Early Content #11: Demo of the ALKOY Capacitor Discharge Pen | In The Lab With Jay Jay

This post is part of my video blog and you can find more information about this video on this show’s homepage which is here.

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In this video I demo my new ALKOY Capacitor Discharge Pen.

The bench multimeter I use in this video is my OWON XDM1041 and the bench power supply is my RIDEN RD6006.

The demo circuit used a 1KΩ 1/4W resistor, a 25V 330μF electrolytic capacitor, and an 18V supply.

Thanks very much for watching! And please remember to hit like and subscribe!


Following is a list of products I use which may appear in my videos. Clicking through on these links before purchasing from Amazon, eBay, or AliExpress is a great way to support the channel at no cost to you. Thanks!

Rigol MSO5074 Mixed Signal OscilloscopeThis is an image of the product.notes
Rigol PLA2216 Logic ProbeThis is an image of the product.notes
ATEN CS1922 2-Port DisplayPort KVMThis is an image of the product.notes
UNI-T UTi260B Thermal ImagerThis is an image of the product.notes
TOMLOV DM602 Pro Digital MicroscopeThis is an image of the product.notes
UNI-T UTG962E Signal GeneratorThis is an image of the product.notes
Leadstar 12″ LCD TVThis is an image of the product.notes
Riden RD6006 Bench Power SupplyThis is an image of the product.notes
Tenma 72-10505 Bench Power SupplyThis is an image of the product.notes
UPERFECT 15.6″ HDMI LCDThis is an image of the product.notes
Pro’sKit SS-331H Desoldering PumpThis is an image of the product.notes
NOYAFA NF-521 Thermal ImagerThis is an image of the product.notes
Dremel 4300 Rotary ToolThis is an image of the product.notes
Epson Perfection V39 Flatbed ScannerThis is an image of the product.notes
Maxitronix 300 In 1 (300in1) Electronics Project Lab KitThis is an image of the product.notes
OWON XDM1041 Bench MultimeterThis is an image of the product.notes
Maxitronix 500 In 1 (500in1) Electronics Project Lab KitThis is an image of the product.notes
Maxitronix 200 In 1 (200in1) Electronics Project Lab KitThis is an image of the product.notes
FILCO Majestouch 2SS 104-key Mechanical KeyboardThis is an image of the product.notes
ANENG AN-999S Bench MultimeterThis is an image of the product.notes
FILCO Majestouch 2SS 87-key Mechanical KeyboardThis is an image of the product.notes
Bosch IXO VI Electric ScrewdriverThis is an image of the product.notes
Victorinox Swiss Champ Red Swiss Army KnifeThis is an image of the product.notes
Kingst LA1010 USB Logic AnalyzerThis is an image of the product.notes
Dremel 2500 Multi-ViseThis is an image of the product.notes
YIHUA 938D Soldering TweezersThis is an image of the product.notes
Dremel 335 Plunge RouterThis is an image of the product.notes
ZKETECH EBD-A20H Electronic LoadThis is an image of the product.notes
Yizhan MicroscopeThis is an image of the product.notes
Miniware DT71 Digital TweezersThis is an image of the product.notes
Maxitronix 130 In 1 (130in1) Electronics Project Lab KitThis is an image of the product.notes
Dremel 220 Drill PressThis is an image of the product.notes
Rigol PLA2216 Compatible Logic ProbeThis is an image of the product.notes
Dremel EZ725 Rotary Tool Accessory SetThis is an image of the product.notes
Maxitronix 60 In 1 (60in1) Electronics Project Lab KitThis is an image of the product.notes
Brother P-Touch D210 Label MakerThis is an image of the product.notes
Brother P-touch H105 Label MakerThis is an image of the product.notes
ENGINEER PA-21 Crimping ToolThis is an image of the product.notes
Fluke 1AC-C2-II VoltAlert Voltage DetectorThis is an image of the product.notes
ENGINEER PA-09 Crimping ToolThis is an image of the product.notes
MESR-100 ESR MeterThis is an image of the product.notes
Horusdy Soldering StationThis is an image of the product.notes
Tera HW0006 Pro Barcode ScannerThis is an image of the product.notes
Hakko CHP 3C-SA Precision TweezersThis is an image of the product.notes
FNIRSI DSO-TC3 3 in 1 Oscilloscope, Signal Generator, Component TesterThis is an image of the product.notes
Ryobi RYSF5003 Stud FinderThis is an image of the product.notes
M6013 Capactance MeterThis is an image of the product.notes
UNI-T UT116A Digital TweezersThis is an image of the product.notes
Maxitronix Electronic Digital Recording Laboratory (59in1) Electronics Project Lab KitThis is an image of the product.notes
Jackcat Electric ScissorsThis is an image of the product.notes
DigiTech QM1323 MultimeterThis is an image of the product.notes
MMOBIEL Helping HandsThis is an image of the product.notes
ZZWS Book HolderThis is an image of the product.notes
TOWOT Industrial TweezersThis is an image of the product.notes
Maxitronix 30 In 1 (30in1) Electronics Project Lab KitThis is an image of the product.notes
Amazon Basics Ratchet ScrewdriverThis is an image of the product.notes
Maxitronix Sensor Robot 20 (20in1) Electronics Project Lab KitThis is an image of the product.notes
Kaisi 35x25cm Repair MatThis is an image of the product.notes
gku AC1009 Underdesk Keyboard DrawerThis is an image of the product.notes
QWORK Helping HandsThis is an image of the product.notes
Kaisi 45x30cm Repair MatThis is an image of the product.notes
Duratech TH-1980 PCB ClampThis is an image of the product.notes
FNIRSI SG-002 Signal GeneratorThis is an image of the product.notes
SHDSL Tape DispenserThis is an image of the product.notes
Maxitronix 10 In 1 (10in1) Electronics Project Lab KitThis is an image of the product.notes
Sudake SDK08 Test ClipsThis is an image of the product.notes
Capactior Discharge PenThis is an image of the product.notes
Portwest Standard Lab CoatThis is an image of the product.notes
Arlec PB91 Plug-In RCD Safety Switch with Surge ProtectorThis is an image of the product.notes
AMTECH NC-559-ASM FluxThis is an image of the product.notes
Klein Tools 32614 4-in-1 Multi-bit Precision Pocket ScrewdriverThis is an image of the product.notes
oz_gear CalipersThis is an image of the product.notes
Bysameyee Head-Mounted MagnifierThis is an image of the product.notes
Sharp EL-546L Scientific CalculatorThis is an image of the product.notes
Legion Tools Mini Screwdriver SetThis is an image of the product.notes
Scotch Titanium ScissorsThis is an image of the product.notes
Maxitronix Crystal Radio Kit Electronics ProjectThis is an image of the product.notes
Maxitronix AM/FM Radio Kit Electronics ProjectThis is an image of the product.notes
RELIFE RL-007GA Solder LugsThis is an image of the product.notes
Super Bright 90000LM LED TorchThis is an image of the product.notes
Bosch IXO Angle Screw AdapterThis is an image of the product.notes
Maxitronix Electronic Metal Detector Kit Electronics ProjectThis is an image of the product.notes
YOUOWO ID Badge HolderThis is an image of the product.notes
Diodrio Leather Pocket ProtectorThis is an image of the product.notes
OZSTOCK Large Folding Step LadderThis is an image of the product.notes
Fuumuui Paint BrushesThis is an image of the product.notes
Craft Knife SetThis is an image of the product.notes
Dremel Cutting Discs for Rotary ToolThis is an image of the product.notes
Gasmate ButaneThis is an image of the product.notes
Dremel 490 Rotary Tool Dust BlowerThis is an image of the product.notes
nmsafety GlovesThis is an image of the product.notes
OZSTOCK Small Folding Step LadderThis is an image of the product.notes
HiLetGo USB Logic AnalyzerThis is an image of the product.notes
Kaisi Soldering Tools w/ Desoldering PumpThis is an image of the product.notes
Magnetic/Claw Pickup ToolThis is an image of the product.notes
395nm UV LampThis is an image of the product.notes
Sudake SDK07 Test ClipsThis is an image of the product.notes
MECHANIC UV Curing LightThis is an image of the product.notes
Comidox ATX Power Supply TesterThis is an image of the product.notes
SpudgersThis is an image of the product.notes
Kaqiwze Blow TorchThis is an image of the product.notes
Telescopic Magnetic Pickup ToolThis is an image of the product.notes
Third HandThis is an image of the product.notes
Tungfull TH-161 Rotary Tool BitsThis is an image of the product.notes
Adafruit One PCB to Ruler Them All RulerThis is an image of the product.notes
JST XH2.54 Pre-crimped Connector KitThis is an image of the product.notes
Plato Model 170 Wire CuttersThis is an image of the product.notes
Yum Cha Universal Handheld Wire StripperThis is an image of the product.notes
365nm UV LampThis is an image of the product.notes
Drill ExtensionThis is an image of the product.notes
300pcs Heat Shrink Wire ConnectorsThis is an image of the product.notes
IC Chip Pickup ToolThis is an image of the product.notes
Metal SpudgersThis is an image of the product.notes
Telescopic Magnetic Pickup w/ LightThis is an image of the product.notes
Spudger SetThis is an image of the product.notes
Yum Cha 3pcs Drill Scrub BrushThis is an image of the product.notes
CrowbarThis is an image of the product.notes
Ampcom Automatic Network Cable TesterThis is an image of the product.notes
Stainless Steel TrayThis is an image of the product.notes
Multifunction HooksThis is an image of the product.notes
Heat Shrink Wire ConnectorsThis is an image of the product.notes
Yum Cha 10pcs Blue Microfiber ClothThis is an image of the product.notes
JST XH2.54 6pin Pre-crimped ConnectorThis is an image of the product.notes
OULLX NSS-681HDMI-RJ45 Cable TesterThis is an image of the product.notes
Telescopic MagnetThis is an image of the product.notes
Knife BladesThis is an image of the product.notes
SUNSHINE Hard Brush SetThis is an image of the product.notes
Yum Cha Probe TweezersThis is an image of the product.notes
Yutiars Flat Paint Brush SetThis is an image of the product.notes
TOOKKS HZY ABS Wire FixtureThis is an image of the product.notes
Yum Cha 29 In 1 Mini Precision Screwdriver SetThis is an image of the product.notes
Yum Cha 2pcs Grease Cleaner Cleaning BricksThis is an image of the product.notes
Yum Cha 100pc Titanium Plated Drill BitsThis is an image of the product.notes
100pcs Heat Shrink Wire ConnectorsThis is an image of the product.notes
DT830B Digital MultimeterThis is an image of the product.notes
Yum Cha 2pcs Magnetic Soft Vise Jaw PadsThis is an image of the product.notes
Digital MeterThis is an image of the product.notes
Yum Cha 6pcs Wire BrushThis is an image of the product.notes
Yutiars Round Paint Brush SetThis is an image of the product.notes
Damotk 5pcs Crevice Cleaning BrushThis is an image of the product.notes
Yum Cha 10pcs Magic Foam SpongeThis is an image of the product.notes
Yum Cha Depth GaugeThis is an image of the product.notes
Yum Cha 100pcs Releasable Cable OrganizerThis is an image of the product.notes
Yum Cha Mini Magnetic Precision Screwdriver SetThis is an image of the product.notes
Ausum 25 In 1 Precision Screwdriver SetThis is an image of the product.notes
Sandleford 4 Piece Funnel SetThis is an image of the product.notes
Yum Cha 4pcs 30mm Deep Hole PenThis is an image of the product.notes
JST XH2.54 Connector KitThis is an image of the product.notes
Yum Cha Long Handle Wire BrushThis is an image of the product.notes
MOKIN CMO-346 3 inch Magnetic TrayThis is an image of the product.notes
Yum Cha Heavy Duty Stainless Steel Wire BrushThis is an image of the product.notes
Oloey Safety GogglesThis is an image of the product.notes
Aokin Wire CutterThis is an image of the product.notes
Yum Cha Metallic Craftwork PenThis is an image of the product.notes
EXAR Signal GeneratorThis is an image of the product.notes
Yum Cha Double-ended Cotton SwabsThis is an image of the product.notes
Asometech Universal Stylus PenThis is an image of the product.notes
aToolTour Black Hexagon Deburring Drill BitThis is an image of the product.notes
Wozniak Solder LugsThis is an image of the product.notes

Let’s go shopping!

FILCO Majestouch 2SS Edition Keyboards

I ordered two new keyboards this morning. I got a 104-key one and an 87-key one. The gory details are documented on the keyboard page on my wiki.

Usually I like to buy V3 keyboards from WASD Keyboards in America. But the price for the two keyboards delivered would have been AU$841, which was just a bit too expensive for me.

So I had a bit of a hunt around and I found these Japanese FILCO Majestouch 2SS Edition keyboards on Amazon:

They both come with MX Speed Silver switches which are the ones I like.

While I was researching I found the following content mill articles which I enjoyed reading to learn more about mechanical keyboards:

Homework

This is a part of the homework feature of my blog, which is an ongoing conversation with my mate S.F.

I said I found a microscope cheaper on AliExpress than on Amazon, but actually I was wrong about that. In fact I found it cheaper on eBay ($333.29) than Amazon ($733.42). Nevertheless, my point stands. It pays to shop around!

I mentioned my video jj5 feels hardcore!. Let me know if that doesn’t play for you, I think I have the original kicking around somewhere… If this video doesn’t make you happy, nothing will… :)

You told me about Louis Theroux’s Weird Weekends.

The I-can’t-believe-it’s-not-satire lawyer/jailer thing I mentioned is documented here: Um, America?

The academic accident I referred to was in The Hardware Lottery by Sara Hooker published in August 2020. In the essay the author says “risk adverse”. Of course the idiomatic expression she is aiming at is “risk averse” and she just got it horribly wrong. Not once, but twice. As I said, for a professional academic ignorance at this scale is… unbecoming.

My comment about academic whinging was: “There’s nothing more sleep inducing than a pompous academic having a whinge.” (If I could refer you to section three of the policy document, subsection five, article three A, there is a discrepancy regarding some thing I do not give a shit about…)

I mentioned How It Works (girls suck at math!)

The full quote is: “‘Why?’ is a stupid boring question to which all honest answers are a deception of the mind.” — John Elliot V

I mentioned Creative Act: A Way of Being by Rick Rubin. I will bring you your copy next time I see you. :) In the mean time you might enjoy: Rick Rubin: Legendary Music Producer | Lex Fridman Podcast #275.

Don’t forget to send me the name of the Sony headphones you recommend.

The LCD Soundsystem you mentioned was You Wanted A Hit. Classic.

Let’s not forget: It doesn’t have to be a bad thing!

Also, let’s not forget: everything you do is indelibly wrought in space and time. (No pressure.)

Also: hope is not a strategy. (Although some do not agree)

What is the difference between hope and faith?

Hope:

  • To wish for a particular event that one considers possible.
  • To have confidence; trust.
  • To desire and consider possible: synonym: expect.

Faith:

  • The assent of the mind to the truth of a proposition or statement for which there is not complete evidence; belief in general.
  • Specifically Firm belief based upon confidence in the authority and veracity of another, rather than upon one’s own knowledge, reason, or judgment; earnest and trustful confidence: as, to have faith in the testimony of a witness; to have faith in a friend.
  • In a more restricted sense: In theology, spiritual perception of the invisible objects of religious veneration; a belief founded on such spiritual perception.

Serendipity and The Three Princes of Serendip.

I have a note about “deesterous”, but I have no idea what that means. What were we talking about? I think I wrote it down phonentically, but the search engine is telling me “dexterous”, but that is not it.

Also we were talking about “flapping around in affluence”. What was that all about? Lost to time?

We discussed the Spectacle. More reading may be required, particularly of Jean Baudrillard.

The string theory guy is Michio Kaku. I’m worried he might be a crank. Or maybe he is brilliant. Who could say. I watched a video of him recently: Michio Kaku | Quantum Supremacy | Talks at Google.

AI and the paperclip problem is described here. The problem is if you design an AI to make paperclips it might destroy civilization. Because, to begin with, it might sense that humans might try to turn it off, which would impede its ability to create paperclips, so it wipes out humanity and uses the atoms of our bodies to make paperclips… I mean, it is *very good* at making paperclips.

We mentioned Experimental Jet Set, Trash and No Star. Classic. On the web here.

The Chillout Sessions began back in 2001. They don’t make ’em like they used to.

The concept of enshittification is explained by Cory Doctorow in Tiktok’s enshittification.

I mentioned about Musk feigning thought in an interview I watched recently. Check this out. He totally pretends to think deeply about the question! It’s awful to watch, like bad acting!

I mentioned the video game Descent. I remember playing it back in the nineties, it was so cool! I think there is Descent, Descent II, and Decent 3. Apparently I can get them all on Steam. Gonna try that. Want to get myself a good joystick to go with them, maybe this Logitech G 4021846 H.O.T.A.S. RGB Throttle and Stick Controller X56.

You asked what brings me joy, it is this:

Love you brother. Can’t wait to see you again soon. <3

Amazon Web Services (AWS) — Elastic Compute Cloud (EC2)

Learning how to program the EC2 system via the PHP API. I needed to know about RunInstances and AssociateAddress.

You can send Amazon a Request to Remove Email Sending Limitations which by default limit the amount of email traffic instances can process.

Also read about Amazon EC2 Instance IP Addressing and Elastic IP Addresses (EIP).

Although I settled on using the PHP SDK I read the doco for the Java SDK EC2 client: Class AmazonEC2Client. The corresponding PHP API is here. Also How to get list of EC2 instances with Amazon PHP SDK 2 from StackOverflow was useful. All AWS SDKs are here and there are command-line tools. There is AWS SDK for PHP Documentation. This article Provision an Amazon EC2 Instance with PHP was a handy starting place. I also saw the Amazon Elastic Compute Cloud API Reference. I also read AWS SDK for PHP: Run an Amazon EC2 Instance.

I started a project at ProgClub called make-love, which is my server re-instantiation script. It shows how to use the AWS PHP SDK and the r53.php code for programming AWS Route53 DNS services. Documentation on the Route53 client can be found at Ordering Disorder. More on r53.php at SourceForge. I added a new function listAllResourceRecordSets to the Route32 class and commented out some SSL validation code because validation was failing and it’s no big deal to ignore it.