Made some cables. Male banana plug into male jumper wire. Got some of these and cut them. Made a pair of long ones and two pairs of short ones. This is so I can plug my multi-meters into my breadboards. Gonna do the same thing with some BNC attached coax so I can hook up my scope and with some female DuPont cables so I can plug into male pin headers.
Author Archives: Jay Jay
Coax cable options
Today I got myself two of these RG316 coaxial cables. Other choices were RG58 and RG174 options. I found this discussion on reddit which suggested that for my application (connecting my bench scope to circuits for testing) any of them will probably do. I got two 4 meter cables, so when I cut them in half I will have four 2 meter cables.
The United States Frequency Allocation Chart
Some notes about how spectrum is allocated in the USA: The United States Frequency Allocation Chart
I must, must, must not get involved in radio. I would love to, but I don’t have enough time or money! Gotta stay digital… :P
Visual design rules you can safely follow every time
Some interesting rules of thumb for user interface design: Visual design rules you can safely follow every time.
One note I want to make for later on is to use #222222 instead of #000000 and #F2F2F2 instead of #FFFFFF.
Anatomy of a cheap USB to Ethernet adapter
An interesting write up concerning a shanzhai knock off: Anatomy of a cheap USB to Ethernet adapter.
SCSI / ATA Translation (SAT)
So “SAT” can stand for SCSI / ATA Translation.
Firefox snap, Ubuntu, EPSON printer not available
So I had to repave my primary workstation to fix a problem with my ZFS configuration (my ashift setting was causing problems) and things are mostly back online, but I wasn’t able to print from firefox for some reason.
I think the problem was that I had installed firefox prior to adding the printer. Anyway, long story short, this command seemed to fix the problem for me:
# snap connect firefox:cups-control
Bipolar Junction NPN and PNP transistors
300in1 Project 155. DTL OR GATE
So I did a circuit. This is a diode/transistor logical OR gate. I’m learning. What I’d like to understand is why the resistors are necessary and why are the resistor values picked such as they are? I’ve asked a question about this over on the EEVblog: What is the purpose of the resistors in this schematic?.
Homework
This is a part of the homework feature of my blog, which is an ongoing conversation with my mate S.F.
SMBC comic: holy shit the tape is in backwards!
- fraught
-
- Filled with a specified element or elements; charged.
- Marked by or causing distress; emotional.
The VR guy is Jaron Lanier.
I was looking up the The Social Dilemma and I discovered the collective action problem, very interesting!
As promised there are some notes about my first contact with ChatGPT.
Check out James Mickens. Two talks of interest:
- USENIX Security ’18-Q: Why Do Keynote Speakers Keep Suggesting That Improving Security Is Possible?
- HiPEAC 2020 keynote 1: James Mickens on software-defined microarchitecture
I asked ChatGPT why they call it the 64 thousand dollar question:
- Willie, why do you rob banks?
- Because that’s where the money is!
Elon Musk deletes tweets critical of Twitter after weekend barrage.
The distributed social network is Mastadon.
Recently I read How to Be an Artist. Essentially how to be poor and work hard!
Hamilton’s Pharmacopeia is an American docuseries, which premiered on Viceland on October 26, 2016. The show follows Hamilton Morris as he explores the history, chemistry and social impact of psychoactive substances. It chronicles Morris’ travels and first-hand experiences, as well as interviews with scientists, shamans and fringe culture figures.
Here are the lyrics to No Pussy Blues.
True Blood is an American fantasy horror drama television series produced and created by Alan Ball. It is based on The Southern Vampire Mysteries, a series of novels by Charlaine Harris.
And I mentioned my blog post about money and Straya.
Also I mentioned that StarOffice became LibreOffice. I use LibreOffice quite a lot, particularly Writer (Word equivalent) and Calc (Excel equivalent), it’s good capable software.
Love,
John.
p.s.



