The S-shaped curve which looks a little like exponential progress in the beginning is the Sigmoid function.
Interlude #4: Learning LTspice Part 1 | Learning Electronics In The Lab With Jay Jay
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Part 2 of this two part series is here.
In this video I begin to use LTspice for the first time. I am running this software under Wine on KDE Plasma running on Debian 12 bookworm.
This is part one of two. In the second part I will show you the answers I got from my question over on the EEVblog forum.
My first LTspice circuit is the following circuit from project 9 from the Maxitronix Sensor Robot 20, which I have code named the 20in1.
The wires, power supply, resistors, capacitors, and transistors were easy to model, but the piezo buzzer and the CdS cell were both tricky.
In the end I found the Misc/xtal.asy component to use for the piezo buzzer. I got the various parameters for it from this datasheet (I just picked that component at random, I’m not sure what actual piezo buzzer is used in the Maxitronix kit).
The answer to my question on the EEVblog included hints about how to model the CdS cell.
Armed with my new knowledge I am now prepared to make part two of this interlude, so please stand by for that.
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 29 In 1 Mini Precision Screwdriver Setnotes |
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Labyrinth walking: An ancient activity that could help ease anxiety
I thought this was interesting: Labyrinth walking: An ancient activity that could help ease anxiety.
Learning KiCad
This is on my agenda (but not with priority, I will circle back for this one): Learn KiCad.
Easy Way to Make Bluetooth Control Scrolling Text Display | 64*16 LED Matrix
Owning Computer Stores in the ’90s
This was fun: Owning Computer Stores in the ’90s. It’s a video from a father and son talking about Dad’s computer franchise selling computers in the 90s until the market tanked in 2000.
Cognition
I didn’t read this whole thing closely, but oh my: Cognition. It’s a weird programming language.
A milestone for In The Lab With Jay Jay
The Decline of Hobby Electronics?
An interesting video published eight years ago about the changing landscape of hobby electronics in Australia.
New Book Teardown #4: Beginner’s Guide to Reading Schematics 4th Edition (2018) | In The Lab
This post is part of my video blog and you can find more information about this video on this show’s homepage which is here.
You can support this channel on Patreon: patreon.com/JohnElliotV
Silly Job Title: Electron Enchanter
This video is part of the New Book Teardown feature of my video blog.
In this video I take a look at Beginner’s Guide to Reading Schematics, Fourth Edition by Stan Gibilisco published in 2018. The book has 209 pages.
Some things which came up during the video:
From the Wikipedia article on Bifilar coil: A bifilar coil is an electromagnetic coil that contains two closely spaced, parallel windings. In electrical engineering, the word bifilar describes wire which is made of two filaments or strands. It is commonly used to denote special types of winding wire for transformers. Wire can be purchased in bifilar form, usually as different colored enameled wire bonded together. For three strands, the term trifilar coil is used.
From the Wikipedia article on Power dividers and directional couplers: Power dividers (also power splitters and, when used in reverse, power combiners) and directional couplers are passive devices used mostly in the field of radio technology. They couple a defined amount of the electromagnetic power in a transmission line to a port enabling the signal to be used in another circuit. An essential feature of directional couplers is that they only couple power flowing in one direction. Power entering the output port is coupled to the isolated port but not to the coupled port. A directional coupler designed to split power equally between two ports is called a hybrid coupler.
From the Wikipedia article on Waveguide: A waveguide is a structure that guides waves by restricting the transmission of energy to one direction. Common types of waveguides include acoustic waveguides which direct sound, optical waveguides which direct light, and radio-frequency waveguides which direct electromagnetic waves other than light like radio waves.
The list of parts suppliers from the back of the book (some have closed down):
- All-Electronics
- Design Notes
- Electronix Express
- Jemeco Electronics
- Mouser Electronics
- Radio Shack
- Ramsey Electronics
The books from the suggested additional reading:
- Electronics Explained: Fundamentals for Engineers, Technicians, and Makers
- Electricity & Electronics
- Electricity Demystified
- Electronics Demystified
- Ham and Shortwave Radio for the Electronics Hobbyist
- Teach Yourself Electricity and Electronics
- Complete Electronics Self-Teaching Guide with Projects
- Hacking Electronics: Learning Electronics with Arduino and Raspberry Pi
- Circuit Analysis For Dummies
- Practical Electronics for Inventors
The author’s website is here: https://www.sciencewriter.net/
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 Telescopic Magnetic Pickup With Light |
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