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 […]
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 […]
Partial screenshot of an AliExpress product listing, showing an item "LIGHTWEIGHT 4500Psi 300Bar 30Mpa 0.3L 300cc Carbon Fiber Cylinder High Pressure Tank HPPA Cylinder for Diving Scuba M18*1.5", for the low, low price of C$179.68. Buying a safety-critical item like this from an unregulated, overseas marketplace is an exceedingly dangerous and stupid thing to do.
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 […]
[Original post on mindly.social]
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 […]
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 were never or rarely sold at those prices […]
I've done some more digging on the #chinesium capactive hats for whip antennas, do they bring any benefit for #80m operations? www.youtube.com/watch?v=P0n-... #hamradio #hamtube
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
"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
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 […]
Product photo of a "multifunctional fork knife spoon ..." and 17 other functions device from a random seller on AliExpress. It has a bizarre lumpy shape, reminding me of the classic Far Side comic "Cow Tools".
"Cow tools but from people"
#CowTools #FarSide #Chinesium
USB tester / power meter: "up to 50V 12A"
Uh, sure, #AliExpress seller. USB does 600W now.
#fake #scam #Chinesium #BadSeller
Glück im Unglück.
#chinesium
"bluetooth music tesla coil"
Hm. Not sure how good the BlueTooth reception is gonna be when the tesla coil is in operation... 😆
#AliExpress #Chinesium #marketing
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 […]
"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 […]
#Chinesium
Wie immer gilt, billig gekauft ist eben #Müll
A scan of a small electronics breadboard, which you solder components and wires to to prototype a circuit after initial experimentation but before production. There is a brand name printed on the top of the board that reads "Radio Shaek".
Well, it's not like Tandy was doing anything useful with that trademark...
#electronics #breadboard #Tandy #RadioShack #Sorny #Sayno #knockoff #Chinesium
There's an old Alabaman saying: "Thank god for Mississippi," meaning no matter how poorly Alabama is measured, Mississippi will always be worse.
In that vein, the people of #CHINA, makers of #CHINESIUM and all-things-that-break, have become fond of #RUSSIAN goods of even poorer quality.
I think I found out why these proto boards were so cheap...
The row and column labels on the top side don't actually match the ones on the bottom side. Column "L" on the top is "N" on the bottom...
#PCB #ProtoBoard #prototype #board #solder #electronics #cheap #chinesium
So, when you buy a bag of metric 304 stainless hex nuts, and each nut is attracted to a magnet by a different amount of force, that's a sign of quality, right? 😂
#quality #qwality #chinesium #M3 #nut #HexNut #stainless #304Stainless #ferrous #magnetic
Was randomly scrolling through one of the sites that serve as middlemen between #western #buyers and random #sketchy sellers of questionable #Chinesium stuff.
Please, for the love of all that is holy, do NOT buy boilers, pressure-cookers, compressed-gas tanks, or any other pressure vessel from […]
