#chinesium — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #chinesium, aggregated by home.social.
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"Heat-resistant heatshrink tubing"
A: Hey, this stuff isn't working.
B: How can you tell? -
"Heat-resistant heatshrink tubing"
A: Hey, this stuff isn't working.
B: How can you tell? -
Saw a product listing (on AliExpress, natch...) for an MP3 player module.
"MP3 player module I2C non-destructive"
I didn't realize other modules would reach back to the CPU and delete the file it was sending... 😕
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Saw a product listing (on AliExpress, natch...) for an MP3 player module.
"MP3 player module I2C non-destructive"
I didn't realize other modules would reach back to the CPU and delete the file it was sending... 😕
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This is perhaps a deeper relationship than I want with a tube of glue [1].
[1] Actually a chemical adhesive - specifically, a type of contact cement - rather than glue, which is made from animal tissues. I'm using it in the looser sense because that's what the listing uses. Yes, living with a conservator means you understand the very precise differences between these things 😉
[Edit: correct description in alt-text]
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This is perhaps a deeper relationship than I want with a tube of glue [1].
[1] Actually a chemical adhesive - specifically, a type of contact cement - rather than glue, which is made from animal tissues. I'm using it in the looser sense because that's what the listing uses. Yes, living with a conservator means you understand the very precise differences between these things 😉
[Edit: correct description in alt-text]
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"high-definition windshield wiper"
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"high-definition windshield wiper"
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Well, this is annoying.
I have some little power #modules (bought on #AliExpress, natch) that were advertised as automatic boost/buck converters. Input from <4V to >30V, output from 1.25V to 35V.
They're based on the XL6009 switching converter, which supports auto-buck-boost as one mode.
But they appear to use it in boost-only mode. The output voltage can not go below the input as far as I can tell. From the datasheet, it looks like that's because the auto-buck-boost config requires a few more components, plus a transformer instead of a simple inductor, which is probably the main reason (BOM).
The listing just seems to be ... wrong.
Annoying.
#seller #SellerDescription #YumCha #Chinesium #BuckConverter #BoostConverter #AutoBuckBoost #BuckBoost #electronics #hobby
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Well, this is annoying.
I have some little power #modules (bought on #AliExpress, natch) that were advertised as automatic boost/buck converters. Input from <4V to >30V, output from 1.25V to 35V.
They're based on the XL6009 switching converter, which supports auto-buck-boost as one mode.
But they appear to use it in boost-only mode. The output voltage can not go below the input as far as I can tell. From the datasheet, it looks like that's because the auto-buck-boost config requires a few more components, plus a transformer instead of a simple inductor, which is probably the main reason (BOM).
The listing just seems to be ... wrong.
Annoying.
#seller #SellerDescription #YumCha #Chinesium #BuckConverter #BoostConverter #AutoBuckBoost #BuckBoost #electronics #hobby
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If you buy things on #AliExpress, you are going to get scammed every so often. Their buyer protection program is pretty decent, although it can be a bit of a pain to go through the process.
You can increase your chances of getting scammed by buying things where the #deals are too good to be true. When the deals are ludicrously, impossibly good, your chances increase to 100%.
This can be fun. I have bought a few things over the years that were obviously #scams. Once, I spent a few hundred dollars for two tablets that, if they had been real, were selling for about one tenth of what they should have. Seeing how they faked them being new products, when they were actually recycled ancient low-end tablets, was fascinating.
But I generally won't do that. Instead, I buy cheap stuff, trading a few dollars for the fun of seeing what the seller/manufacturer have done. I don't even try to get my money back on these.
So I recently bought a #USB #charger that I've been seeing for months. It's described as a 240W total output, gallium-nitride, USB-PD and QC-3.0 compatible, five-port charger. The genuine article from a reputable manufacturer, if it exists, must cost over CDN $100. This one was ... five bucks.
So I knew it was going to be interesting. It arrived today. It weighed more than expected, but all at one end. The case appears to be ultrasonically welded, so getting it open is destructive.
1/x
#scam #USBPD #QC3 #Chinesium #fake #TooGoodToBeTrue #deal #deals #GaN
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If you buy things on #AliExpress, you are going to get scammed every so often. Their buyer protection program is pretty decent, although it can be a bit of a pain to go through the process.
You can increase your chances of getting scammed by buying things where the #deals are too good to be true. When the deals are ludicrously, impossibly good, your chances increase to 100%.
This can be fun. I have bought a few things over the years that were obviously #scams. Once, I spent a few hundred dollars for two tablets that, if they had been real, were selling for about one tenth of what they should have. Seeing how they faked them being new products, when they were actually recycled ancient low-end tablets, was fascinating.
But I generally won't do that. Instead, I buy cheap stuff, trading a few dollars for the fun of seeing what the seller/manufacturer have done. I don't even try to get my money back on these.
So I recently bought a #USB #charger that I've been seeing for months. It's described as a 240W total output, gallium-nitride, USB-PD and QC-3.0 compatible, five-port charger. The genuine article from a reputable manufacturer, if it exists, must cost over CDN $100. This one was ... five bucks.
So I knew it was going to be interesting. It arrived today. It weighed more than expected, but all at one end. The case appears to be ultrasonically welded, so getting it open is destructive.
1/x
#scam #USBPD #QC3 #Chinesium #fake #TooGoodToBeTrue #deal #deals #GaN
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Please, I beg you, do not buy pressure vessels from AliExpress sellers. Particularly not ones you strap to your body.
4500 psi COPV tank from some random guy who may have got it out of the "failed safety test" dumpster behind the factory...
#sheesh #Darwin #DarwinAward #cheep #Chinesium #AliExpress #safety #COPV #PressureVessel #certified
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Please, I beg you, do not buy pressure vessels from AliExpress sellers. Particularly not ones you strap to your body.
4500 psi COPV tank from some random guy who may have got it out of the "failed safety test" dumpster behind the factory...
#sheesh #Darwin #DarwinAward #cheep #Chinesium #AliExpress #safety #COPV #PressureVessel #certified
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I bought a #Hangell (no, I wasn't familiar with that name) switching bench power supply and it arrived. It happens to be one that #BigClive just briefly showed in one of his unbagging videos.
I got it because my existing old #linear supplies max out at around 18 V, and that has been a hindrance of late. A #switching supply isn't ideal, because of the possibility of noise, but this model will do 5 A at 60 VDC, and a linear supply that can do a couple of amps at that voltage is big, heavy, and pricey.
So of course, as soon as I received it, I took it apart. As you do.
And ... I'm pleasantly surprised. The #PCB layouts look good, the assembly appears very good, with proper pick&placed #SMT components and reflow soldering, not hack-job hand soldering. The components seem to be #quality, even name-brand where appropriate. There are what appear to be genuine class X and class Y #safety capacitors everywhere they should be. The front binding posts are fairly typical cheap #Chinesium ones, but appear to be from the better end of the quality spectrum as far as those go.
One ding: the multiple #electrolytic output caps appear to be 63 V-rated ones. For a supply that goes up to 60 V, that's just not acceptable. Maybe that's because this unit can also be had in a 30 V model? Or maybe they're just hoping you don't notice.
I'm sorely tempted to replace them with 100 V-rated ones before I use it. I'm going to add some more output #filtering as well.
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I bought a #Hangell (no, I wasn't familiar with that name) switching bench power supply and it arrived. It happens to be one that #BigClive just briefly showed in one of his unbagging videos.
I got it because my existing old #linear supplies max out at around 18 V, and that has been a hindrance of late. A #switching supply isn't ideal, because of the possibility of noise, but this model will do 5 A at 60 VDC, and a linear supply that can do a couple of amps at that voltage is big, heavy, and pricey.
So of course, as soon as I received it, I took it apart. As you do.
And ... I'm pleasantly surprised. The #PCB layouts look good, the assembly appears very good, with proper pick&placed #SMT components and reflow soldering, not hack-job hand soldering. The components seem to be #quality, even name-brand where appropriate. There are what appear to be genuine class X and class Y #safety capacitors everywhere they should be. The front binding posts are fairly typical cheap #Chinesium ones, but appear to be from the better end of the quality spectrum as far as those go.
One ding: the multiple #electrolytic output caps appear to be 63 V-rated ones. For a supply that goes up to 60 V, that's just not acceptable. Maybe that's because this unit can also be had in a 30 V model? Or maybe they're just hoping you don't notice.
I'm sorely tempted to replace them with 100 V-rated ones before I use it. I'm going to add some more output #filtering as well.
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So, Crappy Tire [1] changed their mind and pleaded guilty to a bunch of violations of Quebec's consumer protection law. Surprising absolutely no one, the charges are largely about advertising items at huge discounts from "regular" prices that the products were never or rarely actually sold at.
https://globalnews.ca/news/11657561/que-canadian-tire-fines/
This is why there's a saying that "If you bought it at Canadian Tire and it wasn't at least 40% off, you got ripped off". The Bay / Hudson Bay is also famous for this kind of BS. Other provinces should also forbid this kind of dishonest manipulation, but they don't.
I wish Canadians wouldn't fall for this kind of marketing crap.
Can I tell you a secret that will save you money?
Crappy Tire sells two types of merchandise:
(1) name-brand stuff like Tupperware or Corning or whatever else
(2) crappy imported Chinesium products [2]You can always get the first category cheaper at Walmart or other places.
And you can always get the latter cheaper from Princess Auto, or even cheaper than that from various online places. It all comes out of the same factories.
There is never a reason to shop at Crappy Tire.
[1] Widely-used nickname for "Canadian Tire".
[2] The sheer amount of imported junk gives rise to the alternate nickname "Cambodian Tire".#CrappyTire #CanadianTire #CambodianTire #Chinesium #ripoff #discount #ConsumerProtection
#manipulation #consumer #dishonest #secret #tip #PrincessAuto #AliExpress -
So, Crappy Tire [1] changed their mind and pleaded guilty to a bunch of violations of Quebec's consumer protection law. Surprising absolutely no one, the charges are largely about advertising items at huge discounts from "regular" prices that the products were never or rarely actually sold at.
https://globalnews.ca/news/11657561/que-canadian-tire-fines/
This is why there's a saying that "If you bought it at Canadian Tire and it wasn't at least 40% off, you got ripped off". The Bay / Hudson Bay is also famous for this kind of BS. Other provinces should also forbid this kind of dishonest manipulation, but they don't.
I wish Canadians wouldn't fall for this kind of marketing crap.
Can I tell you a secret that will save you money?
Crappy Tire sells two types of merchandise:
(1) name-brand stuff like Tupperware or Corning or whatever else
(2) crappy imported Chinesium products [2]You can always get the first category cheaper at Walmart or other places.
And you can always get the latter cheaper from Princess Auto, or even cheaper than that from various online places. It all comes out of the same factories.
There is never a reason to shop at Crappy Tire.
[1] Widely-used nickname for "Canadian Tire".
[2] The sheer amount of imported junk gives rise to the alternate nickname "Cambodian Tire".#CrappyTire #CanadianTire #CambodianTire #Chinesium #ripoff #discount #ConsumerProtection
#manipulation #consumer #dishonest #secret #tip #PrincessAuto #AliExpress -
Oh, #AliExpress sellers, never change... 😆
Ordered NE5532 opamps (10 MHz gain-bandwidth product, 9 volts/μs). Put them in my project, wasn't performing correctly. Set up the standard test circuit (gain of 10, non-inverting, output load 800 ohms + 100 pF) and started measuring them...
These things actually have a GBW of only ~520 kHz! And a maximum slew rate of less than 1.3 volts/μs! They're absolute junk!
I don't know what part they remarked to get these. When I first suspected they were fakes, I thought maybe the ancient and cheap NJM4558 (aka 4558D) - but even that should have a 1 MHz bandwidth. Maybe 4558s that failed quality control? 🤣 Anyone have an idea what they might be?
#opamp #remarked #fake #FakeParts #FakeComponents #Chinesium #electronics #hobby #DIY
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Oh, #AliExpress sellers, never change... 😆
Ordered NE5532 opamps (10 MHz gain-bandwidth product, 9 volts/μs). Put them in my project, wasn't performing correctly. Set up the standard test circuit (gain of 10, non-inverting, output load 800 ohms + 100 pF) and started measuring them...
These things actually have a GBW of only ~520 kHz! And a maximum slew rate of less than 1.3 volts/μs! They're absolute junk!
I don't know what part they remarked to get these. When I first suspected they were fakes, I thought maybe the ancient and cheap NJM4558 (aka 4558D) - but even that should have a 1 MHz bandwidth. Maybe 4558s that failed quality control? 🤣 Anyone have an idea what they might be?
#opamp #remarked #fake #FakeParts #FakeComponents #Chinesium #electronics #hobby #DIY
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There's apparently not going to be a Repair Cafe in my town this month. I look forward to them, so this is a slight bummer.
To cheer myself up tonight, I spent half an hour replacing the corroded battery spring contacts in a $2 kitchen timer, and cleaned up some crappy wiring and soldering inside it while I was in there. Felt productive. Yes, I could have replaced it for $2 - but I like the feeling I get from keeping it out of the landfill and fulfilling a useful purpose.
Your city may have a Repair Cafe, too.
#RepairCafe #landfill #dump #repair #garbage #reduce #reuse #recycle #Chinesium
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There's apparently not going to be a Repair Cafe in my town this month. I look forward to them, so this is a slight bummer.
To cheer myself up tonight, I spent half an hour replacing the corroded battery spring contacts in a $2 kitchen timer, and cleaned up some crappy wiring and soldering inside it while I was in there. Felt productive. Yes, I could have replaced it for $2 - but I like the feeling I get from keeping it out of the landfill and fulfilling a useful purpose.
Your city may have a Repair Cafe, too.
#RepairCafe #landfill #dump #repair #garbage #reduce #reuse #recycle #Chinesium
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Princess Auto is basically container-loads of cheap Chinese stuff dumped into a retail environment, with a smattering of other stuff mixed in. Some of it is junk, a lot of it is serviceable if not great, and there are a few gems mixed in here and there. A lot of it will be the same junk sold for three times the price at Cambodian Tire (marked up 5x, but permanently "40% off!", of course).
Weird tool you'll need once or twice? It's a good place to get it. Inexpensive hydraulic stuff, or a cheap small engine, or blasting beads, or brake cleaner? Sure. Hand tools you'll use all the time? Buy very carefully, and probably from their "ProPoint" "premium" line, not the regular "PowerFist" [1] stuff.
[1] Honest, this is their house brand, I swear.
#PrincessAuto #PowerFist #ProPoint #Chinesium #cheap #YumCha
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Princess Auto is basically container-loads of cheap Chinese stuff dumped into a retail environment, with a smattering of other stuff mixed in. Some of it is junk, a lot of it is serviceable if not great, and there are a few gems mixed in here and there. A lot of it will be the same junk sold for three times the price at Cambodian Tire (marked up 5x, but permanently "40% off!", of course).
Weird tool you'll need once or twice? It's a good place to get it. Inexpensive hydraulic stuff, or a cheap small engine, or blasting beads, or brake cleaner? Sure. Hand tools you'll use all the time? Buy very carefully, and probably from their "ProPoint" "premium" line, not the regular "PowerFist" [1] stuff.
[1] Honest, this is their house brand, I swear.
#PrincessAuto #PowerFist #ProPoint #Chinesium #cheap #YumCha
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Wow, these #AliExpress sellers are pretty ingenious! These 304 stainless set screws are *much* easier to pick up with a magnet than with sausage fingers.
#Chinesium #SetScrew #GrubScrew #304Stainless #StainlessSteel #fake #Qwality #magic
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Wow, these #AliExpress sellers are pretty ingenious! These 304 stainless set screws are *much* easier to pick up with a magnet than with sausage fingers.
#Chinesium #SetScrew #GrubScrew #304Stainless #StainlessSteel #fake #Qwality #magic
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Hand tools vent. Maybe this will save someone some grief and #expense if they find it with a search.
Wiha - great drivers & bits. Love 'em. Well-machined, good tough tool #steel.
But their needlenose pliers? Rubbish. I have a set of full-sized needlenose, plus their "micro" set. With both of them there's too much slop in the joint, so the jaws are never quite aligned. I don't recall if they were bad right out of the packaging, but I certainly noticed it within the first handful of usages. I have the full sized "standard" / linesman-type pliers as well, but you don't tend to notice slop because of the much shorter jaws.
Wiha's micro-needlenose pliers are no better than - or even noticeably worse than - #cheap #Chinesium ones I have.
Save your money.
#vent #venting #HandTools #review #drivers #DriverBits #pliers #needlenose #Wiha #junk #ExpensiveJunk #JointPlay #joint #play
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Hand tools vent. Maybe this will save someone some grief and #expense if they find it with a search.
Wiha - great drivers & bits. Love 'em. Well-machined, good tough tool #steel.
But their needlenose pliers? Rubbish. I have a set of full-sized needlenose, plus their "micro" set. With both of them there's too much slop in the joint, so the jaws are never quite aligned. I don't recall if they were bad right out of the packaging, but I certainly noticed it within the first handful of usages. I have the full sized "standard" / linesman-type pliers as well, but you don't tend to notice slop because of the much shorter jaws.
Wiha's micro-needlenose pliers are no better than - or even noticeably worse than - #cheap #Chinesium ones I have.
Save your money.
#vent #venting #HandTools #review #drivers #DriverBits #pliers #needlenose #Wiha #junk #ExpensiveJunk #JointPlay #joint #play
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"The forged certification marks that are different on each part in the component series is your trusted sign of Qwality."
#qwality #certification #forged #certificate #Chinesium #SafetyThird #electronic #component #AliExpress
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"The forged certification marks that are different on each part in the component series is your trusted sign of Qwality."
#qwality #certification #forged #certificate #Chinesium #SafetyThird #electronic #component #AliExpress
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Čia juokinga, nes telefonas neturi ausinių lizdo.
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Čia juokinga, nes telefonas neturi ausinių lizdo.
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Interestingly, this works, but will drain the battery within an hour...
Also, the converter is only converting down, so no 15V or 20V output when the input is 12V.
Oh, and 140W by port is obviously nonsense...
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I went ahead and ordered a cheap replacement battery for that old DELL LATITUDE C610 laptop I recently installed. I hope this won't explode in my face at some point. 😉
#RetroComputing #DELL #ChinaTech #Chinesium #Battery #RetroGaming #90s
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Measuring the characteristics of some cheap J113 / 2SJ113 n-channel JFETs I bought, so I can match them / divvy them into bins.
Put #15 of 20 into the JFET test circuit, and the power supply's current limiter kicks in ... whoops. Did I have it turned around so I swapped the terminals? Nope...
Take a peek at it. Slightly different marking. Still "J113", but the factory/date code is different. Put it in the component tester... it's a PNP BJT transistor, not a JFET at all, and with a pinout completely unsuitable for the JFET test circuit. If it had been in for more than a second, it probably would have let the Magic Smoke out.
Oh, #AliExpress sellers, where would #hobbyist #electronics people be without you? Somewhere with less excitement in their lives, I guess.
#MagicSmoke #Chinesium #fake #remarked #component #transistor #JFET #BJT #J113 #hobby
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Measuring the characteristics of some cheap J113 / 2SJ113 n-channel JFETs I bought, so I can match them / divvy them into bins.
Put #15 of 20 into the JFET test circuit, and the power supply's current limiter kicks in ... whoops. Did I have it turned around so I swapped the terminals? Nope...
Take a peek at it. Slightly different marking. Still "J113", but the factory/date code is different. Put it in the component tester... it's a PNP BJT transistor, not a JFET at all, and with a pinout completely unsuitable for the JFET test circuit. If it had been in for more than a second, it probably would have let the Magic Smoke out.
Oh, #AliExpress sellers, where would #hobbyist #electronics people be without you? Somewhere with less excitement in their lives, I guess.
#MagicSmoke #Chinesium #fake #remarked #component #transistor #JFET #BJT #J113 #hobby
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"Cow tools but from people"
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"Cow tools but from people"
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USB tester / power meter: "up to 50V 12A"
Uh, sure, #AliExpress seller. USB does 600W now.
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USB tester / power meter: "up to 50V 12A"
Uh, sure, #AliExpress seller. USB does 600W now.
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"bluetooth music tesla coil"
Hm. Not sure how good the BlueTooth reception is gonna be when the tesla coil is in operation... 😆
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"bluetooth music tesla coil"
Hm. Not sure how good the BlueTooth reception is gonna be when the tesla coil is in operation... 😆
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Yup, me too. The other bit is that if you do go out and buy the new one instead, chances are it's not made anywhere near as good as the old one.
I bought one piece of new equipment 2 or 3 years ago (a shredder/mulcher), and the rated lifetime on its no-name Chinesium engine is ... 100 hours. Granted you only use it a few hours a year, but no manufacturer would have shipped such a piece of junk 30 years ago.
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Yup, me too. The other bit is that if you do go out and buy the new one instead, chances are it's not made anywhere near as good as the old one.
I bought one piece of new equipment 2 or 3 years ago (a shredder/mulcher), and the rated lifetime on its no-name Chinesium engine is ... 100 hours. Granted you only use it a few hours a year, but no manufacturer would have shipped such a piece of junk 30 years ago.
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Electronic component scams: some companies are remarkably open about it.
If you buy components on AliExpress or similar online markets, you're probably already familiar with getting faux goods. If you're lucky, it's a clone of the actual part you wanted (transistor, opamp, whatever) with similar specs. If you're less lucky, you get a part that's the same general type, but not the one you wanted - order a transistor with particular characteristics, but receive another transistor type entirely, that doesn't work the same way.
And of course, if you're truly unlucky or you buy the cheapest listing you can find, you get a package with a completely random bit of silicon in it (order a JFET or MOSFET, receive a BJT, possibly with a different pinout...) or even a package with no actual electronics in it (receive a DIP package with proper leads on it, but cut it open and the leads aren't connected to anything, and there's no silicon die in it at all).
I happened to see this listing on AliBaba, the wholesale / manufacturer site related to AliExpress:
https://www.alibaba.com/product-detail/Screen-printing-TDA7729-TSSOP-28-Audio_1601262782430.htmlIf I read it right, they're offering to sell you a cloned part, but they'll silkscreen whatever fake info you want onto the package, so you can sell it as a genuine name-brand part. Or maybe they're offering to remark any component you want, who knows - I'm not going to contact them to find out.
Pretty brazen.
#electronics #hobby #AliExpress #fake #Chinesium #remarked #counterfeit #scam #silicon #component
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Electronic component scams: some companies are remarkably open about it.
If you buy components on AliExpress or similar online markets, you're probably already familiar with getting faux goods. If you're lucky, it's a clone of the actual part you wanted (transistor, opamp, whatever) with similar specs. If you're less lucky, you get a part that's the same general type, but not the one you wanted - order a transistor with particular characteristics, but receive another transistor type entirely, that doesn't work the same way.
And of course, if you're truly unlucky or you buy the cheapest listing you can find, you get a package with a completely random bit of silicon in it (order a JFET or MOSFET, receive a BJT, possibly with a different pinout...) or even a package with no actual electronics in it (receive a DIP package with proper leads on it, but cut it open and the leads aren't connected to anything, and there's no silicon die in it at all).
I happened to see this listing on AliBaba, the wholesale / manufacturer site related to AliExpress:
https://www.alibaba.com/product-detail/Screen-printing-TDA7729-TSSOP-28-Audio_1601262782430.htmlIf I read it right, they're offering to sell you a cloned part, but they'll silkscreen whatever fake info you want onto the package, so you can sell it as a genuine name-brand part. Or maybe they're offering to remark any component you want, who knows - I'm not going to contact them to find out.
Pretty brazen.
#electronics #hobby #AliExpress #fake #Chinesium #remarked #counterfeit #scam #silicon #component
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Random #AliExpress finding...
So today I discovered why I was getting weird results in a circuit I was testing the other day. It turns out that some of the 1N60P germanium diodes I have are fakes. They appear to be just a plain silicon diode with a forward voltage of ~0.6V, rather than the actual article's ~0.25V.
They're in the right DO-35 glass package and they've been marked as 1N60P, so someone's gone to the trouble of faking it well - but I can't see why. It can't possibly be that profitable to buy genuine silicon diodes, remark them, and then sell them for just a few pennies extra, can it?
It's not like the sellers that remark a ten-cent opamp as a $10 part - I can see how that's profitable.
Weird.
#electronics #fake #scam #germanium #silicon #diode #DO35 #1N60P #Ge #Si #SiGe #Chinesium
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Random #AliExpress finding...
So today I discovered why I was getting weird results in a circuit I was testing the other day. It turns out that some of the 1N60P germanium diodes I have are fakes. They appear to be just a plain silicon diode with a forward voltage of ~0.6V, rather than the actual article's ~0.25V.
They're in the right DO-35 glass package and they've been marked as 1N60P, so someone's gone to the trouble of faking it well - but I can't see why. It can't possibly be that profitable to buy genuine silicon diodes, remark them, and then sell them for just a few pennies extra, can it?
It's not like the sellers that remark a ten-cent opamp as a $10 part - I can see how that's profitable.
Weird.
#electronics #fake #scam #germanium #silicon #diode #DO35 #1N60P #Ge #Si #SiGe #Chinesium
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"This is a trustworthy company", company says on its photos-of-our-office display beneath its product listings.
The photos are very clearly renders - including The Sims-like not-remotely-actually-human-at-all workers standing in weird stiff poses - and then the company logo has been badly added to the reception desk and wall later with image-editing software, not even included in the original render.
So stock non-photo render of an office that doesn't exist, populated with people that don't exist, for a company that might be one guy working nude in a garden shed.
"Trustworthy company" 😉
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"This is a trustworthy company", company says on its photos-of-our-office display beneath its product listings.
The photos are very clearly renders - including The Sims-like not-remotely-actually-human-at-all workers standing in weird stiff poses - and then the company logo has been badly added to the reception desk and wall later with image-editing software, not even included in the original render.
So stock non-photo render of an office that doesn't exist, populated with people that don't exist, for a company that might be one guy working nude in a garden shed.
"Trustworthy company" 😉
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A Tale of Two Shitties... [1]
I've always done my own seasonal tire changes on my vehicle and my partner's as well. When I first started many years ago, I bought a cheapie 2-ton trolley #jack from Princess Auto - USAnians can substitute "Harbor Freight" and the story will be essentially the same.
But I replaced my vehicle a year and a half ago. The new one rides a little higher off the ground, and has the massive #wheels and #tires that have become the de facto standard, and my old jack didn't lift high enough to change the wheels on the new vehicle. Being the better part of 20 years newer, the new vehicle is also a lot heavier.
So I bought a larger 3-ton trolley jack, with a higher lift height. It's even a real name brand, #Torin. [2]
So anyways... I went to take the snow tires off on the weekend, and the new jack had #leaked, and won't lift properly. So it's sprung an o-ring or other #seal, after only using it 3 times (I think). The 20-year-old Princess Auto special is still fine. They sit next to each other in the garage, so it's not storage conditions.
Winner: Princess Auto.
Then, while changing tires, one lug #nut was #seized. Got out a decent sized breaker bar, and a 1/2" to 3/8" socket drive adapter from Princess Auto - their "pro" "Pro Point" line, yet - put my back into it, and #sheared the damn adapter off.
[1] Couldn't resist, sorry. [3]
[2] I didn't say it was a great name brand.
[3] Not sorry. -
A Tale of Two Shitties... [1]
I've always done my own seasonal tire changes on my vehicle and my partner's as well. When I first started many years ago, I bought a cheapie 2-ton trolley #jack from Princess Auto - USAnians can substitute "Harbor Freight" and the story will be essentially the same.
But I replaced my vehicle a year and a half ago. The new one rides a little higher off the ground, and has the massive #wheels and #tires that have become the de facto standard, and my old jack didn't lift high enough to change the wheels on the new vehicle. Being the better part of 20 years newer, the new vehicle is also a lot heavier.
So I bought a larger 3-ton trolley jack, with a higher lift height. It's even a real name brand, #Torin. [2]
So anyways... I went to take the snow tires off on the weekend, and the new jack had #leaked, and won't lift properly. So it's sprung an o-ring or other #seal, after only using it 3 times (I think). The 20-year-old Princess Auto special is still fine. They sit next to each other in the garage, so it's not storage conditions.
Winner: Princess Auto.
Then, while changing tires, one lug #nut was #seized. Got out a decent sized breaker bar, and a 1/2" to 3/8" socket drive adapter from Princess Auto - their "pro" "Pro Point" line, yet - put my back into it, and #sheared the damn adapter off.
[1] Couldn't resist, sorry. [3]
[2] I didn't say it was a great name brand.
[3] Not sorry. -
Line manager: Uh, Boss?
Boss: Yes?
L: We finished that new run of the component. We sent it to QA.
B: Okay? Is there a problem?
L: I just got the report back. This batch, uh, didn't meet the tolerance goal.
B: [rubs temple] Okay, shit happens. I guess it goes out as 10%. That's not too bad a hit.
L: Uh, it didn't meet 10% tolerance, either.
B: What? How bad is it? 20%?
L: Uh...
B: It's *worse* than 20%?
L: Most of the parts are barely within 50% tolerance.
B: ...
L: So, uh, we should probably ...
B: Who was running the line?
L: ...
B: It was Chuck, wasn't it?
L: ... yes.
B: Was he drunk again?
L: I don't know. I sent him home.
B: Nobody's made these components in 50% tolerance for thirty years. Where am I going to sell them?
L: ...
B: Okay, AliExpress it is. Go to the noodle shop across the street and offer him some new boxes if we can have the ones his supplies come in. No way I'm putting these parts and the company name in the same room together.
(inspired by some parts I received today...)
#electronics #hobby #AliExpress #tolerance #components #ShortFiction #qwality #ShipIt #scene #business #Chinesium #YumCha
-
Line manager: Uh, Boss?
Boss: Yes?
L: We finished that new run of the component. We sent it to QA.
B: Okay? Is there a problem?
L: I just got the report back. This batch, uh, didn't meet the tolerance goal.
B: [rubs temple] Okay, shit happens. I guess it goes out as 10%. That's not too bad a hit.
L: Uh, it didn't meet 10% tolerance, either.
B: What? How bad is it? 20%?
L: Uh...
B: It's *worse* than 20%?
L: Most of the parts are barely within 50% tolerance.
B: ...
L: So, uh, we should probably ...
B: Who was running the line?
L: ...
B: It was Chuck, wasn't it?
L: ... yes.
B: Was he drunk again?
L: I don't know. I sent him home.
B: Nobody's made these components in 50% tolerance for thirty years. Where am I going to sell them?
L: ...
B: Okay, AliExpress it is. Go to the noodle shop across the street and offer him some new boxes if we can have the ones his supplies come in. No way I'm putting these parts and the company name in the same room together.
(inspired by some parts I received today...)
#electronics #hobby #AliExpress #tolerance #components #ShortFiction #qwality #ShipIt #scene #business #Chinesium #YumCha
-
When building electronics project for permanent use - i.e. after testing on a solderless breadboard - you normally go to a #soldered perforated board of some type as a #prototype, or even for very-low-volume production.
There are different types of boards. I dislike "matrix" boards, which are just isolated pads on a grid, i.e. there are no connections between any of them. Some people swear by these; I swear at them.
I prefer protoboards that have multiple holes per pad (so you can connect multiple component leads without having to add an explicit wire jumper). If they've also got #busses - sets of pads that run the whole length or width of the board - so much the better!
Some are #crap: laminated paper PCBs where the pads lift off the board if you even try to desolder something you added. Row/column labels missing, or (like I found with some recently) that don't line up between the front and back of the board 😆 , or most egregiously, they don't actually show the pad pattern on the front of the board, so you have to keep flipping it to check your parts are correctly placed. One example below.
I have some from "BusBoard Prototype Systems" that I like. The SB4 is a 38 x 24 (912 hole) board that is #snappable into quarters. Two of the quarters have rows that are 4-hole, 2-hole, 4-hole. The other two are 5 2-hole pads. Both types have a single bus running along each of the 2 long sides.
But ...
1/x
#electronics #hobby #ProtoBoard #PerfBoard #MatrixBoard #Chinesium