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Category Archives: Learning
321 method for focus
- For three minutes: move/exercise (e.g. squats)
- For two minutes: brain dump everything in your head to paper
- For one minute: plan. write down what you are going to work on. nominate time or content goal. keep your plan on your desk where you can see it
Learning the Art of Electronics: Fig-2N.4 Constant Current Ramp | In The Lab With Jay Jay
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: 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 Wrench |
Let’s go shopping!
HTML Can Do That
An interesting demo of some of the things you can do with contemporary HTML: HTML Can Do That. No JavaScript required!
Impedance Explained
Learning the Art of Electronics: Constant Current BJT Circuit from AoE | In The Lab With Jay Jay
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: 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:
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 Spudger |
Let’s go shopping!
Cut a Circle in Three
CH341A Programmer
Update: there is conflicting information on the interwebs regarding the “fix” for this programmer. Some people say you should do it. Other people say it isn’t necessary. You decide!
Today I watched You Need This $10 Flash Programmer, But It Needs This Fix Before You Use It! and I picked up a few from AliExpress:
- CH341A Programmer Adapter + SOIC8 Adapter+ SOP8 Clip With Cable+1.8V Adapter CH341A EEPROM Flash BIOS USB Programmer ZIF Adapter
- CH341A Programmer adapter+SOIC8 adapter+ SOP8 clip with cable+1.8V adapter CH341A EEPROM Flash BIOS USB programmer ZIF adapter
- CH341A/B Programmer Module DIY KIT 24 25 Series EEPROM Flash BIOS USB + SOIC8 SOP8 Test Clip For EEPROM 93CXX / 25CXX / 24CXX
The video references thingino.com, which has firmware for cameras with Ingenic SoC.
Learning the Art of Electronics: Constant Current Reading from AoE and AoEx | In The Lab
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: Connector Kingpin. I am the Connector Kingpin!
In this video we continue working through Learning the Art of Electronics. Today we don’t do any course work, rather we do selected readings about current sources found in the text.
Our reading from The Art of Electronics 3ed includes:
- §2.2.6 pg 85-87 RE: resistor and BJT current sources
- §4.2.5 pg 228-230 RE: op-amp current sources
- §9.3.14 pg 620-623 RE: voltage-regulator current sources
And our reading from The Art of Electronics: The x Chapters includes:
- §2x.2 pg 103-107 RE: Current-Source Problems and Fixes
- §2x.3 pg 108-109 RE: The Cascode Configuration
Note that the 2nd edition of the x-Chapters is available for pre-order: The Art of Electronics: The x-Chapters 2.
When we continue next week we will do the various exercises we ran out of time to do today, and build some current sources, starting probably with a BJT version.
Thanks very much for watching! And please remember to hit like and subscribe! :)
p.s. today I added BJT and Cascode 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 13-in-1 Multi-function Digital Display USB Voltage Current Power Meter |
Let’s go shopping!
Unboxing #34: Unboxing the Sharp EL-506TS Scientific Calculator | In The Lab With 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: Digital Dancer. I am the Digital Dancer!
In this video we unbox the Sharp EL-506TS scientific calculator. In this video I also mention about my Casio fx-991CW and my Sharp EL-546L.
The constants used in the calculator are taken from CODATA Recommended Values of the Fundamental Physical Constants: 2018 which is an impressive scholarly work.
I am sorry for the poor focus and zooming in this video. I have ordered a new camera which should help me to minimize issues like this in future videos.
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!
Oudisi 9-inch 16 in 1 Wire Stripper notes |
Let’s go shopping!