Category Archives: Web

Electronics Project #21: DIY Telegraph Machine | Learning Electronics In The Lab With Jay Jay

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Silly Job Title: Joule Juggler. I am the Joule Juggler!

In this video we assemble the Children’s Science Technology Small Production Diy Telegraph Machine in the Science Experiment Equipment Stem Education Model.

The instructions were easy enough to follow, given they are in Chinese! We get the two circuits working perfectly. Really impressed with this one, it works like a charm! Didn’t do any range testing or what not, I’m going to do this one again when my little people come to visit.

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MROOFUL Carpenter Mechanical PencilThis is an image of the product.

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Old Book Teardown #17: Encyclopedia of Electronic Circuits Volume 4 (1992) | In The Lab

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Silly Job Title: Capacitor Captain. I am the Capacitor Captain!

In this video we take a look inside Encyclopedia of Electronic Circuits Volume 4 by Rudolf F. Graf and William Sheets.

We noted while going through the book that πP is short for “microprocessor”, or, essentially what we’d just call a CPU these days.

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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!

MECHANIC UV Curing LightThis is an image of the product.notes

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The “Invisible Power” Radio | Project 4/30 | Maxitronix 30in1 | In The Lab With Jay Jay

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Silly Job Title: Current Connoisseur. I am the Current Connoisseur!

In this video we continue to work through our Maxitronix 30in1, today doing project #4: The “Invisible Power” Radio. In this project we make a simple radio but it doesn’t work for us.

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 Macro Programmable 8-Key Mechanical KeyboardThis is an image of the product.

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Mail Call #50: Silicon Chip Magazine, 6V NiMH Batteries, 10mm LEDs, Mesh Holders, and More!

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Silly Job Title: Hack in Residence. I am the Hack in Residence!

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

We use the Pro’sKit SS-331H Desoldering Pump to talk about the cleaning spikes.

We use the Peak Electronic Design Atlas DCA75 Pro Semiconductor Analyzer to test our 10A10 rectifying diodes.

We use the Brother P-Touch D210 Label Maker for labeling.

We use the Hakko CHP 3C-SA Precision Tweezers to clean up.

We use the Victorinox Swiss Champ Red Swiss Army Knife to open envelopes.

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! :)

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!

3ELIGHTING 14″-42″ VESA Wall MountThis is an image of the product.

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Learning the Art of Electronics: 1L.2.2.1 An experiment: Try your DVM’s current-measurement burden | In The Lab

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Silly Job Title: Electron Enchanter. I am the Electron Enchanter!

In this video we continue to work our way through Learning the Art of Electronics. In this video we start 1L Lab: DC Circuits.

Today we do some experiments to determine the voltage burden of our DVM when it is in current-measuring mode.

We use the Riden RD6006 Bench Power Supply to power our test circuit.

We use the Fluke 17B+ Digital Multimeter to measure current and voltage.

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

We use the EEVblog BM036 Digital Multimeter to measure current.

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

We use the Carpenter Mechanical Pencil to take notes.

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

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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!

Maxitronix 10in1 Electronics Project Lab KitThis is an image of the product.notes

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Module Monday #5: KY-024 Digital Hall Effect Sensor Module | In The Lab With Jay Jay

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

In this video we take a look at the KY-024 Linear Magnetic Hall Sensor Board Switch Speed Counting Hall Sensors Module For Arduino Diy KY024 Hall Sensor.

You can learn more about the Hall effect which is basically a magnetism detector.

The code for this Arduino sketch is here: 2025-11-03-KY-024-digital-hall-effect.ino.

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 13pcs BladesThis is an image of the product.

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