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LM358

261 karma · joined February 12, 2024

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LM358··on Isar Aerospace reaches orbit and deploys payloads on second flight
>we need new planets to occupy

We absolutely do not

LM358··on How Fairphone built the Fairphone Gen 6+
No VoLTE on any Samsung phone running non-stock OS is a dealbreaker.

Sent from my Galaxy S10 running LOS

LM358··on Extinct Media Museum Tokyo
DAT Walkmans (Walkmen?) had other problems. DAT transports are vastly more complicated than those used for compact cassette, being a close relative to VHS and other video tapes. They're supposedly nice when they work though!
LM358··on Wind turbine is being used to produce zero-carbon "green ammonia" fertilizer
That is the Birkeland-Eyde process, which was superceded by the Haber-Bosch process because it is much more energy effective.

As far as I understand, the reasons for using methane as the hydrogen source in industrial processes is because of costs and the difficulty in scaling electrolysis industrially.

LM358··on Ask HN: Any interesting niche hobbies?
Solid rocket motors are conceptually simpler, but much more dangerous and in many jurisdictions legally dubious to make yourself compared to hobbyist bi-liquid or hybrid designs.
LM358··on Lost Doctor Who episodes found
Sorry, no, that is absolutely not something worthwhile spending energy on
LM358··on 10% of Firefox crashes are caused by bitflips
10% of crashes does not imply 10% of your crashes.
LM358··on CIA suddenly stops publishing, removes archives of The World Factbook
Probably because the author was an insufferable person and that that very book was part of the basis for (not "twisted") her inhumane and pretentious pseudo-philosophical spin on libertarianism?
LM358··on The world of Japanese snack bars
>as a kid it shocked me that a customer in the US could get away with "I'll have a coke" as their only utterance to a waiter - no hello, please, thank you.

As a Norwegian who's been visiting the US for quite a few times now (as we speak), I've always appreciated the "hello, please, thank you", but what really gets me are the incessant "how are you"s.

LM358··on Microsoft lowers AI software growth targets
Yes. As if it wasn't out of touch enough, they even did it on the server version as well!
LM358··on Why are my headphones buzzing whenever I run my game?
A filter like that will have very little attenuation in the audio spectrum.

I agree however that indiscriminately throwing ferrites at problems can be a good solution!

LM358··on Why are my headphones buzzing whenever I run my game?
Look, if it works for you and you're happy with it - keep it. More power to you.

I just know that if I handed over something with such shoddy soldering to a customer, I'd lose my job or at the very least lose soldering privileges. But I am working with things that cost slightly more than 99$ that you can't find on store shelves :)

LM358··on Why are my headphones buzzing whenever I run my game?
>They seem to make decent products

I don't agree with that sentiment. Their designs are subpar and the quality of the soldering is (maybe was) unacceptable:

https://www.audiosciencereview.com/forum/index.php?threads/h...

https://www.audiosciencereview.com/forum/index.php?threads/b...

The above review specifically goes into the problem from OP.

There's also their amplifier with a rather non-standard architecture that tries to solve a non-problem (injecting feedback in a NFB loop - I might remember wrong, if so, forgive me) which leads to it measuring double digit (!) THD if you feed it a sine wave. I'm not an experienced engineer but it is IMO a non-starter to have an amplifier try to decide what is and isn't a musical signal as part of its protection circuitry, short of detecting DC offsets or shorts (pun not intended). I'm not in the market for a 1800$ amplifier that goes bzzzt if you feed it music it disagrees with [1]

https://www.stereophile.com/content/schiit-audio-ragnarok-in...

>Noise from using USB power delivery for audio devices is common.. that’s why you can (and should) use the dedicated power input to you DAC/amp

I don't disagree with your point. However, a company designing products like these should be able to design a filter for this usecase unless you're trying to use your DAC as a a measuring device, or there is something seriously wrong with your motherboard. I honestly haven't heard of any other brand product with this problem unless it's ~20 years old and in need of repair. It doesn't cost much in the BOM, however it does cost in engineering hours/competence and QA and this is something that should have been caught by the latter.

[1] https://www.youtube.com/watch?v=NzMbY4sZvIw

Edit: I just want to add that I don't want to hate on Schiit. Honestly I'd like new audio companies to succeed and I applaud them for rejecting MQA back in the day and for not going all-in on the audiofool bullshit one sees too much of. But seeing such poor engineering and QA leaves a sour taste in my (electronics engineering) mouth. Maybe they have improved lately, I wouldn't know. I'm not really in their market anyways.

LM358··on Why are my headphones buzzing whenever I run my game?
Not at all surprised to see that it's a Schiit DAC causing this problem
LM358··on Tektronix equipment has been used in many movies and shows
Yes! I went there on my first trip to Portland last year for work.

It was mesmerizing to look at all the beautiful equipment and meet all the cool people there. I've forgotten his name, but I spent at least one hour with an ex-Tektronix employee who started his career with tubes and ended it with writing FPGA code who told me many wonderous stories from his career. Highly recommended if you're at all into electronics!

LM358··on EQ: A video about all forms of equalizers
A UMIK-1 is pretty cheap these days. Also check out REW.
LM358··on UK Millionaire exodus did not occur, study reveals
Wealth tax on houses (and apartments, cabins etc..) are calculated as 25% of market value up to 10 MNOK and 70% over that. So you'd need to own a rather luxurious house before having to pay a rather modest tax.

Some municipalities also have a separate property tax which iirc is usually an order of magnitude lower than the wealth tax.

LM358··on Game preservationists say Switch2 GameKey Cards are disheartening but inevitable
Yes, both at the EU level and also in many countries (EU and non-EU), see:

https://en.wikipedia.org/wiki/European_Citizens%27_Initiativ...

https://en.wikipedia.org/wiki/Popular_initiative

LM358··on Raspberry Pi Lidar Scanner
Never mind hobbyists - I work in electronics R&D and my two favorite suppliers are US based even though I am not. Anxious to see how this plays out and that's not even considering our production departments.
LM358··on Alice Hamilton waged a one-woman campaign to get the lead out of everything
I don't know where you guys are looking - both Farnell and RS Components, which are UK based and among the suppliers I use the most at work, stock leaded solder. There are other suppliers more local to me that stock it as well.

It's not like it's banned or anything, it's just not allowed to be used in (most) consumer electronics.

LM358··on Ask HN: Seeking Device to Normalize Audio Output for Consistent Volume Levels
This would be a good option provided the source is stereo and either the speakers are active or the amplifier has a processor loop.
LM358··on Blackcandy: Self hosted music streaming server
Apart from many reasons mentioned by others, I find the "nearly unlimited" catalog to be very overrated. Every time someone asks me to queue a song, it's on Spotify maybe 50% of the time - as soon as you start delving into dance/single-oriented genres of the past, streaming services just won't cut it.

For the record (heh) I also have an extensive vinyl/tape/CD collection in addition to a few TB of pirated FLACs.

LM358··on Nixie Tubes (2015)
I disagree. Most SMD components are perfectly fine to solder by hand. Using a good soldering station with a knife cartridge makes the job much easier. Same with a microscope, but I home I use a headband with magnifying glasses. It does of course take some more practice than through hole components and in many cases it's easier to solder them in an oven, but then you need solder paste and preferably a stencil.

The only types where I'd reach for a heat gun are packages like TO-252 and TO-263 where the backside is soldered directly to a pad on the PCB, but for hobbyist purposes I think even that could be doable with a powerful iron and a large tip.

LM358··on FDA proposes ending use of oral phenylephrine as OTC nasal decongestant
"simple and convenient" does a lot of heavy lifting in this paper - n-BuLi, chromium hexacarbonyl and MoOPH (had to look that one up!) is not something you find outside of a well equipped lab and shouldn't be touched by anyone who isn't highly experienced.
LM358··on FDA proposes ending use of oral phenylephrine as OTC nasal decongestant
I have never seen "meth" taken to mean anything other than methamphetamine, and certainly not methylphenidate.
LM358··on Singapore OKs 4,300km subsea cable for importing electricity from Australia
Electromagnetic fields? Emitted by fibre-optic cables?
LM358··on [dead]
>Larry Ellison, the exorbitantly rich cofounder of software outfit Oracle

Take note of the name. People like him should be forcefully removed from society.

LM358··on After 12 years at Google, I have decided it is time to move on
>It is cute you think a couple millions dollar is a lot.

And utterly disgusting to see how far removed from reality some people here are. A million dollars is life changing money for the vast majority of the population, and well beyond what most engineers earn.

LM358··on I Quit Spotify
Foobar2000 does this.
LM358··on Things I Won't Work With: Dimethylcadmium (2013)
Chelation is the keyword you're looking for: https://en.wikipedia.org/wiki/Chelation
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