Category Archives: Notes

Mail Call #19: Tool Holder, MOSFET, LM311, Capacitor, Pliers, USB Adapter and More! | In The Lab

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This post is part of my video blog and you can find more information about this video over here.

You can support this channel on Patreon: patreon.com/JohnElliotV

In this video we see what has arrived in the mail from AliExpress.

We use the Peak Electronic Design Atlas DCA75 Pro Semiconductor Analyzer to test our MOSFETs as they arrive.

We use the Brother P-Touch D210 Label Maker to label our component drawers.

We use the Scotch Titanium Scissors to cut open our packaging.

We use the Hakko CHP 3C-SA Precision Tweezers to manipulate our components.

Stuff that arrived included:

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

Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!

Yum Cha Universal Handheld Wire StripperThis is an image of the product.notes

Let’s go shopping!

Rain Detector | Project 18/20 | Maxitronix 20in1 | Learning Electronics In The Lab With Jay Jay

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This post is part of my video blog and you can find more information about this video over here.

You can support this channel on Patreon: patreon.com/JohnElliotV

In this video we do the 18th project from the Maxitronix Sensor Robot 20 (20in1) Electronics Project Lab Kit: Rain Detector.

We use the Rigol MSO5074 Mixed Signal Oscilloscope to see the 1.6 kHz square wave from our astable multivibrator.

We use the UNI-T UTi260B Thermal Imager to watch the thermal effects of the circuit. We see both the 1K resistors in the astable multivibrator get warm, but only the activated side of the bistable multivibrator gets warm.

We use the Fluke 17B+ Digital Multimeter to buzz out the circuit looking for mistakes.

We use the Riden RD6006 Bench Power Supply to provide 9V for our circuit. I make a mistake and connect it the wrong way around to begin with!

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




Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!

TOOKKS HZY ABS Wire FixtureThis is an image of the product.notes

Let’s go shopping!

JTAG ‘Hacking’ the Original Xbox in 2023

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This turned up on hacker news today: JTAG ‘Hacking’ the Original Xbox in 2023 – Using Intel CPU JTAG to dump the secret bootrom in Microsoft’s original Xbox. There’s some info being collected on github: github.com/Necrosys/x86-JTAG-Information.

Learning the Art of Electronics: A Hands-On Lab Course 2ed

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I have been sad for some time that Learning the Art of Electronics: A Hands-On Lab Course is out of print. Little did I know, they have been working on a second edition! The revised edition is due out in March 2025. Excellent news! I don’t usually pre-order books, but I will pre-order my copy of Learning the Art of Electronics: A Hands-On Lab Course 2ed. There’s more info on the book’s website: learningtheartofelectronics.com.

Mail Call #18: Tape, Cable, PCBs, Thermometer, Diodes, Soldering, Magnets, Blades and More!

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This post is part of my video blog and you can find more information about this video over here.

You can support this channel on Patreon: patreon.com/JohnElliotV

Silly Job Title: …

In this video we take a look at what has arrived in the mail from AliExpress.

We use the Brother P-Touch D210 Label Maker to label some of our components.

This is what we got:

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

Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!

Yum Cha Mini Magnetic Precision Screwdriver SetThis is an image of the product.notes

Let’s go shopping!

Homework

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

Hey mate. Lovely to see you again, as always.

You told me about Gorilla Glue. Rather unhelpfully there are all different types.

I mentioned my manifesto. Everyone should have one. :)

The Everyday Spy is Andrew Bustamante.

A PhD involves a thesis defense.

I have a note here “star app”, but I’m not sure what it refers to? Do you remember? I did search for “star app“.

This is required viewing: Bogans.

See you again soon! <3

Demo #7: Octopus Third Hand | Learning Electronics In The Lab With Jay Jay

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This post is part of my video blog and you can find more information about this video over here.

You can support this channel on Patreon: patreon.com/JohnElliotV

In this video we demo our third hands from AliExpress: Octopus Soldering Helping Hands Bench Vise Table Clamp with Flexible Arms Solder Iron Holder PCB Repair for TS101 TS100 PINE64.

I mention that I found a YouTube video which has a look at it: Octopus Hand supports Soldering for only 5$ – Turtle Review but like me they couldn’t figure out what the rubber and bolts on the base are for! If you know please let me know in the comments!

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

Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!

Yum Cha Drill ExtensionThis is an image of the product.

Let’s go shopping!

Low-Water Indicator | Project 17/20 | Maxitronix 20in1 | In The Lab With Jay Jay

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This post is part of my video blog and you can find more information about this video over here.

You can support this channel on Patreon: patreon.com/JohnElliotV

In this video we do the 17th project from the Maxitronix Sensor Robot 20 (20in1) Electronics Project Lab Kit: Low-Water Indicator.

We use the Rigol MSO5074 Mixed Signal Oscilloscope to see the output of the astable multivibrator. In the video I make a mistake and attach the probe to the wrong pins.

We use the METCAL PS-900 Soldering Station to solder the wires I use for the banana plugs I attach to the touch sensor an voice sensor (microphone).

We use the UNI-T UTi260B Thermal Imager to look at the heat profile of the circuit. We see that the low resistances (470Ω and 1KΩ) get the warmest, but the higher resistances (e.g. 10KΩ) are also slightly visible.

We use the Fluke 17B+ Digital Multimeter to check the resistance of the touch sensor.

We use the Peak Electronic Design Atlas LCR45 LCR Meter to measure the resistance of the resistor we use in the LED attachment circuit. This extra circuit allows us to switch out the buzzer for an LED, which makes a lot less racket. The resistor it uses turned out to be 470Ω.

We use the Riden RD6006 Bench Power Supply to provide 9V for our test circuit. Usually I take a current reading to see how much power the circuit draws in its various states, but I forgot!

We use the Horusdy Soldering Station with Hot Air Gun for its hot air gun in order to shrink the heat shrink which we added to the banana plug cables we attached to our sensors.

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




Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!

Yum Cha 9-Inch Needle Nose PliersThis is an image of the product.notes

Let’s go shopping!