EEVblog #847 - Mailbag

Mailbag. Dave opens his mail and tears down a bunch of random stuff.

SPOILERS:
Counterfeit copies of Art Of Electronics!
Genuine copy is here:

Other Youtubers:

Electromechanical vibrator from a chopper amplifier
Polygraph machine amplifier teardown

Fluke 70 teardown
RCA valve oscilloscope teardown
Analog Discovery 2
Red Pitaya V1.1 Digital Measurement & Control Development Board
Home energy Saver device teardown
Guest appearance by Sagan

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[TilmanBaumann]

Sagan completely failing to grasp the concept of a scam.
You plug it in and it does nothing!? Why would anyone do that?

You are right Sagan. Grown ups are weird.

[ManofCulture]

I'm impressed at Sagan knowing it's an oscilloscope :D.. thumbs up for Sagan :D

[FranLab]

I will keep my First Edition copy! That potted box looks like a stock generic motor start capacitor, I have seen simillar for small AC motors.

[yetna]

Watch the static discharge at 1:53 from the corner under Dave's hand.

[voltlog]

A comparison video between the red pitaya and the analog discovery 2 would be nice, thumbs up for that!

[proyectosledar]

DAVE, Please I want to see that energy saver video!! where is it???

[leisergeist]

"To get rid of stuff you don't want you just eat it!"
Wise words, wise words.. LOL

[MichelSatoer]

Wow Dave, this mailbag episode with Sagan as co-host takes it completely to another level! Sagan’s great reactions gives it really funny vibe to it.
Thumbs up for Sagan as a sidekick!

[uriituw]

The counterfeit one has a counterfeit sticker on the cover. :-D

[CircuitSix]

Ever since I was a kid I tore things apart. I took up electronics in the military and have been out of touch with it for quite some time. After seeing your videos I am getting the itch again. Time to get my bench setup!

[buxt-tech]

The level of excitement in that tot is so heartwarming. Not that I doubted it, but you're turning out to be a great dad.

[gamerpaddy]

"thats how we get rid of stuff which we dont want, we just eat it" - Sagan

[JoRosieQueen]

+EEVblog Sagan almost makes me tear up because he makes me remeber of the period when I was 4 years old and back then I was dismantling stuff next to my father, oh good memories, great episode, keep it up Dave!!

[voltvids]

What you didn't power up the scope. Where is the fun in that.I have a much older HP140A that I have converted into a osciloclock. All original parts, works like a jewel.

[buddhaman]

Sagan made a nice change of pace, he got excited seeing you unbox something and I couldn't help but giggle haha.

[stuartthegrant]

Sagan is such a bright kid, a true "chip of the old block" Dave. A credit to your wife and good self.

[PeterScargill]

When I was young (yup - a long time ago) my dad was a gadget fanatic before me. I remember he had one of the first Philips cassettes (recorder) mounted professionally between the front seats and wired into the radio so you could actually record radio.. but I digress - amongst the toys he had in the car was one of those mechanical vibrators to generate 240v from the 12v car battery - you could hear it buzzing in the background. Amazingly simple - and considering the transistors of the day, not a bad idea.

[zaprodk]

I'm pretty sure the EMI can has never been soldered onto that WiFi-module in that WDTV-box. The footprint for it is always made in the layout, and it's then only fitted if EMC-requirement shows it's needed. Cost cutting i see all the time.

[vitormhenrique]

Do a comparison between the analog discovery and the red pitaya please!
Thanks!

[nikomo]

When you link to other videos (PFC cap measurement garbage etc.), can you also link them in the description? Mobile devices don't support annotations, and I watch a surprising amount of YouTube on my tablet.