John's blog

Talking about technology (mostly)

New Book Teardown #5: Electrical Engineering 101 3rd Edition (2011) | In The Lab With Jay Jay

Posted on 2024-07-24 [Wednesday] by 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 look at Electrical Engineering 101: Everything You Should Have Learned in School…but Probably Didn’t 3rd Edition written by Darren Ashby and published in 2011.

In the book the author mentioned that they used to write for chipcenter.com which appears to have since been taken over by EE Times. ChatGPT provided more information.

The author also mentioned Mathcad. I’m planning to check that out over here: https://www.mathcad.com/

And some terms which came up (ChatGPT explains further):

Vcc: Voltage at the collector
Vee: Voltage at the emitter
Vdd: Voltage at the drain
Vss: Voltage at the source

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 100pcs Releasable Cable Organizer

This is an image of the product.

Let’s go shopping!

Extra Content #11: Cleaning Rust Off Handheld Wire Stripper Using Dremel Rotary Tool and WD-40

Posted on 2024-07-23 [Tuesday] by 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 clean the rust off my new Yum Cha Universal Handheld Wire Stripper using my Dremel 4300 Rotary Tool and WD-40 Specialist High Performance Silicone Lubricant.

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!

YIHUA 938D Soldering Tweezers

This is an image of the product.

Let’s go shopping!

Mail Call #3: Even More Cheap Stuff from China! Thanks AliExpress! | In The Lab With Jay Jay

Posted on 2024-07-23 [Tuesday] by 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 up another bag of stuff I ordered from AliExpress during their recent sale.

This is the bulk stuff I cover in this video:

And this is the equipment I cover in this video:

Yum Cha 3pcs Drill Scrub Brush

This is an image of the product.

Yum Cha 6pcs Wire Brush

This is an image of the product.

Yum Cha 10pcs Blue Microfiber Cloth

This is an image of the product.

Yum Cha 10pcs Magic Foam Sponge

This is an image of the product.

Yum Cha Universal Handheld Wire Stripper

This is an image of the product.

Yum Cha 4pcs 30mm Deep Hole Pen

This is an image of the product.

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!

Oloey Safety Goggles

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Let’s go shopping!

Extra Content #10: Cleaning, Testing, and Filing Through-Hole Resistors and Capacitors | In The Lab

Posted on 2024-07-22 [Monday] by 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 clean, test, and file a bunch of resistors and ceramic capacitors.

During this video I mention the Peak Atlas test instruments. I don’t own these yet, but they are on my wishlist!

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!

Dremel 335 Plunge Router

This is an image of the product.

Let’s go shopping!

Unboxing #12: Unboxing and Demo of OULLX NSS-681HDMI-RJ45 Cable Tester from AliExpress | In The Lab

Posted on 2024-07-22 [Monday] by 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 unbox the OULLX NSS-681HDMI-RJ45 Cable Tester from AliExpress and compare it with the Ampcom Automatic Network Cable Tester also from AliExpress.

OULLX NSS-681HDMI-RJ45 Cable Tester

This is an image of the product.

Ampcom Automatic Network Cable Tester

This is an image of the product.

Note that the Ampcom is advertised as the ANENG M469D on AliExpress, but that’s not actually what you get. The Ampcom model that you do get seems to work well enough, but I would recommend the OULLX NSS-681HDMI-RJ45 because it’s cheaper and can do HDMI in addition to Ethernet.

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 100pc Titanium Plated Drill Bits

This is an image of the product.

Let’s go shopping!

New spot for Dremel

Posted on 2024-07-22 [Monday] by Jay Jay

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My Dremel used to be installed under my bench (the bench I call the “booth”). But it was a hassle to get it out when I needed to use it. So I have relocated it to a spot next to my main bench (the bench I call the “bench”). So far so good. With the benefit of experience I should be able to figure out the best way to route the power cable.

p.s. I tried to find a new one of these Dremel wall mounts to purchase, but I couldn’t find one for sale anywhere… if you find one for sale somewhere, please do let me know!

My mat is screwed

Posted on 2024-07-22 [Monday] by Jay Jay

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I had a problem with my repair mat wherein it would slowly slide up the table. I had tried sticking it to the table with double sided tape, but the problem is the mat is very “non-stick”, nothing sticks to it. So I used two small screws to hold it to the table. Time will tell if the screws hold or not… (and yes, it *is* upside down… this is so that I can get my low component drawers out… :P)

Extra Content #9: Unboxing and Organising New Mini Screwdriver Kits from AliExpress | In The Lab

Posted on 2024-07-21 [Sunday] by 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 stock of my new screwdriver kits and organise and document them. Following are the three screwdriver kits I show in this video.

Yum Cha 29 In 1 Mini Precision Screwdriver Set

This is an image of the product.

Ausum 25 In 1 Precision Screwdriver Set

This is an image of the product.

Yum Cha Mini Magnetic Precision Screwdriver Set

This is an image of the product.

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!

Yutiars Flat Paint Brushes

This is an image of the product.

Let’s go shopping!

Mail Call #2: More Cheap Stuff from China! Thanks AliExpress! | In The Lab With Jay Jay

Posted on 2024-07-21 [Sunday] by 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 look at some tools and components that I purchased recently at an AliExpress sale.

This is the bulk stuff I cover in this video:

And this is the equipment I cover in this video:

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 Xbox To HDMI Adapter

This is an image of the product.

Let’s go shopping!

Extra Content #8: The Great Resistor Clean of 2024 | Learning Electronics In The Lab With Jay Jay

Posted on 2024-07-20 [Saturday] by 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 clean my 1% and 2% tolerance resistors (my 5% tolerance resistors were cleaned previously). That’s 37 component trays worth, being 37 different types from 1Ω to 1MΩ. During the video I print new labels for the component drawers with my label maker and I use my iPhone to double check the colour coding.

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!

Amazon Basics Ratchet Screwdriver

This is an image of the product.

Let’s go shopping!