Category Archives: Design

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

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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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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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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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Learning the Art of Electronics: Constant Current BJT Circuit from AoE | 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: Switch Sleuth. I am the Switch Sleuth!

In this video we continue working through Learning the Art of Electronics. Today we don’t do any course work, rather we do two exercises from the text, AoE ex 2.9 and 2.10 on page 86, and make a BJT-based current source as described in AoE Figure 2.32 on page 87.

These are the results I got as I varied the load resistance:

RL Ω VL V IL µA VBE V
1 0.06 0.0 -0.746
10 0.18 0.0 -0.745
100 1.21 0.0 -0.740
1k 5.41 0.0 -0.699
10k 7.54 4.9 1.145
100k 7.79 4.8 1.598
1M 7.88 4.9 1.637
10M 7.96 5.0 1.641

My notes are here:
John's notes for AoE ex-2.9
John's notes for AoE ex-2.10
John's notes for the circuit in AoE figure 2.32 A

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 for fume extraction.

We use the Riden RD6006 Bench Power Supply for 10 V power input.

We use the EEVblog BM2257 Digital Multimeter to take measurements.

We use the Fluke 17B+ Digital Multimeter to take measurements.

We use the Peak Electronic Design Atlas DCA75 Pro Semiconductor Analyzer to check our NPN transistor pin out.

We use the Sharp EL-546L Scientific Calculator to crunch some numbers.

We use the ElectroCookie PCB Prototype Solderable Breadboard to build our circuits on.

We use the Multicomp Pro MP701033 Resistor Decade Box as a variable load 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 AoE 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 Stainless Steel SpudgerThis is an image of the product.

Let’s go shopping!