Thyristor (Silicon Controlled Rectifier)

Watching Pure Electronics Repair. Learn Methodical Fault Finding Techniques / Methods To Fix Almost Anything I learned that a thyristor—which is also known as a Silicon Controlled Rectifier (SCR)—is a type of TRIAC.

The name “silicon controlled rectifier” is General Electric’s trade name for a type of thyristor.

Number pad

I have various workspaces in my lab, and I call one of them my “booth”. It’s called the booth because I use it when I need to take photos of things which I’m selling on eBay, usually Xbox consoles or games.

Anyway the booth is also setup with two video cameras, one for a view of the booth bench and the other for a view of my face while I am working in the booth. There’s a retractable drawer bolted under the booth bench too which is full of breadboard jumper wires, so this is the place where I do some of my electronics projects, particularly my Maxitronix X in 1 projects. It’s also a convenient workspace when I’m breadboarding something, as I have ready access to my component drawers above.

Today I’ve installed a number pad in the booth so that I can control my cameras in OBS Studio while I’m working at that bench:

Studio upgrade

The computer I’m using to do the recording for In The Lab With Jay Jay is called ‘wonder‘ and it only has six USB ports. I currently have ten USB cameras, and I’m getting more, so I don’t have as many USB ports as I can use. Also ‘wonder’ only has 2TB capacity (non-RAID) for storing the videos I record, which will probably get used up fairly quickly.

So I have been planning an upgrade for ‘wonder’ known as ‘victory‘. My new studio workstation ‘victory’ will have 52TB of RAID storage for video data, 2TB of SSD RAID storage for video recording, 12x USB ports on the back panel, and 4x USB ports on the front panel.

Along with this new studio workstation I intend to get a new camera, a Canon Rebel SL3.

Now all I need to do is save up a cool eight grand!

Unboxing #2: Unboxing of NBD Camera | Learning Electronics In The Lab With Jay Jay

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 unbox my new NBD Camera. It’s cheap and terrible. I mounted it with an Arkon Wall Mount. In a future video I will demo my new camera setup. After we’ve done that we will replace the batteries in my friend’s hair trimmer. Riveting stuff! Stay tuned!

Note: I was confused while making this video, I thought the camera was a “HBD” camera, but it’s an “NDB” camera, and you will see me getting that wrong. Not a super important detail…

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 130 In 1 (130in1) Electronics Project Lab KitThis is an image of the product.notes

Let’s go shopping!

Early Content #8: Making Input Power Cable for EBD-A20H Battery Tester | In The Lab With Jay Jay

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 make an input power cable for my ZKE Tech EBD-A20H Battery Tester and Electronic Load. This power cable connects a DC female input to four male banana plugs, two positive, two negative. This power cable can be used to connect a power source for testing by the EBD-A20H.

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

Let’s go shopping!

Early Content #7: Sorting Soldering Iron Tips | Learning Electronics In The Lab With Jay Jay

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

I was watching EEVblog #168 – How To Set Up An Electronics Lab and Dave suggested using chisel tips instead of conical tips, which inspired me to check what I was using and also to sort the tips I presently own into three categories:

  • Chisel tips
  • Other tips
  • Conical tips

If you’re interested in soldering temperatures I wrote a follow-up post on that topic: soldering iron temperature.

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 10pcs Magic Foam SpongeThis is an image of the product.notes

Let’s go shopping!

Unboxing #1: Unboxing of ZKE Tech EBD-A20H Battery Tester Electronic Load | In The Lab With Jay Jay

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 unbox my ZKE Tech EBD-A20H Battery Tester and Electronic Load. I don’t know how to actually use it yet, so once I’ve figured that out I will make another video to demo it in use.

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 BrushesThis is an image of the product.notes

Let’s go shopping!