Tag Archives: Electronics Project

The Sunrise-Sunset Light | Project 7/30 | Maxitronix 30in1 | In The Lab With Jay Jay

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Silly Job Title: Systems Architect. I am the Systems Architect!

In this video we continue to work through our Maxitronix 30in1, today doing project #7: The Sunrise-Sunset Light. In this project we see how an electrolytic capacitor can control and NPN transistor. By varying the resistor and capacitor we can change the timings of the circuit.

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

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!

Yum Cha IC Extractor Claw IC Chip Pickup ToolThis is an image of the product.

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Electronics Project #23: Banana Plug Into Hook-Clips | In The Lab With Jay Jay

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Silly Job Title: Watt Wizard. I am the Watt Wizard!

In this video we make six cables: connecting banana plugs to hook clips. In order to do this we cut three banana plug cables in half and solder on hook clips to each half, leaving us with six cables.

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

We use the EEVblog BM2257 Digital Multimeter for continuity testing.

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

We use the Plato Model 170 Wire Cutter to cut 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! :)

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 500in1 Electronics Project Lab KitThis is an image of the product.notes

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The Transistor and “Amplification” | Project 6/30 | Maxitronix 30in1 | In The Lab With Jay Jay

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Silly Job Title: Switch Sleuth. I am the Switch Sleuth!

In this video we continue to work through our Maxitronix 30in1, today doing project #6: The Transistor and “Amplification”. In this project we see how an NPN transistor acts as an amplifier.

The HFR trigger coupling I use at the end of the video is called High Frequency Reject, it hides high frequency components from the triggering system and in this case fixed our triggering issue. I haven’t used HFR trigger coupling before. The Rigol user manual for the MSO5000 series doesn’t explain the feature, it just says: “HFR: rejects the high frequency components”.

We use the Rigol MSO5074 Mixed Signal Oscilloscope to examine our input and output voltages, and also to provide a test sine wave for input.

We use the UNI-T UTi260B Thermal Imager to look at the thermals, but there wasn’t anything really to see.

We use the UNI-T UTG962E Signal Generator to provide an input signal, but we couldn’t get it to work properly so we used the signal generate from the scope instead.

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 10″-26″ VESA Wall MountThis is an image of the product.

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Electronics Project #22: DC Barrel Female Into Hook-Clips | In The Lab With Jay Jay

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Silly Job Title: Solder Soldier. I am the Solder Soldier!

In this video we make a power cable running a DC barrel female socket into hook-clips.

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

We use the Riden RD6006 Bench Power Supply to provide power for testing.

We use the EEVblog BM2257 Digital Multimeter to test the cable.

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

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!

Yum Cha Octopus Soldering Third HandThis is an image of the product.

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The Transistor, an Electronic “Trigger” | Project 5/30 | Maxitronix 30in1 | In The Lab With Jay Jay

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Silly Job Title: Power Provider. I am the Power Provider!

In this video we continue to work through our Maxitronix 30in1, today doing project #5: The Transistor, an Electronic “Trigger”. In this project we see how an NPN transistor works.

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!

Emenne 110111 Brush HolderThis is an image of the product.

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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.

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!

MROOFUL Carpenter Mechanical PencilThis is an image of the product.

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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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Electronics Project #20: Making the Self-Charging LED Flasher | In The Lab With Jay Jay

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Silly Job Title: Outlet Overlord. I am the Outlet Overlord!

In this video we build the A Self-Charging LED Flasher By Burkhard Kainka. This project was submitted for the Hackaday Component Abuse Challenge 2025.

The fun thing about this project is that it works even though it doesn’t have a power supply. That’s because the LED sucks energy from the ambient light to charge the capacitors!

It took me three goes to make this work. The first go was with 100 nF ceramic caps on veroboard, and that didn’t work. The next go was with 470 µF electrolytic caps on breadboard, and that didn’t work. Finally I had a go with 1 µF polypropylene film caps and that worked!

The assembled circuit

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

We use the Pro’sKit SS-331H Desoldering Pump for desoldering.

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

We use the Riden RD6006 Bench Power Supply for test power.

We use the EEVblog BM2257 Digital Multimeter for voltage and other measurements.

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

We use the Bysameyee Head-Mounted Magnifier for magnification and light.

We use the Scotch Titanium Scissors to cut things.

We use the Carpenter Mechanical Pencil to make notes.

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

We use the Plato Model 170 Wire Cutter for cutting.

We use the Victorinox Swiss Champ Red Swiss Army Knife for its blade.

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!

Wowstick Wowpad Magnetic ScrewpadThis is an image of the product.

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The One-Way Street | Project 3/30 | Maxitronix 30in1 | Learning Electronics In The Lab With Jay Jay

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Silly Job Title: Chief Fuse Blower. I am the Chief Fuse Blower!

In this video we continue to work through our Maxitronix 30in1, today doing project #3: The One-Way Street. In this project we learn a little more about diodes and LEDs.

We use the EEVblog BM2257 Digital Multimeter to investigate voltages within our circuit.

We use the Sharp EL-546L Scientific Calculator to do some basic calculations.

We use the Carpenter Mechanical Pencil to make our notes.

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!

Fluke 17B+ Digital MultimeterThis is an image of the product.

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Electronics Project #19: Attaching Alligator Clips to AA Battery Holders | In The Lab With Jay Jay

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Silly Job Title: Chief Engineer. I am the Chief Engineer!

In this video we attach some alligator clips to a handful of AA battery holders. I was planning to use these for a Learning the Art of Electronics experiment that I didn’t understand, but now that I understand the problem a bit better I don’t want to go short-circuiting five AA batters… that would be a bad idea!

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

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

We use the EEVblog BM2257 Digital Multimeter for voltage and continuity testing.

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

We use the Plato Model 170 Wire Cutter to snip, snip, snip.

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!

Yum Cha 4pcs 30mm Deep Hole PenThis is an image of the product.notes

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