Mail Call #56: Tools and Components from AliExpress | Learning Electronics In The Lab With Jay Jay

Posted on 2026-04-22 [Wednesday] by Jay Jay

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

This post is part of my video blog and you can find more information about this video.

Silly Job Title: Amp Alchemist. I am the Amp Alchemist!

In this video we take a look at what has arrived in the mail from AliExpress:

3.3V 5V TXS0108E 8 Channel Logic Level Converter Convert TTL Bi-directional Mutual Convert (10pcs)
Mat Glass Tube Tracheal Adapter Nozzle Electric Desoldering Station Parts Replace Accessories For SS-331H Heating Core (White Mat, Filter, Needle)
Wall Mounted Coat Rack Hook With Screws Heavy-Duty Hanging For Kitchen Bathroom Towel Storage Rack Black Metal Clothes BagHanger (88mm 4Pcs)
1pcs Rewirable Plug Socket Australian Female Socket 3 Prong Electrical Socket Grounded Rewire Socket DIY Assembled (15A female, 10A female, 10A male)
IEC320 C14 C13 Electrical AC Socket 3 Female Male Inlet Plug Connector 3pin Socket Mount (Type 4)
Hammer nail clip, finger safe for sliding joint pliers, hammer nail, trim nail pliers to ensure finger safety (blue)
0-36 Round AWG SWG Wire Gauge Thickness Ruler Gauge Diameter Stainless Steel Measurer Tool (Type A)
Keychain Multi-tool Compact Multifunctional Keychain Gadget Portable Tool with Screwdriver Bottle Opener Camping Emergency Tool (1pcs))
1pc/2pcs Stainless Steel Double-Sided Bolt Gauge Card, Portable Dual-Sided Bolt Measurement Card, Nut and Bolts Thread Checker (2pcs Set)
cute school supplies metal ruler Small frame ruler Measuring layout tool Stainless steel square square square square (1pc-S)

The integrated circuit for the TXS0108E logic level converters is labelled: YF08E 7BKG4 D7SL.

Thanks very much for watching! And please remember to hit like and subscribe! :)

p.s. today I added to my spell check.

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 IC Extractor Claw IC Chip Pickup Tool

Let’s go shopping!

Learning the Art of Electronics: 1L.4.3 10 mA Ammeter Redux | In The Lab With Jay Jay

Posted on 2026-04-21 [Tuesday] by Jay Jay

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

This post is part of my video blog and you can find more information about this video.

Silly Job Title: Electronics Guru. I am the Electronics Guru!

In this video we continue to work our way through Learning the Art of Electronics. In this video we return to 1L Lab: DC Circuits and revisit lab 1L.4.3 in which we made a 10 mA ammeter. This time around we do a better job of it, build two ammeters from different movements, and compare our results with an actual known-good ammeter.

As promised here are the notes:

We use the Tenma 72-10505 Bench Power Supply to provide 5 V for testing.

We use the EEVblog BM2257 Digital Multimeter to measure our resistor and as our reference ammeter.

We use the Sharp EL-546L Scientific Calculator to calculate our shunt resistance.

We use the Multicomp Pro MP701033 Resistor Decade Box as our shunt resistor.

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

Thanks very much for watching! And please remember to hit like and subscribe! :)

p.s. today I added mA to my spell check.

Yum Cha Universal Handheld Wire Stripper

notes

Let’s go shopping!

A day in the life

Posted on 2026-04-21 [Tuesday] by Jay Jay

How Radio Waves Were Discovered

Posted on 2026-04-21 [Tuesday] by Jay Jay

An interesting summary of the history of electromagnetic waves.

Module Monday #10: HW-390 Soil Moisture Sensor Module | In The Lab With Jay Jay

Posted on 2026-04-20 [Monday] by Jay Jay

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

This post is part of my video blog and you can find more information about this video.

Silly Job Title: Sparky. I am Sparky!

Today is Module Monday and the module we’re looking at today is the HW-390 Soil Moisture Sensor Module. This is a capacitive sensor which is different to the two previous moisture sensors which were resistive.

The code for today’s demo is here: 2026-04-20-HW-390-Capacitive-Soil-Moisture.ino.

We use the Rigol MSO5074 Mixed Signal Oscilloscope to look for a waveform (there was none).

We use the EEVblog BM2257 Digital Multimeter to measure voltage and resistance.

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

Thanks very much for watching! And please remember to hit like and subscribe! :)

Yum Cha 4pcs 30mm Deep Hole Pen

notes

Let’s go shopping!

Mail Call #55: Tapo P110M Smart Plug, FNIRSI SG-002, USB-C Power and Cables | In The Lab

Posted on 2026-04-19 [Sunday] by Jay Jay

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

This post is part of my video blog and you can find more information about this video.

Silly Job Title: Technical Director. I am the Technical Director!

In this video we take a look at what has arrived in the mail:

We use the Scotch Titanium Scissors to cut open some packaging.

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

Thanks very much for watching! And please remember to hit like and subscribe! :)

p.s. today I added TP-Link, AirPods, and USB-C to my spell check.

ANENG AN-999S Bench Multimeter

notes

Let’s go shopping!

Electronics Project #26: More Banana Jack to Female DuPont Cables | In The Lab With Jay Jay

Posted on 2026-04-18 [Saturday] by Jay Jay

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

This post is part of my video blog and you can find more information about this video.

Silly Job Title: Craig Entertainer. I am the Craig Entertainer!

In this video we make some banana jack to female DuPont cables for connecting various things such as multimeters and power supplies to circuit boards using pin header.

We use the METCAL PS-900 Soldering Station for soldering.

We use the AiXun H314 Hot Air Gun for heat shrinking.

We use the MUIN Solder Fume Extractor to clear the air.

We use the EEVblog BM2257 Digital Multimeter to test our cables.

We use the Hakko CHP 3C-SA Precision Tweezers for tweezering.

We use the Plato Model 170 Wire Cutter to cut our wire.

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

Thanks very much for watching! And please remember to hit like and subscribe! :)

TOOKKS HZY ABS Wire Fixture