I just needed to make a note of this unironic statement which I read here:
You can trust this article because it’s written by academics
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Category Archives: Web
Claudius Ptolemaeus, Almagestum, 1515
Wow. On Wikipedia you can download a 1515 Latin translation of the Almagest: Claudius Ptolemaeus, Almagestum, 1515.
I was able to read this file on my Debian workstation after installing the package djview4.
Undocumented LTspice
Today I discovered Undocumented LTspice while reading Introduction to LTspice – MIT (PDF).
SparkFun ATTiny85 Quick Reference
Today I happened upon this ATTiny85 Quick Reference.
ChipQuik Alloy
On an EEVblog video I learned about ChipQuik Alloy which has a low melting point for removing difficult SMT components with a soldering iron.
Soldering tips from Dave Jones
In his video EEVblog #186 – Soldering Tutorial Part 3 – Surface Mount Dave Jones says to use soldering iron temperature of 300°C to 350°C. He set his hot air gun at 350°C.
He also recommends 4x or 6x magnifications for 0402 SMD and recommends not to use them (or smaller) unless you have to because they can increase manufacturing costs due to being small and fiddly and requiring magnification during soldering. The smaller components can affect yield.
For solder he recommends 0.46mm solder (recommended Multicore brand). And flux. Always use flux.
Also he’s on the record as preferring a chisel tip. In this video he also demoed a thing called a “well tip“, which I have never seen or used before. Apparently good for drag soldering?
While I was researching this post I came across the Hakko Product Lineup, they have some nice looking kit!
p.s. in EEVblog #180 – Soldering Tutorial Part 1 – Tools Dave suggests solder in this order:
- 62sn/36pb/2ag
- 63sn/37pb
- 60sn/40pb
The first one with silver in it can be good for some SMT devices. The second one has a more stable melting point. The third is tried and tested but has variable range of melting points.
Note: sn = tin; pb = lead; ag = silver.
Learning LTspice
Shot In The Dark II | Project 8/20 | Maxitronix 20in1 | Learning Electronics In The Lab With Jay Jay
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
In this video I do the eighth Maxitronix 20in1 Electronic Project Lab project: Shot In The Dark II.
This article will tell you all about anodes and cathodes of capacitors: 19.3: Electrochemical Cells
The Veritasium video about the number 37 which I mention is this one: Why is this number everywhere?
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Oloey Safety Goggles notes |
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The 6502 Instruction Set Database
This is great: The 6502 Instruction Set Database. It’s a database with details of opcodes for the 6502 processor. You can see the SQL and TSV.
Extra Content #7: The SCSI Bus and IDE Interface: Protocols, Applications and Programming
This post is part of my video blog: In The Lab With Jay Jay.
You can support this channel on Patreon: patreon.com/JohnElliotV
In this video I pull the floppy disk out of the cover of my copy of The SCSI Bus and IDE Interface: Protocols, Applications and Programming (2nd Edition).
I have this wonderful old book The SCSI Bus and IDE Interface: Protocols, Applications and Programming (2nd Edition). It was published in 1997 but is still available for purchase through Amazon.
The book comes with a floppy disk (that’s right: a floppy disk!). I had to buy a USB floppy disk drive to read it. I have made the content from the disk available in a tarball, here: scsi.tgz.
If you just want to read the files, those are here:
Following is a list of products I use which may appear in my videos. Clicking through on these links before purchasing from Amazon, eBay, or AliExpress is a great way to support the channel at no cost to you. Thanks!
Let’s go shopping!