Category Archives: In The Lab With Jay Jay

Mail Call #14: Loot from Amazon and AliExpress: Cables, Micros, and More! | 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 recent mail. Stuff that I ordered:

In the video I mention that I made some notes about how to pronounce famous mathematicians’ names, those notes are here: God Created the Integers.

In the video I mention the Arduino Leonardo and the Arduino Micro which I am using for my MIDI-synth project: Crustaceans Chirp Chirp Challenge. Both the Leonardo and the Micro are based on the ATmega32U4 microcontroller which has built-in USB support.

My audio cables are so that I can connect my new gaming rig ‘treat‘ to my Logitech Z607 5.1 Surround Sound Speaker System Bluetooth.

The NASA Astronomy Picture of the Day for 2024 November 15 is what I needed the 3D glasses for. Unfortunately they didn’t work particularly well for me. Oh well, can’t win ’em all.

Also, I figured out how to use my thermometer properly by reading the manual. Go figure. The thermometer supports two modes of operation, forehead and ear. So it works properly if you use it correctly.

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!

Sharp EL-546L Scientific CalculatorThis is an image of the product.notes

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Lava Lamp Display | Mini Project JMP002 | 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 Mini Project JMP002 developed and published by Silicon Chip magazine and sponsored by Jaycar Electronics.

The code for this project is here: XC3730_LAVA_LAMP_COLOURS.ino.

The parts for this project are these:

The links for this video are these:

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 Macro Programmable 8-Key Mechanical KeyboardThis is an image of the product.

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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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Burglar Alarm | Project 11/20 | Maxitronix 20in1 | Learning Electronics In The Lab With Jay Jay

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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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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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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.

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Mail Call #11: Costume Upgrade! And More Loot from AliExpress | 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 get the new shirt for my costume.

Also some USB stuff 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!

Swann & Morten 20pcs No.15C Scalpel BladeThis is an image of the product.

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