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?

#Scammy #scam #scams...

#opamp #remarked #fake #FakeParts #FakeComponents #Chinesium #electronics #hobby #DIY

Yeah, #scammy shit like this is why #ConsumerProtection routinely smachs #TEMU in the #EU and espechally #Germany.

• Not shure if they tried these #BaitAndSwitch #pricing tactics in Germany too but then again I didn't check with @Bundesverband 's website.

Subject: complaint about cargo-culting audiophools and the #marketers that exploit them

I saw a new #scam yesterday. Well, new to me. It's probably been around forever.

There are many, many #fraudulent products and ideas out there that target the self-described "audiophiles". And because such #audiophools never do double-blind tests, they always convince themselves of just how well the #scammy products work ("you are the easiest person for you to fool").

Examples of long standing:

Super-thick "oxygen-free copper" #cables for #speakers or #interconnects, being sold at 100x the price of regular cables.

Electrically shielded fiber-optic cables (!).

Paint pens to colour in the outer edge of CDs and DVDs.

Systems to run your equipment from #batteries so as not to contaminate them with that dirty mains #AC.

#Tubes / #valves instead of solid-state #amplification.

... and on and on.

Well, yesterday I was looking for some opamps (tiny little chips, used everywhere), and came across a place selling replacement #opamps for use inside stereo equipment. You can get perfectly good designed-for-audio opamps of good quality for a few bucks each. Upgrading your equipment to better opamps sometimes made sense in the 1970s, but not now. The ones used from the factory are fine.

But no, this one was selling fancy opamps, designed for *RF* use, not audio, which normally cost $10-20 each, in fancy little metal packages, for hundreds of dollars apiece.

"A fool and his money ..."

email from some dot-com #Viberate with a #scammy tracker link to "the page created for you!" — the text over the link spelled a url, copy/paste to firefox, and there it is, a really vague summary description of us on a public page, with a blurry banner that could be us who knows, and a feature photo of different band! (albeit closely related)

Email explains "a fan" submitted our details, I'm guessing the 'fan' was AI, as was the researcher; they want $2/mo, no mention how much to take it down.

Spectrum is sending out default messages declining to provide credits for the massive Los Angeles outage on Friday.

Don't let them steal from you, reach out and get what you deserve.

#Spectrum #Outage #LosAngeles #Scummy #Scammy #ISP #Internet

Recently I was adjusting my son’s parental control on his tablet, and thought ya know I guess I really should just allow my iCloud.com email (that I don’t really use) to make me more findable for messsages and FaceTime.

Not even 47 hours later I r had four scams texted to me and randomly added to some crazy group. Uh no. We’l just leave that stupid thing turned off now. Yikes.

#iCloud #iMessage #scammy #INeedAShower #silkwood #Apple