from a viewer
00:37 - We have the brochure, let's check the claims!
02:44 - Front panel PCB
03:46 - The gigantic heatsink
04:44 - Nippon Chemi-Con Capacitors? REALLY?
05:54 - Heatsunk and potted inductors and transformer teardown
10:19 - Main PCB's and the confusing layout
12:53 - The fused battery input
13:37 - Are the MOSFET's and IGBT's as advertised?
15:10 - SMD high current links for PnP benefits
16:14 - Detailed circuit topology schematic reverse engineering
18:29 - Earth connection testing
19:07 - MOSFET vs IGBT
19:51 - Grid side IGBT switching and tri-level switching
20:46 - Solar Panels are capacitors to earth and that screws the CMRR
21:34 - HERIC switching topology and patent lawsuits!
23:50 - Grid and Load connections
25:07 - The battery bidirectional DC-DC converter
28:14 - H-Bridge and parallelism
30:14 - Switching drive stages
31:25 - Main processor PCB and a TI DSP ripoff?
32:51 - Redundant backup DSP controller?
34:40 - Genrator and Load conection relay switching
35:49 - Panasonic Relays? WHERE?
37:02 - User Connection PCB
38:25 - Conclusion
Datasheets:
fet.discoveree.io/datasheet.php?view=pdf&file=crmicro/crsq027n10n.pdf
magnachip.com/wp-content/uploads/2020/10/MBQ40T65QES-1.pdf
lcsc.com/datasheet/lcsc_datasheet_2209081730_Wuxi-NCE-Power-Semiconductor-NCE40TS120VTP_C5160411.pdf
wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2211151030_Vishay-Intertech-VS-EPX3007L-N3_C5263741.pdf
ADVchip DSP: file.elecfans.com/web2/M00/6F/21/poYBAGNEwS-AKpNeAIfcFmyDrAQ938.pdf
AVP32F335 DSP: http://advancechip.com/mobile/32fd/61.html
Fraunhofer ISE Successful in Patent Infringement Process for HERIC Inverter Technology:
https://www.ise.fraunhofer.de/en/press-media/press-releases/2022/fraunhofer-ise-successful-in-patent-infringement-process-for-inverter-technology.html
Forum: eevblog.com/forum/blog/eevblog-1620-deye-solar-hybrid-inverter-extreme-teardown
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#ElectronicsCreators #solarinverter #Teardown
00:00 - THE Don McKenzie! and a bonanza of embedded history
dontronics.com/jump-list.html
dontronics.com/First-pc.html
08:44- PBUFF prototype
18:38 - Photon, the world's longest battery life camera (Open Source)
https://toaster.llc/photon/index.html
29:19 - Sanyo ICC-811 Mini Calculator from 1972
37:33 - Japanese Gadgets: USB to Bluetooth converter + USB Cable Tester
bit-trade-one.co.jp
43:28 - Professional Electronic Design Best Practices Book
amzn.to/3R3oV6a
51:08 - Hoppes Brain MT-200 package adapter
hoppesbrain.com
Me on the vintage computer podcast:
podcasts.apple.com/us/podcast/david-l-jones-eevblog-and-fun-with-old-computers/id1505517834?i=1000502460928
Forum: eevblog.com/forum/blog/eevblog-1619-mailbag-featuring-don-mckenzie
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#ElectronicsCreators #Mailbag
NOTE: Re-edited from an old impromptu video to remove all unrelated stuff about the dumpster whiteboard I found.
Forum: eevblog.com/forum/blog/eevblog1618-how-to-derive-the-equation-for-charge-in-a-capacitor
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#ElectronicsCreators #tutorial #Theory
Part 2: youtube.com/watch?v=5mueaTsus8o
Counting LED photons: youtube.com/watch?v=TJcMgoJ4DOE
Forum: eevblog.com/forum/blog/eevblog-1617-architectural-led-lighting-build-test
Datasheets:
https://havit.com.au/products/hv9693-6080-deep-square-up-down-aluminium-profile
cdn.shopify.com/s/files/1/1760/2029/files/HV9723-IP20-240-XK-2_Spec_Sheet_JUN23.pdf
cdn.shopify.com/s/files/1/1760/2029/files/HV9783-IP20-168-XK_Spec_Sheet_JUN23.pdf
https://havit.com.au/products/hv9783-ip20-168-4k-32-6w-ip20-led-strip-4000k
00:00 - Custom architectural LED wall wash lights
01:27 - Dual sided aluminimum profile
03:45 - 19W/m LED strip
06:08 - 32W/m LED strip
08:20 - Thermal adhesive backing
08:53 - EcoLamp LED Drivers
10:36 - Cable manage the design for replacement
12:30 - Testing
13:10 - LED strip analysis under the microscope
15:04 - Bench testing and verifiying the 19W/m spec
17:28 - Finding the SMD LED constant current driver chip
21:56 - Found it, the Crosschip DS-INK1101
24:47 - Bench testing and verifiying the 32W/m spec
26:52 - Bench testing the dimming
30:09 - Testing the driver adjustable dimming with external input
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#ElectronicsCreators #LED #Lighting
weller-tools.com/eu/gb/filtration/products/solder-fumes/zero-smog-el-kit-1
Part 2: youtube.com/watch?v=yi5pb_l8U94
Cheap HEPA fume extractor: youtube.com/watch?v=ffaiKZMU0Lw
Forum: eevblog.com/forum/blog/eevblog-1616-weller-zero-smog-fume-extractor-review
00:00 - Unboxing the Weller Zero Smog EL kit
04:52 - Teardown
10:53 - Soldering test
13:44 - Side view soldering test
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#ElectronicsCreators #Review #Soldering
Part 2: youtube.com/watch?v=NLwgFYt1pjA
Lenovo IdeaCentre Dumpster find: youtube.com/watch?v=-FszeHoK2Ck
Forum: eevblog.com/forum/blog/eevblog-1615-dumpster-dive-hp-pro-one-pc
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#ElectronicsCreators #dumpsterdiving #HP
Cyber City Circuits: youtube.com/@cybercitycircuits
twitter.com/MakeAugusta/status/1788651197055827992
Forum: eevblog.com/forum/blog/eevblog-1614-circuit-design-tip-crystal-oscillators
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#ElectronicsCreators
What can engineers do with an extra mm in thickness? How about double the battery capcity?
Better repairability would have been nice too!
Featuring DaveCalc.
twitter.com/peteoxenham/status/1788016699477983699
Forum: eevblog.com/forum/blog/eevblab-118-new-ipad-pro-volumetric-engineering-vs-marketing
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#ElectronicsCreators #Apple #iPadPro
Replacing the rechargeable lithium ion batteries wasn't quite as simple as expected though...
And is this thing worth $4500?
Forum: eevblog.com/forum/blog/eevbog-1613-audiophile-repair-chord-hugo-dac
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#ElectronicsCreators #Repair #audio
Teardown photos: eevblog.com/2024/04/27/eevblog-1612-siglent-sds1000x-hd-12-bit-oscilloscope-teardown
SDS2000X HD Teardown: youtube.com/watch?v=lUAevbBh0rQ
Forum: eevblog.com/forum/blog/eevblog-1612-siglent-sds1000x-hd-12-bit-oscilloscope-teardown
00:00 - Siglent SDS1204X HD 12 bit Oscilloscope
00:39 - Unboxing problem...
01:21 - For the film afficionardoes
01:31 - Brief look over
04:33 - Comparison to SDS2000X HD
05:17 - Teardown
07:26 - PSU differences
09:17 - Main PCB comparison to 2000X HD
12:35 - Front End comparison
14:56 - Cooling
15:15 - Front End Tweak function looks SCARY...
16:25 - There is no Manual memory depth setting
18:02 - ZERO BNC microphonics!
19:13 - Noise measurement
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#ElectronicsCreators #Siglent #Teardown
Schmitt Trigger video: youtube.com/watch?v=Ht48vv0rQYk
Forum: eevblog.com/forum/blog/eevblog-1611-top-5-jellybean-7400-4000-logic
00:00 - Top 5 TTL and CMOS Jellybean chips
00:37 - Different 7400 series family types
01:52 - What makes a Jellybean component
03:27 - CD4051 / CD4052 / CD4053 Analog Multiplexer Switch
17:42 - 74HC595 8 Bit Latched Shift Register
20:58 - Used in the MXO4 oscilloscope
24:09 - Driving LED's
26:12 - 74HC74 Dual D Flip Flop
27:00 - Used in the Rigol HDO1000 Oscilloscope
28:14 - Uses for a D Flip Flop
28:53 - Special Mention 74HC374/ 74HC574
30:35 - 74HC14 Hex Schmitt Trigger Inverter
35:18 - Last chip, what about NAND NOR or XOR?
36:06 - 74HC245
The jellybean Components Playlist: youtube.com/playlist?list=PLvOlSehNtuHv268f0mW5m1t_hq_RVGRSA
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#ElectronicsCreators #top5 #tutorial
SUN-5K-SG04LP1-AU
Forum: eevblog.com/forum/blog/eevblog-1610-deye-hybrid-solar-inverter
Joule Power: https://joulepower.com.au/
Teardown video: youtube.com/watch?v=UO1lDaIDBo0
Manual: https://www.sunovagroup.com.au/wp-content/uploads/2023/12/SUN-3-6K-SG04LP1-AU-1.pdf
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#ElectronicsCreators #Deye #solar
Opamp Tutorial Playlist: youtube.com/playlist?list=PLvOlSehNtuHu2FviAaZaiyXwN41G4b1Lf
Cascaded Compound Amplifiers: youtube.com/watch?v=ZvT9hHG17tQ
SMD soldering video: youtube.com/watch?v=KzC12xtHuXo
Forum: eevblog.com/forum/blog/eevblog-1609-composite-amplifier-tutorial-practical-demo
00:00 - Composite vs Compound Amplifiers
02:53 - How a Composite Amplifier works
05:09 - Why not just cascade them?
07:23 - This doesn't just apply to opamps
08:24 - An example with gain, and another way to look at it
09:37 - Composite gain vs stage gain
11:19 - What's the catch? + rule of thumb for stability
12:42 - Another example: Composite precision high bandwidth amplifier
14:50 - Breadboard demonstration of Composite vs Compound amplfiers
19:09 - Changing to Composite configuration and Magic Happens
20:07 - More magic as it compensates for the buffer drop too
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#ElectronicsCreators #opamp #Tutorial
00:00 - Jumperless Breadboard from Architeuthis Flux & WokWi
tindie.com/products/architeuthisflux/jumperless
hackaday.io/project/191238-jumperless/log/222858-getting-started-using-your-jumperless
wokwi.com
digikey.com/en/maker/projects/jumperless/2e62cc88ee6145bc924041dd486de76f
theamphour.com/599-an-interview-with-uri-shaked-wokwi-com
08:42 - Trying the software, it didn't go so well...
21:20 - Automated probe connection function
22:35 - My old IC Tester project
23:32 - 16TB Hard Drive
25:26 - Modius Headband: Induce sickness to loose weight?
Lime Forge Ltd Sense See Bike Light : seesense.cc/collections/icon3/products/new-see-sense-icon3
29:36 - Assembly Specialists Breadboard
assemblyspecialist.com/WebStore/breadboards.html
35:11 - Sanwa PS8A Pocket Multimeter
overseas.sanwa-meter.co.jp/products/digital_multimeters/ps8a.html
45:26 - BENQ IdeaCam S1 Webcam
benq.com/en-au/ideacam/supreme/s1-plus.html
Forum: eevblog.com/forum/blog/eevblog-1608-mailbag
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#ElectronicsCreators
AlienTek DP100: https://s.click.aliexpress.com/e/_DeWCLIN
Forum: eevblog.com/forum/blog/eevblog-1607-psu-switching-noise-reduction-via-vibration
Linked videos:
Tesla AI PSU problem: youtube.com/watch?v=YIbQ3nudCA0
Vibration coherence: youtube.com/watch?v=uus_cpZiqsU
Vibration testing: youtube.com/watch?v=1Y2L6QLOi-c
AlienTek DP100 PSU: youtube.com/watch?v=Pd6LG7iP2GQ
Ceramic Cap Piezeoelectric effect: youtube.com/watch?v=F2gX-R1k7MM
Ceramic Capacitor Cracking: youtube.com/watch?v=QgKY5QWehME
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#ElectronicsCreators #PSU #Noise
https://s.click.aliexpress.com/e/_DeWCLIN
PSU Noise measurement: youtube.com/watch?v=G8Qoj3TpO9A
Forum: eevblog.com/forum/blog/eevblog-1606-$45-alientek-dp100-100w-usb-c-psu-review
00:00 - AlienTek DP100 100W USB-C PSU Unboxing
02:43 - Power on and operation
08:57 - User Manual
10:01 - Trying USB-C source
10:44 - Setting Menu
12:00 - uSupply Inception
12:55 - Physical size comparison
13:16 - Teardown
14:44 - PCB Inspection and design analysis
18:14 - BOM Consolidation & MOSFET's
19:15 - USB Power Delivery Chip
20:46 - MP9928 Buck Converter & PWM Current Limiting
23:37 - Zero drift opamps
24:14 - Processor
24:52 - Connector LED lighting
26:09 - Housing
26:39 - DC input testing
27:28 - Output noise measurement
28:57 - Classic Dave GOOF
29:57 - USB-A vs USB-C input noise
31:37 - Voltage Accuracy test
32:11 - Real noise measurements
33:08 - MAGIC SMOKE!
34:12 - Max 100W load testing
35:45 - Overshoot and CV/CC mode change testing
37:35 - Conclusion
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#ElectronicsCreators #Review #PowerSupply
A teardown, and powerup on the bench to find the mysterious fart noises.
Will it get repaired, or will the fault do a Harold Holt?
Part 2: youtube.com/watch?v=u7sVGnrf0P0
Forum: eevblog.com/forum/blog/eevblog-1605-chasing-fart-noises-jbl-charge-3-repair
00:00 - JBL Charge 3 Waterproof Speaker Fault
02:17 - Teardown
07:13 - Drivers
08:16 - Passive Radiators
09:58 - The Case Moulding
10:46 - Main PCB
11:36 - Under the microscope
15:30 - What's this Power Rail doing?
18:07 - Power Rail Capture
20:16 - Are we chasing a red herring down a rabbit hole?
20:56 - Trying to capture the fault: Oscilloscope vs Microphone
22:22 - The Fault has done a Harold Holt
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#ElectronicsCreators #repair #JBL
A short video demonstrating the impact of Burden Voltage / Shunt Resistance on current measurement.
Mutlimeter Shunt Tutorial Part1: youtube.com/watch?v=jx0dryLmUEQ
Part 2: youtube.com/watch?v=xSEYPP5Xsi0
Forum: eevblog.com/forum/blog/eevblog-1604-beware-multimeter-burden-voltage
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#ElectronicsCreators #Multimeter #tutorial
Press F in the chat.
€5M of taxpayer money down the drain. That money could have bought a 5MW commercial solar farm that produced 15 times the output power, and lasted decades longer.
Forum: eevblog.com/forum/blog/eevblog-1603-colas-wattway-solar-roadways-is-dead
Reference links:
auto-moto.com/en-bref/cette-route-solaire-qui-a-coute-5-millions-d-euros-va-etre-demantelee-30624
https://actu.fr/normandie/tourouvre-au-perche_61491/on-s-attendait-a-rencontrer-des-problemes-la-route-solaire-de-tourouvre-au-perche-une-idee-pas-si-lumineuse_53438905.html
time.com/4616912/solar-panel-france
theguardian.com/environment/2016/dec/22/solar-panel-road-tourouvre-au-perche-normandy
forbes.com/sites/johnparnell/2019/08/21/frances-solar-highway-was-always-a-road-to-nowhere/?sh=783cb5c971b6
wired.co.uk/article/france-solar-panel-roads
businessinsider.com/first-solar-road-france-failure-photos-2019-8
colas.com/en/innovation/greater-mobility-lower-impact
mymodernmet.com/france-wattway-solar-road
marketwatch.com/guides/solar/solar-farm-cost/#:~:text=Solar%20Project%20Size&text=At%20an%20average%20price%20of,the%20intention%20of%20selling%20electricity.
popularmechanics.com/technology/infrastructure/a28720252/french-solar-road-failure
digitaltrends.com/cars/frances-first-ever-solar-panel-road-appears-to-have-some-serious-issues
wattwaybycolas.com/en/references/photos.html
Technical specs: wattwaybycolas.com/media/documents/documents-en-anglais/dp-wattway-pack-gb.pdf
Map: https://www.google.com.au/maps/@48.5872378,0.647139,3a,75y,189.86h,63.17t/data=!3m6!1e1!3m4!1sRGiblnJFqgFm2wye5_F_1Q!2e0!7i16384!8i8192?entry=ttu
My previous videos on Colas Wattway:
youtube.com/watch?v=RjbKYNcmFUw
youtube.com/watch?v=rpwx-8s1M38
The near 18 year grift of Solar Freak'n Roadways:
startengine.com/offering/solar-roadways
00:00 - Colas Wattway Solar Roadways is DEAD
07:47 - Not even the biggest road construction company can make Solar Roadways work
08:32 - Even Colas admit it's a failed concept
10:13 - How may homes can it power?
11:29 - How big a solar farm can you buy for €5M ?
13:16 - One final walk down the biggest solar roadway in the world
16:37 - What ever happened to Solar Freak'n Roadways?
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#ElectronicsCreators
How VFD displays work: youtube.com/watch?v=gZIRPJt69sM
Mud run video: youtube.com/watch?v=yAahT8_P-_E
Tektronix autopsy: youtube.com/watch?v=VZCokbsTwmQ
Forum: eevblog.com/forum/blog/eevblog-1603-sony-amplifier-repair
00:00 - Sony HCD-SBT20B Bluetooth Stereo with a water ingress problem
01:17 - Water isn't that bad actually, even mud.
02:49 - Comically long screwdriver time
04:09 - Vacuum Fluorescent display for all you VFD fanboys
05:10 - Annoying construction
06:14 - Logic level problem? Doesn't seem to be the PSU.
07:57 - Yuck!
09:58 - PCB Cleaning time
12:11 - Did the cleaning work?
13:28 - Hang on, I think I see something...
14:36 - More corrosion
15:21 - Back to measuring voltages on the VFD
17:15 - Handy use of Auto Hold
18:00 - VFD dispaly under the microscope
19:33 - Cathode measurement
20:13 - Anode connection tracing
22:10 - I wouldn't have designed it like this
23:08 - Sanity check
24:32 - What's in the can?
28:16 - Schematic time. Sony service manuals are something else
33:22 - Don't come-a-gutsa on dual diode pinouts
35:16 - Let's power it up on the bench
37:19 - There's something very strange about this...
40:04 - Oh FFS!
42:03 - Now it'll work...
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#ElectronicsCreators #Repair #Sony
Extracted from a hacking video #717: youtube.com/watch?v=clUVEyi_YNM
Forum: eevblog.com/forum/blog/eevblog-1601-how-vfd-(vacuum-fluorescent)-displays-work
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#ElectronicsCreators #VFD #Tutorial