About Jay Jay

Hi there. My name is John Elliot V. My friends call me Jay Jay. I talk about technology on my blog at blog.jj5.net and make videos about electronics on my YouTube channel @InTheLabWithJayJay.

Learning the Art of Electronics: Fig-1N.26: VOM reading departs from ideal; measuring Rin | In The Lab

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

Silly Job Title: Volt Vanguard. I am the Volt Vanguard!

In this video we keep on working through Learning the Art of Electronics chapter 1N DC Circuits. Today’s circuits are from Figure 1N.25: Set of similar voltage dividers: same Vthev, differing Rthev and Figure 1N.26: VOM reading departs from ideal; we can infer Rin-VOM.

We use the Riden RD6006 Bench Power Supply to provide power for our test circuits.

We use the Pro’sKit MT-2207-C Analog Multimeter to measure voltage with an analog meter.

We use the Sharp EL-546L Scientific Calculator to calculate some figures.

We use the Multicomp Pro MP701033 Resistor Decade Box to provide various resistances for our circuits.

We use the WilliamKlein Music Stand to hold the book so we can clear some space on the bench.

We use the Carpenter Mechanical Pencil to make our notes.

We use the Kaisi S-160 45x30cm Repair Mat to use as our workspace.

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 67 Holes Brush HolderThis is an image of the product.

Let’s go shopping!

Unboxing #27: Unboxing UGREEN Uno USB-C Hub | 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 over here.

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

Silly Job Title: Bench Master. I am the Bench Master!

In this video we unbox an UGREEN Uno USB C Hub, 6-in-1 Type C Adapter with 4K@60Hz HDMI, 10Gbps 2×USB C& A 3.2 Data Ports, 100W Power Delivery for PC, Laptops, Phone, MacBook Air, iPad Pro, Galaxy, iPhone 16/15 Series and More which arrived from Amazon.

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 GogglesThis is an image of the product.notes

Let’s go shopping!

Mail Call #41: Loot from Amazon: Mesh Baskets, USB Hub, Power Supply, Batteries and More

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

Silly Job Title: Bench Master. I am the Bench Master!

In this video we take a look at what arrived from Amazon including some more of our QuickStudy cheatsheets:

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.10 Scalpel BladeThis is an image of the product.

Let’s go shopping!

Mail Call #40: Tools, Kits, Boards, and Components from AliExpress | In The Lab With Jay Jay

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

Silly Job Title: Solder Soldier.

In this video we take a look at what arrived 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!

Yum Cha Mini Magnetic Precision Screwdriver SetThis is an image of the product.notes

Let’s go shopping!