Another movie length Mailbag.
What have people sent in this week?
Forum: http://www.eevblog.com/forum/blog/eevblog-735-mailbag/'>http://www.eevblog.com/forum/blog/eevblog-735-mailbag/
SPOILERS:
Why are cheap Ebay LED light bulbs so bad? Dave investigates why some of them are doomed to fail. DaveCAD and thermal camera time.
http://www.qt-brightek.com/datasheet/QBLP679E-IWK-XX.pdf
CPM700 Countersurveillance unit from Research Electronics Inc for cold war spy bug sweeping.
Cheap Ebay voltage sources for multimeter calibration
Raspberry Pi I/O Hat Kickstarter, the Hatilogico:
https://www.kickstarter.com/projects/jelby/hatalogico-for-the-raspberry-pi
Industrial RS232 modem teardown
Bricked Assus TF300 Transformer Tablet
Annoy-a-tron
Belkin router teardown
Cypress Parachute Automatic Activation Device.
Previous video teardown on this: https://www.youtube.com/watch?v=9-wzPTiLz5c
EEVblog Main Web Site: http://www.eevblog.com
The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2
Support the EEVblog through Patreon!
http://www.patreon.com/eevblog
EEVblog Amazon Store (Dave gets a cut):
http://astore.amazon.com/eevblogstore-20
Donations:
http://www.eevblog.com/donations/
Projects:
http://www.eevblog.com/projects/
Electronics Info Wiki:
http://www.eevblog.com/wiki/
What have people sent in this week?
Forum: http://www.eevblog.com/forum/blog/eevblog-735-mailbag/'>http://www.eevblog.com/forum/blog/eevblog-735-mailbag/
SPOILERS:
Why are cheap Ebay LED light bulbs so bad? Dave investigates why some of them are doomed to fail. DaveCAD and thermal camera time.
http://www.qt-brightek.com/datasheet/QBLP679E-IWK-XX.pdf
CPM700 Countersurveillance unit from Research Electronics Inc for cold war spy bug sweeping.
Cheap Ebay voltage sources for multimeter calibration
Raspberry Pi I/O Hat Kickstarter, the Hatilogico:
https://www.kickstarter.com/projects/jelby/hatalogico-for-the-raspberry-pi
Industrial RS232 modem teardown
Bricked Assus TF300 Transformer Tablet
Annoy-a-tron
Belkin router teardown
Cypress Parachute Automatic Activation Device.
Previous video teardown on this: https://www.youtube.com/watch?v=9-wzPTiLz5c
EEVblog Main Web Site: http://www.eevblog.com
The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2
Support the EEVblog through Patreon!
http://www.patreon.com/eevblog
EEVblog Amazon Store (Dave gets a cut):
http://astore.amazon.com/eevblogstore-20
Donations:
http://www.eevblog.com/donations/
Projects:
http://www.eevblog.com/projects/
Electronics Info Wiki:
http://www.eevblog.com/wiki/
Done.
The burnt up leds are probably more because the original driver in the light fitting was made for halogen lamp at much higher watt, so the voltage is probably more like 16v when using it with leds. You almost always need to change the driver as well when changing to simple resistor dropper leds like these.
that asus needs a hard reset.
I liked the look of that thermal camera it`s an Flir E8, But it`s like $2300 on Amazon,com, Yikes.
modem sex sound？？
My Facebook memories pointed out this was 2 years ago. How did you go with the Tablet Dave? Did you end up using the Annoy-A-Tron to prank anybody?
I'll hunt around for another package to send you soon.
watch out when openng probably booby trapped
Some electronic, electric systems can really be sometimes really be defined by smell! -In my point of view. For example it is usually due to the glue, or some other chemicals used at the time. Of couse, human's smell reatasmce is a way lower, than for example of a dog's, but I do not know so much about difference on smell memory! -Have to dig into that some a day. For example my a good friend, an emgineer, and my good a reference-source on for example plasma-sputtering, always remembers his grandad, when he moves his writing-plastic-plate (or whatever it is in english) on his table. For his grandfather, or a father used to store his heart-remedence-powder-poce under of a such a thing. Somethings are such a way with me too. I always "smell" a bad cat's-piss, when I even see a Celestion-speaker. Due to the stink, that they used to stink even some ten years ago, when a package of one was opened. -And some Fane''s too. I do not mean, that this correlates with the quality…..
Good shirt
Lol when he got the letter with the furry.
"Not really into… hockey… things".
God dave is lucky, he gets some of the coolest stuff ever, and for free. I can only find one of those CPM's on ebay and it's over 500usd without shipping taken into account 🙁 I'd never find anything neat like that around here either.
EEVblog Is it just my impression, or is the autofocus on your new Sony cam daaaaamn slow? Whenever you hold something forward for closeup, it takes almost ten seconds to focus.. which is usually longer than you actually hold the item forwards – which makes the closeups rather pointless.
"chef"
EEVblog Did you have any luck with my Tablet? Pretty sure it's bricked.. but if it works, then happy that Saigan has a new toy 🙂
I worked for an estate sale company just last year. I never want to see another casset tape/casset player, vhs tape/vhs player, crt television, or land-line phone for the rest of my life.
You can't give the crap away.
Watching this video on my asus transformer pad (tf701t) LOL
Is there any chance that you will rip the tape for the bug sweeper? Might sound strange, but I would love to hear it.
asus transformer 300t dave if u want after the tairdown would u like to sale it let me know
It's a Cypres 2. So it is a newer version. That is an expert version it will fire at 750 ft. It opens the reserve. I have not seen the other teardown 🙂
Big thumbs up for the mini-troubleshooting segment in this mailbag!
That's not a knife, now THIS is a KNIFE!