Author Topic: EEVblog 1444 - XMAS Mailbag  (Read 4479 times)

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Offline EEVblogTopic starter

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EEVblog 1444 - XMAS Mailbag
« on: December 14, 2021, 01:00:58 pm »
XMAS Mailbag featuring Mrs EEVblog, Sagan, and Huxley!



Badge https://bit.ly/3m3t4Yj
RF Antenna
DigitalCool PCB Coaster: https://www.tindie.com/stores/digitalcool/
Neon photos from a future Indian EE
Casio OH-7000G overhead projector calculator
Trevor's Bench https://www.youtube.com/c/TrevorsBench
Circuit Mess Nibble STEM kit: https://circuitmess.com/nibble/
kWh meter
Spotty solder paste dispenser: https://avdweb.nl/tech-tips/pcb/solder-paste-dispenser
1980's Appliance control from your phone
Curz Scanner: https://shop.czur.com/products/et16plus?variant=39593283289136
Coupon code: CZURDAVE
 
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Offline SeanB

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Re: EEVblog 1444 - XMAS Mailbag
« Reply #1 on: December 14, 2021, 02:45:59 pm »
If you want to read the magazine, without the old magazine smell and feel

https://worldradiohistory.com/Archive-Poptronics/60s/61/Pop-1961-11.pdf

 

Offline tchicago

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Re: EEVblog 1444 - XMAS Mailbag
« Reply #2 on: December 14, 2021, 03:32:23 pm »
Hi, Dave, Merry Christmas! (although, the XMAS is a religious thing and me being atheist, I enjoy it big time nevertheless)

Could you please take a closer look at this document scanner thingy to see if the bottom base can be separated and re-mounted for easier travelling with this device?
« Last Edit: December 14, 2021, 03:39:11 pm by tchicago »
 

Offline Unixon

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Re: EEVblog 1444 - XMAS Mailbag
« Reply #3 on: December 14, 2021, 09:38:59 pm »
Dave, I think you've seen these antenna shapes before!
First one on 32:08 is just a couple of ducks and the next one is a couple of dolphins.
Someone at NetGear had way too much fun :-DD
« Last Edit: December 15, 2021, 12:16:10 am by Unixon »
 

Offline DIYDan

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Re: EEVblog 1444 - XMAS Mailbag
« Reply #4 on: December 14, 2021, 11:25:41 pm »
I thought you'd find the Animal Immobilizer quite interesting :(



It's basically a 12V DC to 10V AC converter (not sure exactly how it works?). It's not used to electrocute an animal. The low power AC interferes with the electrical brain to muscle signal, temporarily and harmlessly paralyzing the animal.
“You know, farming looks mighty easy when your plow is a pencil, and you’re a thousand miles from the corn field.” – Dwight D. Eisenhower
 
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Offline EEVblogTopic starter

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Re: EEVblog 1444 - XMAS Mailbag
« Reply #5 on: December 15, 2021, 06:52:58 am »
Could you please take a closer look at this document scanner thingy to see if the bottom base can be separated and re-mounted for easier travelling with this device?

Nope, you'd have to dissasemble the whole thing.
 

Offline thm_w

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Re: EEVblog 1444 - XMAS Mailbag
« Reply #6 on: December 16, 2021, 10:36:30 pm »
Those 3 optics on the side are horizontal IR lasers (I assume, since it was never visible).
"CZUR’s Proprietary “Book Curve Flattening” technology utilizes three precise laser lines for incredible scanning accuracy and image clarity."
Profile -> Modify profile -> Look and Layout ->  Don't show users' signatures
 

Offline TassiloH

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Re: EEVblog 1444 - XMAS Mailbag
« Reply #7 on: December 17, 2021, 05:54:50 pm »
The 3 optics on the side are actually RED lasers. You don't see them on screen because the screen image is not being updated while the lasers are on, but they are very visible when using that thing. As they are red, the whole flattening does not work that well on magazines with red print (text boxes, advertisements and so on). The funny thing is, one can manually edit the flattening curvature in the software. It then presents the image taken with the laser lines, so that one can move the flattening curve (essentially splines with 10 movable points or so). And it is easy to recognize the laser lines on these images even on red background. So the whole "AI" recognizing the lines is not that intelligent. It seems to just look for a bright red line, but on red background it is overexposed and more like a white line on red background and the "AI" fails.
When scanning glossy magazines, glare is an issue. For me, it worked best with all ceiling lights off, the top light in the scanner off, just using the additional lamp that is attached with magnets. Oh, and direct sunlight from a window is an issue of course unless there is really no shadow in the scanning area. So I used it on cloudy days only. It is still faster and less annoying than scanning a bunch of magazines for documentation/archival purposes on a regular scanner. If you are willing to cut the objects being scanned into single sheets, a regular scanner with ADF would be the preferred option.
« Last Edit: December 17, 2021, 06:02:33 pm by TassiloH »
 
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Offline Fungus

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Re: EEVblog 1444 - XMAS Mailbag
« Reply #8 on: December 25, 2021, 02:15:06 pm »
It's basically a 12V DC to 10V AC converter (not sure exactly how it works?). It's not used to electrocute an animal. The low power AC interferes with the electrical brain to muscle signal, temporarily and harmlessly paralyzing the animal.

Can't wait for the teardown and demonstration.  :popcorn:
 

Offline Fungus

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Re: EEVblog 1444 - XMAS Mailbag
« Reply #9 on: December 25, 2021, 03:05:00 pm »
The electronic analogy quiz has got me a bit stumped...

 


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