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Can you measure capacitors in-circuit with an LCR meter? Forum: https://www.eevblog.com/forum/blog/eevblog-1473-how-your-lcr-meter-works/ Youtube: Odysee: Podcast: Download

How an LCR meter works. Forum: https://www.eevblog.com/forum/blog/eevblog-1473-how-your-lcr-meter-works/ Youtube: Odysee: Utreon: Podcast: Download

How to solve the resistor cube problem using equipotential nodes, short and open techniques, and circuit simplification. Twitter: https://twitter.com/engineers_feed/status/1519561534787051521 Forum: https://www.eevblog.com/forum/blog/eevblog-1472-resistor-cube-problem-solved/ 00:00 – The Resistor Cube problem 04:28 – The SECRET to circuit simplification using equipotential nodes 06:04 – Analysis “by inspection” 14:22 – Summary of the solution 16:14 – …

What’s in the Mailbag? SPOILER: 00:00 – Mailbag 00:41 – Laser etched Delorean Time Machine https://momentsetchedintime.com.au/ 03:29 – Encryption Class C wall mount rack cabinet 05:30 – Russian multimeter with a most UNUSUAL range switch! 08:44 – Smell’o’vision 11:51 – Bob Widlar PCB plaque 15:16 – How to get 5 …

Complex numbers are NOT complex! How complex numbers are used in AC circuit analysis. 00:00 – Complex Numbers 00:44 – Phasor graphical addition 01:22 – Why do calculators have the R-P and P-R buttons? 02:44 – Phasor diagram 03:59 – The AC voltage equation 04:47 – The complex plane and …

Part 2 of the AC Basics tutorial series. What are phasors and doing phasor addition. In-phase, out of phase, and leading and lagging waveforms. Phi vs Theta phase angle. Leading into complex numbers in Part 3. 00:00 – AC Basics Theory 00:40 – How an AC waveform is produced 01:37 …

A walk around the 2022 Electronex show in Sydney. 00:00 – Electronex 2022 01:13 – Phoenix Contact 01:38 – Tektronix 03:14 – Siglent 04:37 – John South at Emona + New Rigol StationMax Oscilloscope 07:38 – Harbuch Electronix isolation transformers 09:38 – Mantis remote 3D viewing microscope 12:05 – SMCBA …

Stanford University researchers have made a solar panel that works at nighttime! It will reduce or eliminate the need for battery storage! TAKE THAT Big Oil! You can probably guess how it works… Let’s BUST this impractical boondoggle wide open. The research paper: https://aip.scitation.org/doi/pdf/10.1063/5.0085205 Forum: https://www.eevblog.com/forum/blog/eevblog-1466-stanford-solar-power-at-nightime-busted/ 00:00 – Pulitzer prize …

It’s been a while since the dumpster has delivered a computer. Today we get a HP Proliant ML350p Gen8 xeon server. Does it work? Forum: https://www.eevblog.com/forum/blog/eevblog-1466-dumpster-dive-xeon-server/ Youtube: Odysee: Utreon: Podcast: Download

Modifying an old Maggy/Luxo magnifying lamp to get LED lighting and work from a Sony NP-FW50 battery.Video available on Odysee and Utreon

How you can use your multimeters capacitance range to measure inductors, using the reciprocal method. Forum: https://www.eevblog.com/forum/blog/eevblog-1465-measure-inductors-using-a-multimeter/ Podcast: Download

The TOP 5 Jellybean comparators, plus a bonus and special snowflake choice. 00:00 – Jellybean Comparators 01:20 – Traps for young players using Opamps as comparators 04:43 – Is the old School LM311 still THE jellybean? https://www.ti.com/lit/ds/symlink/lm311-n.pdf 11:17 – TS391 Small single comparator https://www.mouser.com/datasheet/2/389/cd00001660-1795546.pdf 16:33 – LM393/LM2903 Dual comparator https://www.ti.com/lit/ds/symlink/lm393a.pdf …

What’s in Dave’s Mailbag? Forum: https://www.eevblog.com/forum/blog/eevblog-1463-mailbag/ SPOILERS: 00:00 – Mailbag Bonanza! 03:24 – 3M IDC Crimping tool 04:57 – Bulova Accutron Watchmaster battery tester 06:52 – The best button EVER! 07:24 – Continentak Specialties Corporation breadboard 07:53 – Moving Iron AC ammeter 09:29 – Analog Devices power brick 09:57 – …

As if Dymo adding DRM to force you to use their labels wasn’t low enough, they have been BUSTED reusing their old 450/4XL Amazon listings in order to keep all their old positive reviews to make you think people are positively reviewing their new 550/5XL DRM model! This deception should …

Don’t buy the new Dymo 550 or 5XL label printers, they now use DRM NFC/RFID technology in the paper rolls to force you into using their labels at 10 TIMES the cost! EFF: https://www.eff.org/deeplinks/2022/02/worst-timeline-printer-company-putting-drm-paper-now NXP NFC chip: https://www.nxp.com/docs/en/data-sheet/SL2S2602.pdfSLRC610 RFID/NFC frontend: https://au.mouser.com/datasheet/2/302/SLRC610-1127743.pdf Forum: https://www.eevblog.com/forum/reviews/dymo-550-thermal-printer-drm-hacking/ Photos: Podcast: Download