Category Archives: Electronics

Extra Content #17: Video and Sound Test for New Maths Homework Videos | 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 I prepare my video cameras and recording studio so I can record the new Maths Homework section of the show!

This is just some second channel content for the archives. The video quality is quite poor in the beginning but we figure it out by the end! Stand by for the introductory video to the new section of the show which will be coming out on the main channel soon!

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!

RELIFE RL-007GA Solder LugsThis is an image of the product.notes

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Mail Call #13: Latest Loot from Amazon and AliExpress | 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 I open my mail. I got some stuff from Amazon and AliExpress:

The book that I mention I’m doing a new book teardown for is God Created the Integers, so keep your eye out for that coming up soon on the main channel.

The cable-making video I mention is this one: Electronics Project #5: Hook Clip Test Probes to DuPont Jumpers | In The Lab With Jay Jay.

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 Magnetic Ring Drill BitThis is an image of the product.

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Air Quality Meter

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Mum is roasting a chicken and my Air Quality Meter started alarming. The oven in the kitchen is smoking too much! This thing is super sensitive, it’s great, I’m glad I got it! The other day while I was soldering with the window closed it started alarming too. It’s good to have something reminding you about air quality.

Burglar Alarm | Project 11/20 | 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 I do the 11th project from the Maxitronix 20in1 (the Sensor Robot 20): Burglar Alarm.

This project uses the reed switch to trigger a bistable multivibrator that controls an alarm. The bistable multivibrator can be reset with the key. An astable multivibrator is used to generate the tone for the audible alarm.

In this project we get some more experience with transistors and how they can be used in various types of multivibrator circuit. Under the thermal camera we can see some of the transistors warming up as they conduct electricity. With the oscilloscope we can see the periodic waveform used to generate the alarm tone.

Note: while I was making this video I needed to make some banana plug to hook clip cables (so that I could test the reed switch). I made a video of my making those cables which you can see here: Electronics Project #9: Making Banana Plug to Hook Clip Cables | In The Lab With Jay Jay.



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 KT-908 Digital ThermometerThis is an image of the product.

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Electronics Project #9: Making Banana Plug to Hook Clip Cables | 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

Silly Job Title: Outlet Overlord

In this video I make a few cables. I connect test hook clips to banana plugs.

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 Dual-Purpose Sanding StickThis is an image of the product.notes

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Mail Call #12: Latest Loot from AliExpress | 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 I take a quick look at what has arrived lately from AliExpress:

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!

Maxitronix Electronic Metal Detector Kit Electronics ProjectThis is an image of the product.notes

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Most Important Skills for Electrical Engineering

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Today I watched Most Important Skills for Electrical Engineering.

Stuff I need to learn includes:

He listed some important soft skills which included:

  • Critical thinking
  • Problem solving
  • Communication
  • Opportunity detection
  • Tenacity/high-pain-tolerance

Quake ported to Arduino Nano Matter and Sparkfun Thing Plus Matter Boards

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Today I found Quake ported to Arduino Nano Matter and Sparkfun Thing Plus Matter Boards via this article from Hackaday: Quake In 276 KB Of RAM.

The code is on GitHub and there’s a YouTube video with a high-level explanation.

Demo #2: Resistor Box Banana Plug Modding and Demo | 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 I mod a pair of resistor boxes by installing banana plug terminals in place of the lug terminals they came with and then I give a quick demo of them.

In the demo we connect them in both series and parallel and then measure their resistance with my Fluke multimeter.

I mention this video from Dave Jones on the EEVblog: EEVblog #1020 – Is A $7 LCR / Component Tester Any Good? which is where I found out about the RS-201W resistor box which he has. I searched on eBay for RS-201W but what I found for over US$1,000 (inc shipping) was way too expensive: IET Labs RS-201W Wide Range Precision Resistance Substituter.

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 11 in 1 USB-C Hub USB HubThis is an image of the product.

Let’s go shopping!