EEVblog No Script, No Fear, All Opinion

Building and testing an architectural wall wash LED Lighting solution. Part 2: https://www.youtube.com/watch?v=5mueaTsus8o Counting LED photons: https://www.youtube.com/watch?v=TJcMgoJ4DOE Forum: https://www.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 https://cdn.shopify.com/s/files/1/1760/2029/files/HV9723-IP20-240-XK-2_Spec_Sheet_JUN23.pdf https://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 – …

How much does the Weller HEPA 13 Zero Smog EL Kit fume extractor suck? https://www.weller-tools.com/eu/gb/filtration/products/solder-fumes/zero-smog-el-kit-1 00:00 – Unboxing the Weller Zero Smog EL kit 04:52 – Teardown 10:53 – Soldering test 13:44 – Side view soldering test Part 2: https://www.youtube.com/watch?v=yi5pb_l8U94 Cheap HEPA fume extractor: https://www.youtube.com/watch?v=ffaiKZMU0Lw Forum: https://www.eevblog.com/forum/blog/eevblog-1616-weller-zero-smog-fume-extractor-review/ Podcast (podcast2): Download

It’s been slim pickings in the dumpster room in recent times, will this HP Pro One 400 all-in-one touch screen PC be a winner? Part 2: https://www.youtube.com/watch?v=NLwgFYt1pjA Lenovo IdeaCentre Dumpster find: https://www.youtube.com/watch?v=-FszeHoK2Ck Forum: https://www.eevblog.com/forum/blog/eevblog-1615-dumpster-dive-hp-pro-one-pc/ Podcast (podcast2): Download

You can easily replace any chip crystal circuit with a dedicated external crystal oscillator. Reducing your BOM count, and making your design easier, smaller, and potentially more robust. Cyber City Circuits: https://www.youtube.com/@cybercitycircuits https://twitter.com/MakeAugusta/status/1788651197055827992 Forum: https://www.eevblog.com/forum/blog/eevblog-1614-circuit-design-tip-crystal-oscillators/ Podcast (podcast2): Download

Apple just released the new iPad Pro M4. Normally I wouldn’t care, but it’s about Engineering vs Marketing, and we can run some numbers, so let’s dive in. What can engineers do with an extra mm in thickness? How about double the battery capcity? Better repairability would have been nice …

Simple repair on the neighbours $4500 Audiophile Chord Hugo DAC. Replacing the rechargeable lithium ion batteries wasn’t quite as simple as expected though… And is this thing worth $4500? Forum: https://www.eevblog.com/forum/blog/eevbog-1613-audiophile-repair-chord-hugo-dac/ Podcast (podcast2): Download

Siglent SDS1000X HD 12 bit Oscilloscope Teardown and brief play, noise measurement, and comparison to the SDS2000X HD Hires photos: SDS2000X HD Teardown: https://www.youtube.com/watch?v=lUAevbBh0rQ Forum: https://www.eevblog.com/forum/blog/eevblog-1612-siglent-sds1000x-hd-12-bit-oscilloscope-teardown/ 00:00 – Siglent SDS1000X HD 12 bit Oscilloscope 00:39 – Unboxing problem… 01:21 – For the film afficionardoes 01:31 – Brief look over 04:33 …

The TOP 5 Jellybean 7440 and 4000 series logic chips. Forum: https://www.eevblog.com/forum/blog/eevblog-1611-top-5-jellybean-7400-4000-logic/ Schmitt Trigger video: https://www.youtube.com/watch?v=Ht48vv0rQYk 00:00 – Top 5 TTL and CMOS Jellybean chips 00:37 – Different 7400 series family types 01:52 – What makes a Jellybean component 3:27 – CD4051 / CD4052 / CD4053 Analog Multiplexer Switch 17:42 …

A look at the Deye 5kW Hybrid Solar Inverter and attempted teardown. SUN-5K-SG04LP1-AU Forum: https://www.eevblog.com/forum/blog/eevblog-1610-deye-hybrid-solar-inverter/ Joule Power: https://joulepower.com.au/ Teardown video: https://www.youtube.com/watch?v=UO1lDaIDBo0 Manual: https://www.sunovagroup.com.au/wp-content/uploads/2023/12/SUN-3-6K-SG04LP1-AU-1.pdf Podcast (podcast2): Download

A lot of texbooks don’t teach Composite Amplifiers, but they are one of the most used circuit configurations to solve real world design poblems where you have multiple conflicting specifications. Opamp Tutorial Playlist: https://www.youtube.com/playlist?list=PLvOlSehNtuHu2FviAaZaiyXwN41G4b1Lf Cascaded Compound Amplifiers: https://www.youtube.com/watch?v=ZvT9hHG17tQ Forum: https://www.eevblog.com/forum/blog/eevblog-1609-composite-amplifier-tutorial-practical-demo/ 00:00 – Composite vs Compound Amplifiers 02:53 – How a …

More mailbag! 00:00 – Jumperless Breadboard from Architeuthis Flux & WokWi https://www.tindie.com/products/architeuthisflux/jumperless/ https://hackaday.io/project/191238-jumperless/log/222858-getting-started-using-your-jumperless https://wokwi.com/ https://www.digikey.com/en/maker/projects/jumperless/2e62cc88ee6145bc924041dd486de76f https://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 …

Physically vibrating your power supply at a sub harmonic of your PSU switching frequency can potentially lower your system noise. A practical demonstration. AlienTek DP100: https://s.click.aliexpress.com/e/_DeWCLIN Forum: https://www.eevblog.com/forum/blog/eevblog-1607-psu-switching-noise-reduction-via-vibration/ Linked videos: Tesla AI PSU problem: https://www.youtube.com/watch?v=YIbQ3nudCA0 Vibration coherence: https://www.youtube.com/watch?v=uus_cpZiqsU Vibration testing: https://www.youtube.com/watch?v=1Y2L6QLOi-c AlienTek DP100 PSU: https://www.youtube.com/watch?v=Pd6LG7iP2GQ Ceramic Cap Piezeoelectric effect: https://www.youtube.com/watch?v=F2gX-R1k7MM …

AlienTek DP100 100W USB-C PSU REVIEW https://s.click.aliexpress.com/e/_DeWCLIN PSU Noise measurement: https://www.youtube.com/watch?v=G8Qoj3TpO9A Forum: https://www.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 …

Dave is chasing fart noises in this JBL Charge 3 waterproof speaker. 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: https://www.youtube.com/watch?v=u7sVGnrf0P0 Forum: https://www.eevblog.com/forum/blog/eevblog-1605-chasing-fart-noises-jbl-charge-3-repair/ 00:00 – JBL Charge 3 Waterproof Speaker Fault …

Burden Voltage is a BIG trap with Multimeters, don’t get caught out! A short video demonstrating the impact of Burden Voltage / Shunt Resistance on current measurement. Mutlimeter Shunt Tutorial Part1: https://www.youtube.com/watch?v=jx0dryLmUEQ Part 2: https://www.youtube.com/watch?v=xSEYPP5Xsi0 Forum: https://www.eevblog.com/forum/blog/eevblog-1604-beware-multimeter-burden-voltage/ Podcast: Download