EEVblog

By David L. JonesTechnology Education

EEVblog episodes

July 07, 2025 eevBLAB 130 – Youtube Are FINALLY Demonetising AI Slop Channels
It looks like Youtube are finally going to do something about the AI slop channels that are plaguing Youtube? It’s called YOUtube for a reason. If you want AI info slop, go to INFOtube.
Forum: https://www.eevblog.com/forum/blog/eevblab-130-youtube-are-finally-demonetising-ai-channels/
15 min
June 30, 2025 EEVblog 1693 – Uni-T UTE310 Power Meter Teardown & Practical Demo
A teardown of the Uni-T UTE 310 Digital Power Meter, and an example meausing the power consumption of the new Brymen BM786BT multimeter in bluetooth data transmission mode.
https://uni-trendus.com/products/ute310-digital-power-meter
Forum: https://www.eevblog.com/forum/blog/eevblog-1693-uni-t-ute310-power-meter-teardown-practical-demo/
00:00 – Uni-T UTE310 Power Meter
02:44 – Teardown
06:54 – Power supply
07:47 – FPGA and ARM processors (plural)
09:23- Seperate isolated volatge and current measurements
11:28 – Special Snowflake shunt resistor
14:04 – Turn on and a looks at the current ranges
15:04 – Flashing LEDs
15:51 – Shunt resistor heatsink sizing
16:46 – Inside the metal cans. ADC’s + Amplifiers. Talking head Dave, PCB walkthrough
27:05 – Power on, offset error, and the tyranny of ranging
30:19 – Demonstration with BM786BT multimeter battery consumption
34:51 – Current waveform view
39:11 – The offset has drifted
40:43 – Conclusion
43 min
June 30, 2025 EEVblog 1692 – $130 Fluke 17B MAX Multimeter REVIEW
Is a US$130 Fluke multimeter any good? A review of the Fluke 17B MAX Multimeter
Forum: https://www.eevblog.com/forum/blog/eevblog-1692-$130-fluke-17b-max-multimeter-review/
Why are Fluke meters so expensive: https://www.youtube.com/watch?v=ay9wFQAW19Y
Fluke 17B multimeter teardown: https://www.youtube.com/watch?v=TbEtcpM0RGc
Fluke vs Brymen Teardown: https://www.youtube.com/watch?v=3Hlmq57FQQk
00:00 – US$130 Fluke 17B MAX Multimeter
02:32 – Construction
04:52 – What’s in the (China Only) box?
06:14 – New TL31 probes for electronics use
07:03 – Teardown
11:32 – Input Alert Jacks
13:22 – Bottom of PCB
14:54 – Really glossy solder mask
16:35 – Data port?
17:13 – Pro Tip: Replacing self tapping screws
18:10 – Power On and that BIG display!
19:11 – Backlight. Dim but nice.
19:43 – Continuity tester
20:59 – The Range Switch has changed
21:32 – No TouchHold
22:46 – The capacitance range accuracy FAILED
23:37 – Accuracy tests
24:48 – High Voltage Overload testing
26:18 – 240V Mains up the clacker
26:52 – Ohms accuracy testing
27:33 – Drop Testing
27:58 – Current accuracy testing
29:09- LED testing kinda sucks, and more capacitor testing
29:39 – Capacitor testing SUCKS
31:44- Battery Life measurements
33:40 – Conclusion
38 min
June 13, 2025 EEVblog 1691 – Uni-T UDP6731 360W Bench PSU REVIEW
The Uni-T UDP6700 series UDP6731 360W slimline Bench Lab Power Supply REVIEWED
https://instruments.uni-trend.com/products/dc-power-supplies/UDP6700
https://uni-trendus.com/products/udp6731-360w-basic-dc-switching-power-supply-80v-15a
00:00 – Uni-T UDP6731 PSU
01:30 – Beware of thermal stacking
02:55 – Teardown
07:35 – Sneaky fan
11:24 – Remember the Riden RD6006, also 350W
13:10 – Power up
16:04 – The display and UI
18:14 – Instantaneous knob
19:16 – Only 600 memory settings, meh.
20:10 – No ability to disable voltage sense, and some oddities.
23:22 – Accuracy spec
26:13 – What fan noise?
27:45 – Have I KILLED it?
28:46 – WTF is going on here?! Rigol or Uni-T problem?
32:05 – Did my Rigol Electronic Load survive?
33:03 – The Uni-T survivied a brutal oscillation test
33:47 – Ripple & Noise
35:36 – 2ohm load waveform
36:41 – Switch on and other waveform tests
40:31 – Remote software
44:00 – Lister mode tested
47:39 – Woah, this is a problem!
49:46 – Conclusion
Forum: https://www.eevblog.com/forum/blog/eevblog-1691-uni-t-udp6731-360w-bench-psu-review/
Hires photos:
52 min
June 05, 2025 EEVblog 1690 – Mailbag: Zifnu LED, Quantum Diamonds, Logic Gates, M.2 NAS
More Mailbag!
00:00 – Zifnu K-16 Kickstarter LED light
https://www.zifnu.com/
11:02 – Qoool Sensing: Diamond Quantum Fluorescence Demo
https://qoool-sensing.org
16:41 – Logic Gate Educational Demo Board
https://logicgat.es/
20:15 – Beelink ME Mini 6 x M.2 Slot Home Storage NAS
https://www.bee-link.com/products/beelink-me-mini-n150?ref=OKJKQ
Forum: https://www.eevblog.com/forum/blog/eevblog-1690-mailbag-zifnu-led-quantum-diamonds-logic-gates-m-2-nas/
39 min
June 05, 2025 EEVblog 1689 – ANOTHER Dumpster Diving A3 Colour Photocopier!
Another Colour A3 photocopier in the dumpster! Is this an upgrade?
Fuji-Xerox Docucentre V C4476
Forum: https://www.eevblog.com/forum/blog/eevblog-1689-another-dumpster-diving-a3-colour-photocopier/
10 min
May 30, 2025 EEVblog 1688 – Constant Current Sources EXPLAINED + DEMO
DC Constant Current sources explained and demonstrated.
Forum: https://www.eevblog.com/forum/blog/eevblog-1688-constant-current-sources-explained-demo/
Voltage and Current Source Theory: https://www.youtube.com/watch?v=AQK7RyecVW0
DC Circuit Fundamentals Playist: https://www.youtube.com/playlist?list=PLvOlSehNtuHtVLq2MDPIz82BWMIZcuwhK
00:00 – Constant Current Sources
11:08 – Practical uses of constant current sources
14:00 – Circuit examples
19:13 – TL431 Example
20:25 – LM317 CC circuit
21:42 – Low Side Source vs High Side Current Sink
24:19 – Bench examples
26:24 – Your PSU is a CC generator!
28:04 – Keithley 225 Constant Current Source
31:09 – LED strip example of Compliance Voltage
35 min
May 22, 2025 EEVblog 1687 – A Pointless Alkaline Battery LEAKAGE Repair
The repair of alkaline battery leakage in this Keysight U1177A Bluetooth mulitmeter adapter was, well, pointless….
Forum: https://www.eevblog.com/forum/blog/eevblog-1687-a-pointless-alkaline-battery-leakage-repair-462018/
13 min
May 20, 2025 EEVblog 1686 – Electronex 2025 Melbourne – Walkaround
A complete walkaround of the Electronex 2025 exhibition in Melbourne
Forum: https://www.eevblog.com/forum/blog/eevblog-1686-electronex-2025-melbourne-walkaround/
51 min
May 13, 2025 EEVblog 1685 – Australian Manufacturing Week 2025: Walkaround
A walk around the Australian Manufacturing Week exhibition in Melbourne 2025, looking at mechanical stuff Dave has no idea about.
Forum: https://www.eevblog.com/forum/blog/eevblog-1685-australian-manufacturing-week-2025-walkaround/
54 min