qwezxcrty

11 ms·

91.
by qwezxcrty 4y ago
I also have the filter and laser part, but the performance of the filter and beam splitter probe is too poor for it to be useful. At least mine have strong self-fluorescence, making it hard to get a meaningful data as the laser intensity ar
92.
by qwezxcrty 4y ago
Have been playing with one until somehow zapped it by either ESD or common mode voltage from a cheap AC adapter and inadvertently grounding some part of the PCB. Mine is now a stone that will never finish initialization (no LED color change
93.
by qwezxcrty 4y ago
Maybe you can try some different brands of braid and flux. However, actually I got four out of the dozen done without even brand braid, but with some scavenged copper grounding braid, as the proper one usually on the bench was stolen by a c
94.
by qwezxcrty 4y ago
It's not very difficult if you do drag soldering rather than attempt to solder the pins one by one. I do it in a slightly different way, just put a ton of solder and clean the shorting with braid. I'm not so proud of my soldering
95.
by qwezxcrty 4y ago
It works with my Xiaomi and Lenovo 65W chargers. Maybe you can check the power of your charger and if it supports the PD protocol.
96.
by qwezxcrty 4y ago
If it's really 80M, DS1104Z is still not fast enough. Maybe something with like 350M BW is required. Also note that many modern scopes have software bandwidth limitation, and many of them are hackable. Rigol and Siglent are famous for
97.
by qwezxcrty 4y ago
I use Weller stations at work, and have a Pinecil V2 at home. Have to admit haven't use it so heavily, nor attempted to solder SMTs with it, but it seems good enough for through hole devices.
98.
by qwezxcrty 4y ago
For these (relatively) high speed serial interface, a scope with protocol decoding is actually more suitable.
99.
by qwezxcrty 4y ago
As a personal experience, I'm very sensitive to cigarette smoke, but not at all to soldering fumes. It's probably better to be an upgrade rather than a must-buy for a beginner. One can invest on the extractors later when he or sh
100.
by qwezxcrty 4y ago
I actually have the opposite feeling. I have used quite a few low-end scopes at work, a new Siglent, Agilent DSO7034A, Tek DPO3054, some Tek TBS2000, some RS RTB2 and Keysight 3034T. I prefer the RS if my boss is paying for it, but there is
101.
by qwezxcrty 4y ago
Hmm, but just a side note, one should not expect too much from it as a traditional analog scope. It's slow and its Achilles heel is the lack of an on board memory. It can neither cache more than 16k points, nor upload the samples throu
102.
by qwezxcrty 4y ago
Interesting, it appears the simulation is done with netlist generated from the layout, so it's not a toy TCAD but something else?
103.
by qwezxcrty 4y ago
According to the WSJ article I read today, it is indeed a spy balloon. Well, then this time CPC certainly did a bad job unless they already got some valuable data.
104.
by qwezxcrty 4y ago
Yes, it is definitely a silly move if it's really a spy balloon. But I think it's still too early to draw the conclusion, given the strong Bayesian prior that how unlikely it is for China, with advanced spy satellites and a spy ne
105.
by qwezxcrty 4y ago
Well, maybe I'm a minority for having a EE/physical science hobby, but also belong to the kind of people you are referring to. I'm pretty stuck to Windows as I need it to drive my home lab. I need to run Windows to 1. Get dat
106.
by qwezxcrty 4y ago
Or what if, it's not a spy balloon and a genuine mistake?
107.
by qwezxcrty 4y ago
I'm fully aware of the KMS stuff and how it works. But there are windows editions that are not licensed by and cannot be activated with KMS. I don't think there is any public way of pirating them apart from finding a working MAK k
108.
by qwezxcrty 4y ago
To my knowledge, Taiwan had a similar situation before the end of White Terror in early 90s. The US apparently had no problem with pro-American dictators.
109.
by qwezxcrty 4y ago
How you activate that? I think KMS will not work for IoT versions. I use KMS activated non-IoT LTSC 2021 on my obsolete Surface. MS will not sell that edition to "consumers" like me, so I don't feel guilty at all for pirating
110.
by qwezxcrty 4y ago
Understandable, I used to take a K train twice every year before my grandparents passed away. I could always manage to get a seat as my route was less busy. It's certainly not a enjoyable experience. However, I'd recommend to try
111.
by qwezxcrty 4y ago
Ah, actually I just meant that specific character. There are indeed many 多音字 in Chinese and they are frequently used, but 生 is a simple one.
112.
by qwezxcrty 4y ago
I'm not sure about that.. I just measured on screenshots of WeChat and WhatsApp, at least on my Android phone with no UI customization, the text height only differs by a few pixel. WeChat even have a denser user interface showing more
113.
by qwezxcrty 4y ago
Interesting, 生 have only one pronunciation in Chinese (native speaker, ref: https://zh.wiktionary.org/zh/%E7%94%9F ). Didn't know it's so different in Japanese.
114.
by qwezxcrty 4y ago
Although some weird Japanese phone makers did have smartphones with radiation detector built-in (SHARP 107sh and 205sh), I don't think it would be a popular feature. There isn't so many cases in daily life that one can encounter a
115.
by qwezxcrty 4y ago
I have a question, is PFAS still persist in processed PTFE? From what I read, the concerns are mostly with the manufacturing rather than the safety of the resin itself.
116.
by qwezxcrty 4y ago
It's a wonderful project. Allowing me to run a 30 years old Win16 companion program (for a HP 53310A frequency domain analyzer) on modern 64bits Windows.
117.
by qwezxcrty 4y ago
Wait, isn't this just an usual clause that forbids dual citizenship? Sounds OK to me.
118.
by qwezxcrty 4y ago
It's sad but I heard HP already sold off the support and development of HP Prime to another company. There are still bugs to be fixed, but next firmware update may never come. It's my favorite calculator. It's sad to see it&#
119.
by qwezxcrty 4y ago
Honest question: is it OK if I live near UChicago (visiting) and go out alone by foot at 9-10pm?
120.
by qwezxcrty 4y ago
Asian standard of crime rate is very different from the US... I used to enjoy the night hanging out with friends or having fun alone in big Chinese cities (Beijing and Shanghai), hopping on public transportation, and having food in narrow s

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