Autopsy Of A Class H Audio Amplifier Hybrid Under The Microscope Mark Furneaux 2026-09-20 | Autopsy Of A Class H Audio Amplifier Hybrid Under The Microscope
Samsung TV Killed by Yellow Glue of Death Mark Furneaux 2022-11-14 | Quick fix thankfully.Video on UPSes with this glue: youtu.be/9gqBzLNMFe4I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
AMD RX 6650 XT on a 20 Year Old 850MHz Pentium 3 Mark Furneaux 2022-09-28 | Let's take the trend of "new GPU old CPU" a little further than usual by going beyond when PCIe was invented.Demo starts at 15:36.Sorry for the CRT flicker. I didn't notice the frame rate difference until I started editing.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Inside a Power Bar After a Surge, and How MOVs Work Mark Furneaux 2021-11-12 | Got this used power bar. Noticed a rattle. Looks like it's seen some lightning. This is why you check used things. Nothing that can't be fixed. Also a little explanation of how MOVs work in protection equipment and a little rant about how I think a lot of surge protector ratings are misleading at best.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Teardown of an Ingenico iWL250 Payment Terminal Mark Furneaux 2021-10-05 | A look into the physical security techniques used to protect the digital secrets in a relatively modern wireless credit card POS terminal.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Modding a New ATI Rage XL PCI GPU to Work on a Vintage Motherboard Mark Furneaux 2021-09-28 | Sneaky cost optimization causes these cards to not work on old hardware, so I show you a simple mod to allow them to work.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
How To Build A Slow Charge Cable To Extend Your Phones Battery Life Mark Furneaux 2021-09-16 | How to build yourself an adjustable slow charge cable to extend battery longevity in phones and USB charged devices. Skip to 9:25 if you already know about batteries.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
MicroFurnace, the $500 Space Heater from 1986 (Teardown) Mark Furneaux 2021-08-29 | Pelko made these first edition ceramic PTC heaters in Canada before moving production to Taiwan. This is an early 3-blade model with 4 round pucks.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Sintech Clone SD to IDE Adapters and Linux Fix Mark Furneaux 2021-08-26 | These Sintech cloned adapters (some branded Sintechi) stop working when partitioned with a Linux OS. I did some investigation and found a workaround.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Dont Buy an F-Tier Power Supply Mark Furneaux 2021-06-08 | There's your problem.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
CyberPower UPSes Contain Conductive Yellow Glue of Death (+ Bonus Rev. 2 Dim LCD Fix) Mark Furneaux 2021-05-29 | The CP1500PFCLCD and CP1350PFCLCD UPSes of at least rev 1 and rev 2 over the last 10 years contain yellow glue which becomes conductive and corrosive over time which can cause sometimes fiery failure. Also included is some ramblings of the notorious rev 2 LCD backlight failures and my attempt are rebuilding the backlight.Timestamps:0:00 Intro8:18 Taking the unit apart10:47 Glue locations14:09 Rev 2 differences19:05 LCD backlight fixI do have access to a rev 3 unit, but have not taken it apart yet. I will update this once I know if it is also affected.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
1991 Technics SA-GX303 Receiver Cooling Mod Mark Furneaux 2021-04-28 | These are notorious for melting down due to unfortunate design. After a repair, I wanted to update the design to never fail again. I'm sure I went overboard, but it's cool and quiet and I like both those things. I ended up using the 45-55C temperature range on the controller in the end after extended load testing.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
The Clapper Teardown: 1984 vs 2020 Designs Mark Furneaux 2021-03-28 | Love it or hate it, it'd been 35 years of manufacturing the same product. Let's reverse engineer them and see what's changed.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Acer Infrared Wireless Keyboard/Mouse from 1998 (Sealed in Box) Mark Furneaux 2021-03-26 | Found this at a thrift store and could not pass up the opportunity to be the one to open the shrink wrap after 23 years. Not entirely useless even today. Model WIL-172U.Who can spot the grammatical error on the box?I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
My New Supermicro File Servers Mark Furneaux 2021-03-22 | I bought a newer-generation Supermicro 847 system to replace my production storage server after moving the old one to backup duty after upgrading my storage pools.Replacement fan wall video: youtu.be/-8e9KT4CQs8I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
How To Silence a Supermicro 4U Server (or Really Any Server) Mark Furneaux 2021-03-22 | Detailed how-to on constructing a custom fanwall out of EVA foam for retrofitting larger, quieter fans with noise dampening. Can be applied to almost any server.Ramble on about the servers themselves: youtu.be/ELlm2-Tl6DQI have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Fixing Blown Tweeter in the Abstract Acoustics 101D/II Mark Furneaux 2021-03-19 | Going about how I found a nearly-identical replacement part for a 35 year old speaker system made by a small company which went out of business before the Internet.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
CyberPower UPS Battery Percentage is Fake When Charging Mark Furneaux 2021-03-12 | On discharge the percentage is derived from voltage curve. On charging... it's a timer!? At least on the CP1500PFCLCD it is.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Fixing the Flawed Speaker Protect Circuit in the Schiit Lyr 3 Amp/DAC Mark Furneaux 2021-02-06 | Does your Lyr 3 cut out when playing windy videos and certain songs? This fix is for you. Includes how to take it apart and circuit reverse engineering.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Teardown of the Hanmatek Electric Screwdriver Mark Furneaux 2021-01-11 | This is screwdriver #4 for me. Let's hope this one lasts longer than the others...The electric screwdriver this replaced:Teardown: youtu.be/YIvg4QkWasUThe electric screwdriver before that:Review: youtube.com/watch?v=zX2UW_B3uLETeardown: youtube.com/watch?v=KQ5gZhdMDuYI have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
A Great Electric Screwdriver but with Gears Made of Cheese: Post-Failure Teardown Mark Furneaux 2021-01-11 | If only the gearbox was larger this would be a perfect tool for me.The new replacement:Teardown: youtube.com/watch?v=DYw96HkiAmAThe electric screwdriver this replaced:Review: youtube.com/watch?v=zX2UW_B3uLETeardown: youtube.com/watch?v=KQ5gZhdMDuYI have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Fixing the Switches in my SteelSeries Sensei Pro Mouse Mark Furneaux 2020-09-03 | Let's retrofit new switches which should never wear out in my lifetime. Making new custom skates.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
NVIDIA Optimus and Linux - Are You Burning Power For No Reason? Mark Furneaux 2020-08-10 | This wasn't planned, so sorry for the lacklustre presentation.To clear up the technology naming, PRIME is a rendering offload technique, whereas Optimus is the dual GPU solution. So all systems using PRIME are Optimus configurations, but not the other way around.Setting up the xorg.conf automatically:us.download.nvidia.com/XFree86/Linux-x86_64/450.57/README/randr14.htmlThen add `Option "AllowNVIDIAGPUScreens"`.Running things with PRIME offloading:us.download.nvidia.com/XFree86/Linux-x86_64/450.57/README/primerenderoffload.htmlI have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Fixing A Dead Server Motherboard + Troubleshooting Tips Mark Furneaux 2020-06-24 | This ASUS P8B-X motherboard was discarded after it failed in service. Let's bring it back to life with ordinary tools. Step by step analysis of memory, voltage rails, oscillators, BIOS, etc.The other motherboard repair mentioned in the video:youtube.com/watch?v=8QrbHfTNoBMI have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
How to Fix Auto Stop on an Electric Can Opener (and How it Works) Mark Furneaux 2020-04-17 | Can you tell I'm bored?I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
How to Workaround Using a TV With Lines in The Image Mark Furneaux 2020-02-09 | With Linux and xrandr you can make a TV or monitor with a dead section usable again.I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
How to Quickly Test UPS Batteries Without the UPS Itself Mark Furneaux 2020-01-25 | The method start at 4:37 (apparently I'm a fly who can't remember to put timecodes in the video).Some car battery testers can be used with UPS batteries to quickly and easily tell how much life remains using internal resistance measurements.Long time no videos. Also, did I just subconsciously steal Ben Krasnow's outro?I have a second channel: youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Inside a Popular Amazon USB Cable Mark Furneaux 2019-01-20 | These are sold under several brands. One recently met it's demise, so why not look inside.I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
1953 IBM Model A Electric Typewriter Repair Part 2 Mark Furneaux 2018-06-03 | It works now.Reassembled at 21:44.I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
1953 IBM Model A Electric Typewriter Repair Part 1 Mark Furneaux 2018-05-21 | In this video I go over the device and theory of operation, and fix the power switch, key lockout mechanism, and single character carriage advance/backspace.Timestamps:3:52 - recap of unfilmed work6:18 - removing cover11:44 - underside12:33 - key lockout mechanism problem intro15:58 - theory of power transfer21:25 - shift lock22:47 - tab feature25:27 - spacebar problem intro28:17 - carriage return problem intro29:28 - carriage tour33:08 - disassembling power switch35:29 - cleaning power switch37:42 - fixing key lockout mechanism38:12 - fixing spacebar problem43:15 - first power up after fixing spacebar and demo47:28 - reinstalling power switch and second power upI have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Repair of a Paradigm UltraCube 10 Subwoofer Mark Furneaux 2018-01-04 | I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Induction Cookware Compatibility is More Intricate Than it Seems Mark Furneaux 2017-12-20 | More power does not always actually give you more power, and it's not consistent across different cooktops.I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
A Look at the Circuitry in a Dyson DC23 Powerhead Mark Furneaux 2017-12-17 | I took it apart to clean it, so here is what I found.I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Supercapacitor Conversion of a Tripp-Lite UPS Mark Furneaux 2017-12-03 | I modified this old UPS to run on a supercapacitor bank. The runtime is still quite usable on the low cost capacitors.Detailed work begins at 11:40.I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
WiFi Plant Monitor Project Intro Mark Furneaux 2017-11-22 | This board is sold under several names. I'm writing some firmware and a web service for collecting plant data.I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Review of a Generic USB RS 232/485/TTL Adapter (Winners branded) Mark Furneaux 2017-10-08 | These are all over eBay, and not much information is published. I thought I'd shed some light on the RS485 implementation.I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Teardown and Review of the VC60B+ Insulation Tester/Megohmmeter Mark Furneaux 2017-09-28 | I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Inside a 20Gbps Optical Infiniband Transceiver Mark Furneaux 2017-09-12 | This one is broken. Maybe I'll put this under a microscope since the diodes look coolI have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
I Now Have Twitter and Patreon Mark Furneaux 2017-08-22 | You kept asking, so here you go.patreon.com/theubuntuguytwitter.com/theubuntuguyI have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
The Magic Sys Req Key Mark Furneaux 2017-08-21 | How to recover any locked up Linux system safely.I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
How I Backup My Data Mark Furneaux 2017-08-19 | And some general updates too.ZFS Backup Manager: github.com/TheUbuntuGuy/zfs-backup-managerOffline Backup Helper: github.com/TheUbuntuGuy/offline-zfs-backupI have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Reviewdown of the Cheap HP S700 SSD Mark Furneaux 2017-08-13 | It's 3D TLC, but also only $60. How bad can it be?I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Inside The Ninja QB900BC Blender Mark Furneaux 2017-08-07 | A decent blender for the price. Not much unexpected, although I like the interlock system.I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Swapping Hard Drive Calibration Chips To Fix Bad Drive Mark Furneaux 2017-07-28 | When the molex to SATA adapter caught fire on this board, certain features stopped working. Let's fix that without spending $200.I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Overview of My New Supermicro File Server Mark Furneaux 2017-07-27 | I recently picked up a used Supermicro file server. This is the first of a few videos regarding the topic.I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Teardown of the Naztec PS2D Traffic Light Controller PSU Mark Furneaux 2017-07-22 | I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Repair of a Midway Touchmaster 7000 Bar Arcade Machine Mark Furneaux 2017-07-16 | The transformer got a little crispy.I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Comprehensive Guide to pfSense 2.3 Part 9: Traffic Shaper Mark Furneaux 2017-07-03 | A detailed look at the ATLQ traffic shaper types in pfSense.Jump ahead at your own risk:Limiters: 8:20CODEL: 14:06FAIRQ: 17:50PRIQ: 20:36CBQ: 23:58Service Curves: 27:31HFSC: 38:29Part 1: youtube.com/watch?v=agieD5uiwYYPart 2: youtube.com/watch?v=0spAIaWb7x0Part 3: youtube.com/watch?v=7nr9HNZ7OmYPart 4: youtube.com/watch?v=mgEMGoFIotsPart 5.1: youtube.com/watch?v=rgupXMlz3isPart 5.2: youtube.com/watch?v=bJ3AXlnhTSMPart 5.2-2: youtube.com/watch?v=a-NdPyCHaPIPart 5.3: youtube.com/watch?v=ud9TgWSolNwPart 5.4: youtube.com/watch?v=h8A5tcUIOcwPart 6: youtube.com/watch?v=QC_nXreJCvcPart 7: youtube.com/watch?v=s3VXLIXGazMPart 8: youtube.com/watch?v=UZR2LNBtzrwI have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
Comprehensive Guide to pfSense 2.3 Part 8: Firewall and NAT Rules Mark Furneaux 2017-05-15 | Overview of the firewall and NAT rules in pfSense.Part 1: youtube.com/watch?v=agieD5uiwYYPart 2: youtube.com/watch?v=0spAIaWb7x0Part 3: youtube.com/watch?v=7nr9HNZ7OmYPart 4: youtube.com/watch?v=mgEMGoFIotsPart 5.1: youtube.com/watch?v=rgupXMlz3isPart 5.2: youtube.com/watch?v=bJ3AXlnhTSMPart 5.2-2: youtube.com/watch?v=a-NdPyCHaPIPart 5.3: youtube.com/watch?v=ud9TgWSolNwPart 5.4: youtube.com/watch?v=h8A5tcUIOcwPart 6: youtube.com/watch?v=QC_nXreJCvcPart 7: youtube.com/watch?v=s3VXLIXGazMPart 9: youtube.com/watch?v=rF46PNid1MoI have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
The Cheapest IDE to SATA Adapter Mark Furneaux 2017-05-04 | It actually works, albeit with a bit of fussing.You can find these on eBay by just searching "IDE SATA".I have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
New pfSense Router and Rambling Mark Furneaux 2017-05-03 | Netgate post:netgate.com/blog/pfsense-2-5-and-aes-ni.htmlI have a second channel:youtube.com/channel/UCN3Dgu6CVBcecDkc5DmIIqw
