Category Archives: Science

Unboxing #39: Unboxing the TI-36X Pro Scientific Calculator | In The Lab With Jay Jay

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

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

In this video we unbox our TI-36X Pro scientific calculator from Texas Instruments.

The books I mention are TI-36X Pro Scientific Calculator Practice Examples and Calculus on the TI-36X Pro Calculator. These books are low quality (lots of errors and omissions) but they’re still useful.

The manual is here: TI-36X-PRO-Guidebook_EN.pdf.

The QR code on the insert goes here: https://education.ti.com/en/select-country/eguides

There’s more information on the Texas Instruments website: TI-36X Pro scientific calculator.

This is the box:

A scan of the box the calculator came in

And this is the insert:

A scan of the insert that came in the box

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Yum Cha Guitar String RulerThis is an image of the product.

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Learning the Art of Electronics: Fig-2N.12-A Current Integrator | In The Lab With Jay Jay

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

Silly Job Title: Component Wrangler. I am the Component Wrangler!

In this video we continue working through Learning the Art of Electronics. Today we build a current integrator with a capacitor. Before we build our circuit we simulate it using EveryCircuit: LAoE Fig-2N-12-A Current Integrator.

We use the Rigol MSO5074 Mixed Signal Oscilloscope to investigate our waveforms.

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

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

We use the Riden RD6006 Bench Power Supply for constant current.

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

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

We use the Plato Model 170 Wire Cutter to trim component leads.

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

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Less-Common Features of Multimeters

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Some interesting features.

His old Fluke 187 meter has a “nS” mode (nano-siemens) which can give crazy high resistance measurements (up to 100 GΩ) as conductance measurements.

His Fluke 87V has a low pass filter on its AC voltage input.

He explains Lo-Z mode and phantom voltage. It works by putting a thermistor across the input leads.

His old Tekpower TP8250 analog meter has a D.Ω range for measuring low resistances and a NULL mode for indicating voltage direction. His Sanwa EM7000 also has a NULL mode facility.

His Tekpower TP8250 also has a battery mode, which will measure the voltage from a battery with a load attached.

His ANENG AN870 has a Non-Contact Voltage sensing (NCV) mode which does what it says on the tin. My NCV device is a Fluke 1AC-C2-II VoltAlert Voltage Detector.

Learning the Art of Electronics: 2N.2.1 Differentiators, Again | In The Lab With Jay Jay

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Silly Job Title: Electricity Guardian. I am the Electricity Guardian!

In this video we continue working through Learning the Art of Electronics. Today we revisit the differentiator we built last week. We build a new differentiator using a 10 nF capacitor and a 100 Ω resistor. Before we build our circuit we simulate it using EveryCircuit: LAoE Fig-2N-7 Differentiator with 50 kHz Sine Input.

We use the Rigol MSO5074 Mixed Signal Oscilloscope to investigate our signal and generate our 50 kHz sine wave.

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

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

We use the Peak Electronic Design Atlas LCR45 LCR Meter to measure our capacitors.

We use the Bysameyee Head-Mounted Magnifier for magnification.

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

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

We use the Plato Model 170 Wire Cutter to trim our component leads.

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!

UNI-T UTi260B Thermal ImagerThis is an image of the product.notes

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Learning the Art of Electronics: 2N.2.1 Differentiators | In The Lab With Jay Jay

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You can support this channel: patreon.com/JohnElliotV

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

Silly Job Title: Surge Sage. I am the Surge Sage!

In this video we continue working through Learning the Art of Electronics. Today we build a differentiator with a resistor and capacitor and test it with a square wave and a sine wave.

We use the Rigol MSO5074 Mixed Signal Oscilloscope to investigate our signals and to generate our input waveforms.

We use the Multicomp Pro MP701033 Resistor Decade Box as our variable 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! :)

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!

Sharp EL-546L Scientific CalculatorThis is an image of the product.notes

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New Book Teardown #10: The Art of Electronics: The x-Chapters 2nd Edition (2026) | In The Lab

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

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

In this video we have a look at what’s in The Art of Electronics: The x-Chapters 2nd Edition by Paul Horowitz and Winfield Hill. The book’s website is here: https://x.artofelectronics.net/

In the same family of books are The Art of Electronics 3rd Edition also by Paul Horowitz and Winfield Hill and Learning the Art of Electronics: A Hands-On Lab Course 2nd Edition by Thomas C. Hayes, David Abrams, and Paul Horowitz.

There were a few things that came up as we flipped through this venerable tome:

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

p.s. today I added Electro-Optical 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!

14500pa Cordless Hand Held VacuumThis is an image of the product.

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Learning the Art of Electronics: Fig-2N.5 Constant Voltage Charge | In The Lab With Jay Jay

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

Silly Job Title: Plugerinerer. I am the Plugerinerer!

In this video we continue working through Learning the Art of Electronics. Today we build the circuit from Fig-2N.5 which is a simple RC circuit that we charge with a voltage source.

Our charge and discharge curves for the 1000 µF capacitor looked like this:

The scope measurement of charging and discharging our capacitor

We use the Rigol MSO5074 Mixed Signal Oscilloscope to investigate our signal.

We use the Riden RD6006 Bench Power Supply to provide 10 V for testing.

We use the EEVblog BM2257 Digital Multimeter for continuity testing the switch we use on the breadboard.

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 Plugerinerer 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!

Rigol PLA2216 Logic ProbeThis is an image of the product.notes

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Mail Call #64: Loot from AliExpress & Amazon, ELP-U3 USB Camera, Spanners and More! | In The Lab

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Silly Job Title: Cable Commander. I am the Cable Commander!

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

SUNSHINE Hard Brush SetThis is an image of the product.notes

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Learning the Art of Electronics: Fig-2N.4 Constant Current Ramp | In The Lab With Jay Jay

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

Silly Job Title: Circuit Breaker. I am the Circuit Breaker!

In this video we continue working through Learning the Art of Electronics. Today we build the circuit from Fig-2N.4 which is a manually switched constant current ramp.

The constant current sources we’re using are these: LT3092 Adjustable Precision Current Source Module, 200mA / 500mA Adjustable Constant Current Source Module, LED Driver.

The other constant current sources I have but that we aren’t using today are these: LT3092 Adjustable Constant Current Source Module 200mA Continuous Adjustable Constant Current Output, Sensor Drive Power Supply.

The box I put everything is the 82x52x35mm-Black box from here: 70/100mm DIY Electrical Enclosure Box Electronic Project Case White Black Grey Instrument Storage Junction Controller Box.

The spanners I mention that I purchased recently are these: 3mm Ultra-thin Open Box Dual-purpose Wrench Set 6-24mm Stainless Steel Spanner Metric Ratcheting Combination Wrench Kit with Bag (6-24mm 12pcs kit).

We use the Rigol MSO5074 Mixed Signal Oscilloscope to investigate Vout.

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

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

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

We use the Yizhan Digital Microscope for close ups.

We use two Riden RD6006 Bench Power Supplies to provide positive and negative power.

We use the EEVblog BM2257 Digital Multimeter for continuity testing.

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

We use the nmsafety Nitrile Gloves for hand protection.

We use the ENGINEER PA-09 or PA-21 Crimping Tool for crimping.

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

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

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!

DTBD WrenchThis is an image of the product.

Let’s go shopping!