Category Archives: Notes

Morse Code By Light | Project 1/10 | 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 first the Maxitronix 10in1 Electronic Project Lab project: Morse Code By Light.

Stay tuned for the upcoming projects. If you’re interested in seeing them don’t forget to subscribe!

Also, if you’re interested in getting any of these Maxitronix kits yourself the best place I know to look is on eBay. Let me know if you find them somewhere else!

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 Magnetic Claw Pickup ToolThis is an image of the product.notes

Let’s go shopping!

Introducing Maxitronix 10in1 | 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 introduce the Maxitronix 10in1 Electronic Project Lab. This kit has 10 projects which we will be working through in future videos.

I did check out the URL listed on the manual: www.maxitronix.com — but there’s nothing there any more, it is simply listed as for sale. I tried looking in archive.org but I only found some default content from the hosting provider.

Stay tuned for the upcoming projects. If you’re interested in seeing them don’t forget to subscribe!

Also, if you’re interested in getting any of these Maxitronix kits yourself the best place I know to look is on eBay. Let me know if you find them somewhere else!

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!

ZKETECH EBD-A20H Electronic LoadThis is an image of the product.notes

Let’s go shopping!

6 Horribly Common PCB Design Mistakes and AppCAD

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Today I enjoyed watching 6 Horribly Common PCB Design Mistakes and the follow-up video Design Mistakes You Must Avoid on Your New Electronic Product.

In the first video I learned about AppCAD Design Assistant which is a free tool which boasts a broad bunch of features (and, particularly, it can help you design an antenna on your PCB):

  • S-Parameter Analysis and Plotting
  • Active Circuit Bias Design
  • Cascade Noise and IP3 Analysis
  • Transmission Line Analysis
  • Signals and Systems
  • Complex Math Engineering Calculator

I haven’t used AppCAD yet, but I will check it out soon.

Learning Kdenlive: Audio Normalization

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I’m slowly learning how to use my video production tools.

Yesterday I discovered the 2 pass audio normalization feature in kdenlive.

You seem to need to apply this effect to each clip separately.

This 2 pass effect is much easier to configure than the other normalization option, which requires more configuration settings.

With the 2 pass audio normalization you just nominate your desired volume, click Analyze, and you’re done. You need to do that for each clip.

Now that I know how to do this the audio on my videos shouldn’t be as terrible as it has been. Getting better. Slowly.

Old Book Teardown #3: Vest Pocket Guide To Electrical Testing And Troubleshooting (1987)

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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 Old Book feature of my video blog.

In this video we take a quick look at Vest Pocket Guide To Electrical Testing And Troubleshooting by John E. Traister published in 1987 with 130 pages.

In the video I also wish everyone a happy new year, talk a little about upcoming Xin1 projects, and mention how expensive it will be to upgrade my scope to 350 MHz.

And if you’re interested the Wikipedia page for Logic Analyzer says that the first commercially available instrument to be called a “Logic Analyzer” was the HP 5000A Logic Analyzer, introduced in October 1973.

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!

Victorinox Swiss Champ Red Swiss Army KnifeThis is an image of the product.notes

Let’s go shopping!

How to Remove Old and Useless Drivers in Windows

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I had a problem where I needed to delete a device driver that had been installed so that I could install a replacement. I found How to Remove Old and Useless Drivers in Windows and the process was roughly:

  • Win + X: Windows PowerShell (Admin)
  • SET DEVMGR_SHOW_NONPRESENT_DEVICES=1
  • Win + X: Device Manager
  • View -> Show hidden devices

You can then look for the old driver and remove it.

BIOS settings for ‘verve’

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I went hunting in the BIOS for ‘verve‘ which has a ASUS PRIME B550M-A motherboard and I found I needed to change two settings.

The first setting was Advanced -> CPU Configuration -> SVM Mode = Enabled. This enables AMD-V and allows the CPU to function in a hypervisor.

The second setting was Advanced -> Onboard Devices Configuration -> USB power delivery in Soft Off state (SS) = Disabled. This fixes the problem with the power button not working as discussed here: Earth leakage hack.