Author Topic: Stock Electronic Image FAILS (Read 281657 times)

xrunner · « **Reply #800 on:** December 18, 2022, 10:39:43 pm »

Interesting soldering iron they use in step 2 to demonstrate their solder wick. I'm trying to locate that iron on Amazon.

Whales · « **Reply #801 on:** December 18, 2022, 11:29:55 pm »

I'm more curious about how the wick went black. It looks like brush bristles.

xrunner · « **Reply #802 on:** December 19, 2022, 01:21:21 am »

Hey it's a wood color portable soldering iron! It belongs in this thread!

helius · « **Reply #803 on:** December 21, 2022, 03:24:36 am »

WTF?
Is this supposed to be a practical joke on Gramps for when he drops his glasses and squints to pick up his meerschaum pipe?

ebastler · « **Reply #804 on:** December 21, 2022, 07:03:50 am »

Quote from: helius on December 21, 2022, 03:24:36 am

WTF?
Is this supposed to be a practical joke on Gramps for when he drops his glasses and squints to pick up his meerschaum pipe?

Yes, you are pretty close there. An image search reveals that this thing is mainly sold as a heater for vaping, so it is indeed meant to look like a pipe.

No idea who came up with the brilliant concept of selling it as the world's most un-ergonomic soldering iron -- without the soldering tip, mind you... Maybe that makes it legal to import and sell in parts of the world where a vaping device can't be sold, or would need to undergo some certification process?

NiHaoMike · « **Reply #805 on:** January 01, 2023, 04:59:23 am »

Looked up some datasheets for some speakers I had lying around. Wonder how many returns they got from users trying to use the "series" configuration.

AndyBeez · « **Reply #806 on:** January 10, 2023, 09:45:26 am »

Adults only

xrunner · « **Reply #807 on:** January 10, 2023, 12:18:05 pm »

More convenient to measure if your DMM works even when switched off AND not even touching the test points ...

Ian.M · « **Reply #808 on:** January 10, 2023, 12:27:44 pm »

Ah, the hateful printed display protector film. The only *good* printing on a display protector is "peel here" or "peel before use" in one corner!

If your marketing people try to convince you a printed display protector film is a good idea, sack them!

McBryce · « **Reply #809 on:** January 10, 2023, 12:54:54 pm »

Quote from: xrunner on January 10, 2023, 12:18:05 pm

More convenient to measure if your DMM works even when switched off AND not even touching the test points ...

That's not going to be good for the battery life.

McBryce.

PA0PBZ · « **Reply #810 on:** January 10, 2023, 01:15:31 pm »

Or the RMS calculation

ebastler · « **Reply #811 on:** January 10, 2023, 03:48:52 pm »

Quote from: PA0PBZ on January 10, 2023, 01:15:31 pm

Or the RMS calculation

What's wrong with the RMS value? For a waveform which looks a tad more pointed (triangular) than a pure sine, it seems quite plausible at a tad less than Vpeak/sqrt(2)?

fourfathom · « **Reply #812 on:** January 10, 2023, 04:27:55 pm »

I hate it when my 9V battery does this!

AVGresponding · « **Reply #813 on:** January 10, 2023, 05:54:51 pm »

Quote from: fourfathom on January 10, 2023, 04:27:55 pm

I hate it when my 9V battery does this!

You've never seen the AC version of the PP3 before..?

fourfathom · « **Reply #814 on:** January 10, 2023, 06:31:55 pm »

Quote from: AVGresponding on January 10, 2023, 05:54:51 pm

Quote from: fourfathom on January 10, 2023, 04:27:55 pm
I hate it when my 9V battery does this!

You've never seen the AC version of the PP3 before..?

Darn! I should have checked the battery label before I bought it. I had just assumed it was the standard DC variety!

PA0PBZ · « **Reply #815 on:** January 10, 2023, 08:22:29 pm »

Quote from: ebastler on January 10, 2023, 03:48:52 pm

What's wrong with the RMS value? For a waveform which looks a tad more pointed (triangular) than a pure sine, it seems quite plausible at a tad less than Vpeak/sqrt(2)?

Vpeak/sqrt(2) is not even close to 0.34? Or maybe I need my eyes checked...

ebastler · « **Reply #816 on:** January 10, 2023, 09:05:06 pm »

Quote from: PA0PBZ on January 10, 2023, 08:22:29 pm

Vpeak/sqrt(2) is not even close to 0.34? Or maybe I need my eyes checked...

Maybe?

Vpp = 2 * Vpeak

(Whether it's a brilliant idea to state Vpp on the screen, rather than Vpeak, is another matter...)

Fungus · « **Reply #817 on:** January 10, 2023, 10:50:03 pm »

Quote from: fourfathom on January 10, 2023, 04:27:55 pm

I hate it when my 9V battery does this!

That's just ripple on one of those rechargeable/boosted batteries.

Maybe.

AndyBeez · « **Reply #818 on:** January 11, 2023, 09:59:23 am »

Quote from: fourfathom on January 10, 2023, 04:27:55 pm

I hate it when my 9V battery does this!

Common Mode Rejection ratio = zero

Should have got the EEVblog one

PA0PBZ · « **Reply #819 on:** January 11, 2023, 10:47:37 am »

Quote from: ebastler on January 10, 2023, 09:05:06 pm

Maybe? Vpp = 2 * Vpeak

You are correct of course, Vpp <> Vpeak. Shopping for new glasses now

xrunner · « **Reply #820 on:** January 11, 2023, 11:41:28 pm »

This "Portable Mini Cordless Soldering Iron Pen" works so good the person used in the demo shot would rather use an electric one instead.

VK3DRB · « **Reply #821 on:** January 12, 2023, 05:22:13 am »

Quote from: Ian.M on January 10, 2023, 12:27:44 pm

Ah, the hateful printed display protector film. The only *good* printing on a display protector is "peel here" or "peel before use" in one corner!

If your marketing people try to convince you a printed display protector film is a good idea, sack them!

I used to fix TV's and VCR's as a side business 40 years ago. For some strange reason many consumers left the protective film often with with the garbage marketing material on the flap or on the front panel of their VCR. I suspected the numbskulls thought it help its resale vale. But people leave protective film on all sorts of things - recently left on a touch screen on an audio mixer. Most people leave the energy efficiency label on their fridge. What for?! The first thing I do is remove them. I have a phobia of these things being left on. The adhesive dries and eventually its a pain in the arse to remove them.

I also noticed most people who paid big bucks for stereo HiFi VCRs, only played the audio through their TV set. In Austrlaia, they paid extra big money for VHS over Beta (when they were neck-and-neck in the market) because the uneducated consumer thought VHS was better quality because they cost more, and I think there was some saving face involved. The fact was, Beta was far more reliable due to a simpler transport mechanism, had a slightly better horizontal resolution, and had a smaller tape. VHS was crap. I owned Beta.

xrunner · « **Reply #822 on:** January 12, 2023, 12:38:22 pm »

xrunner · « **Reply #823 on:** January 13, 2023, 10:17:50 pm »

Here we have some new technology claims - AC coin cells and DC power distribution.

xrunner · « **Reply #824 on:** January 15, 2023, 01:28:58 am »

Hmmm ... I don't think it would be very romantic to use a light. However, in certain situations it could be useful I suppose.


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Author Topic: Stock Electronic Image FAILS (Read 281657 times)

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