buescher

7 ms·

61.
by buescher 8mo ago
Not if you go to the cheap "Asian brands" like you're thinking with micros, plus with your cheap micro you'll need a reset controller. And budget isn't all BOM cost.
62.
by buescher 8mo ago
Supervisor chips are not complicated. In some ways simpler than a homebrew analog watchdog, and the good ones will handle failure modes a simple watchdog won't, like those that result in an oscillating output.
63.
by buescher 8mo ago
The fact that the Apple II met the new FCC requirements was a major competitive advantage for Apple, and there have been rumors over the years about how that happened. The higher emissions allowance was why you saw the big shift from monst
64.
by buescher 8mo ago
One of the books I first tried to learn from was _Miniature Projects for Electronic Hobbyists_ by one Ken W. Sessions. It was really a unijunction transistor project book. You know how some people will say you'll learn maybe not the
65.
by buescher 8mo ago
And there's someone with a stash of those too. Dual-gate mosfets are one of the ways you know something's been in the back catalog way too long.
66.
by buescher 8mo ago
The TL081 family of op amps is definitely in the "old parts you should (sometimes) use" category (for price/performance) but there have been much better op amps for not much more money for a long time now. Both the now-ancie
67.
by buescher 8mo ago
Sure, it's kind of cringe. I've shipped stuff with 555 timers in it. I'm not proud, but I'm not telling what either. You can do almost all of the 555 tricks with comparators and then some, and you'll learn more do
68.
by buescher 8mo ago
And there's another reason not to recommend them - no one sane has used the bipolar version since the Carter administration but they're still out there and it's another pitfall for beginners.
69.
by buescher 8mo ago
That's the only use for one that isn't (always) a design smell - it makes a really nice missing pulse detector, better than you can easily do with comparators. But if you have the budget, a purpose-made watchdog chip or a tiny mi
70.
by buescher 8mo ago
When the student is ready, the teacher will appear. What a wonderful fellow. Have you gone back and thanked him?
71.
by buescher 8mo ago
Yeah, in the typical value ranges (nanofarads) of a 555-timer-class analog design, you'll need film caps. Ceramic C0Gs are too small and class 2 dielectrics are dismal for anything but bypass. They don't just have temperature coe
72.
by buescher 9mo ago
Kitchen shears and a boning knife were “why did I wait this long” tools for me.
73.
by buescher 9mo ago
I don't know how powerful. It will fit a half sheet. The door is a little less than a foot high and the interior obviously is smaller. I wasn't being "I made timing measurements" exact by saying "almost as fast&qu
74.
by buescher 9mo ago
Working on your knife skills will pay off more than any small organizational optimizations and it's fun. The top oven of a 30" double oven heats up almost as fast as a toaster oven, you don't have to bend over far to use it,
75.
by buescher 10mo ago
It's one thing if you make a youtube video starting from already knowing how to make modern fish sauces, and what they're supposed to taste like, and quite another level of horror if you don't. My recollection of the letter
76.
by buescher 10mo ago
That's the roman dodecahedrons that are a bit more mysterious than that - the "this is for knitting gloves" explanation is a real stretch, and not only because the Romans didn't have knitting.
77.
by buescher 10mo ago
There's probably a village in Iraq that traditionally makes something that would be recognizable to the ancients even if it uses potatoes now.
78.
by buescher 10mo ago
There's speculation that Asian fish sauce came from Greece through the same cultural diffusion processes that brought Greco-Buddhist sculpture as far as Japan.
79.
by buescher 10mo ago
I think the best explanation is that classicists are not makeup artists. I am reminded of reading some classicists' attempt to create garum in the kitchen by making some unpleasant horror of mashed fish or something back in the eighti
80.
by buescher 10mo ago
The folks who urge haste occasionally need to be reminded that there is nothing faster than doing it right the first time. That said, finishing (not just working) quickly is very important. You will never get good if you do not finish a
81.
by buescher 10mo ago
They're looking for the level of answer you might get instantly from an llm. I think figuring out the right balance of "ask chatgpt", critical thought, and ownership in these situations is going to be tricky.
82.
by buescher 10mo ago
"Yes, Socrates, he said, and if you were providing for a city of pigs, how else would you feed the beasts? But what would you have, Glaucon? I replied. Why, he said, you should give them the ordinary conveniences of life. People who ar
83.
by buescher 10mo ago
Catadioptric telescopes are in fact sometimes configured and sold as long (working) distance microscopes: http://www.company7.com/questar/microscope.html Not made out of a single piece of glass, though, which is one of
84.
Quilter's AI Just Designed an 843-Part Linux Computer(venturebeat.com)
3 points by buescher 10mo ago|0 comments
85.
by buescher 10mo ago
If you just want a serviceable telescope, you haven't been able to really save any money by grinding a mirror for decades, unless you're a madman like Dobson who scrounged blanks in the form of things like porthole windows. But t
86.
by buescher 10mo ago
I never really warmed to perl in its era but perl dbi was kind of perfect in its way. If you needed what it could do, it got very intuitive very fast, and was pretty terse. Both of which were supposedly the appeal of perl.
87.
Chamberlain blocks smart home integrations with its garage door openers – again(theverge.com)
10 points by buescher 10mo ago|0 comments
88.
by buescher 11mo ago
> There’s an old electronics joke that if you want to build an oscillator, you should try building an amplifier The way I heard it was "amplifiers oscillate and oscillators don't".
89.
Learning from Sudoku Solvers (2007)(ravimohan.blogspot.com)
15 points by buescher 1y ago|7 comments
90.
by buescher 1y ago
No. The RF equivalent of that would be an antenna pattern. The smith chart is a particular mapping of complex impedance that allows for fairly straightforward calculation and visualization of things like conjugate matches. It's relat

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