Category Archives: Design

Darkness Alarm | Project 2/20 | 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 on this show’s homepage which is here.

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

In this video I do the second Maxitronix 20in1 Electronic Project Lab project: Darkness Alarm.



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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!

Scotch Titanium ScissorsThis is an image of the product.notes

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Brightness Alarm | Project 1/20 | 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 on this show’s homepage which is here.

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

In this video I do the first Maxitronix 20in1 Electronic Project Lab project: Brightness Alarm.

While conducting this experiment I made some notes over here: Maxitronix/20in1/1.



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!

gku AC1009 Underdesk Keyboard DrawerThis is an image of the product.notes

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Audio Frequency Oscillator | Project 9/10 | Maxitronix 10in1 | 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 on this show’s homepage which is here.

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

In this video I do the ninth Maxitronix 10in1 Electronic Project Lab project: Audio Frequency Oscillator.

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 52 in 1 Tiger WrenchThis is an image of the product.notes

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Patrol Car Siren | Project 8/10 | Maxitronix 10in1 | 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 on this show’s homepage which is here.

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

In this video I do the eighth Maxitronix 10in1 Electronic Project Lab project: Patrol Car Siren.

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!

JST XH2.54 Connector KitThis is an image of the product.

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New Book Teardown #1: The Art of Electronics 3rd Edition (2015) | 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 on this show’s homepage which is here.

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

Silly Job Title: Charge Charmer

This video is part of the New Book feature of my video blog.

In this video I review the venerable The Art of Electronics 3rd Edition by Paul Horowitz by Winfield Hill published in 2015. This monstrous tome includes some 1,220 pages.

This is a long video, because this is a long book!

While I was writing up these notes for the video I found a wealth of fun stuff. Here are a few links:

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!

Plato Model 170 Wire CutterThis is an image of the product.notes

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Dependency Injection in MediaWiki

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Today I read the documentation for how Dependency Injection is done in MediaWiki.

I had a few small nits to pick (such as their statement that services should be stateless) but… fair enough.

For myself I don’t usually use Dependency Injection and a Service Container, instead I prefer the Service Locator pattern which I find is simpler and more economical to use, especially in PHP where there is a single process per request.

Extreme late binding

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There’s a famous quote from Alan Kay that you will see bandied about:

OOP to me means only messaging, local retention and protection and hiding of state-process, and extreme late-binding of all things.

I think I agree with him, but I often find myself wondering quite what he meant by “extreme late-binding”. I suspect he means that object instances can redefine stuff they inherited from their concrete class. If your OOP platform doesn’t support that, you can emulate it with data and API.