EEVblog #513 - Mailbag

Mailbag galore.
Dave screws up and releases the magic smoke on the best mailbag item ever! - the time circuits from Back To The Future. Turns a light bulb on with his mobile phone, and goes underwater in a submarine.
And a cameo appearance by everyone's favorite.

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[micahnightwolf]

+EEVblog Not sure if someone already pointed this out, or if you've already noticed by now, but it says in the letter that "the side of the pin header where the connector's key goes is marked." You ought not to have skipped over that. No worries though. It gave you a perfect opportunity to teach us how to solder an SMD chip (and somehow mess up the Clock pin lol). It happens to all of us. But these things do say Read Letter First for a reason.

Though I do think they could make the thing more idiot proof by using keyed connectors, or at least reverse current protection diodes. Would have saved you a lot of trouble if they did. Anyway, thanks for the cool blog. Cheers!

[ForViewingOnly]

This is possibly one of the best Mailbag Mondays videos ever. Awesome job Dave and mailers!

[kennyfication]

Greetings from the shackspace :D Unfortunatly I didn't help doing the time circuit because I wasn't member of the shack back then. But I'm pretty proud to be it now and the other clock works just fine :)

[EEVblog]

We use both edison screw and boyonet types here. Edison screw would be the popular now.

[EEVblog]

They start the young kids on the bigger Duplo LEGO, and then the regular LEGO - two bites of the cherry!

[EEVblog]

Yup, lost my cookies at our fathers day picnic yesterday. Dodgy Thai chicken from the night before.

[ian-c.]

You were so excited by that mailbag you just dived in and connected it the wrong way round, exactly what I do !

[MrMac]

Some of your fans, are so so Good to you. Thumbs up to those kind people, more power to those wonderful fans.

[Hamsterzilla]

Dave, Belgian beer is the absolute best beer in the world.

[PaulJosephdeWerk]

Dave, my guess on flipped display for the two USB Voltage/Current meters is so that you can have either left or right side output connector and still see the display correctly.  Consider this when you plug one into a laptop; I have USB connectors on both the right and left side of my laptop.

[sarowie]

those USB measure things are brilliant :-)
I allways like watching your videos, but this mailbag was outstanding thanks to those who donated such brilliant, nice, cool or just interesting things. So thumb up to Dave and the other thumb up for the people that send such things.

[KimbrellBrad]

Looks like a new star of the video blogosphere is born. Great ending. Props to Sagan!

[AIMA]

Duvel the beer in the upper right of the postcard is probably the best beer I've had. Perfect for those days when you let the magic smoke out.

[ratdude]

It came with a 1.25A wall charger. It has a "USB Charge" mode that limits current draw to .5A when it detects that it's connected to a computer. The trick is to short the data pins on the USB connector which is what tells it to enable full current draw.

IIRC a lot of tablets do this too... IIRC the kindle fire comes with a 2.6A USB charger.

[KeithRomeTheGreat]

Really liked this mailbag session. hopefully you can get that clock repaired and working for the next one :)

[frollard]

I'm a 911 emergency operator. Good place to get this in here; If a phone is out of service/no sim car IT CAN STILL DIAL 911, 112, 999, etc. DO NOT GIVE IT TO A CHILD TO PLAY WITH! IF YOU ACCIDENTALLY HIT EMERGENCY DIAL, DO NOT HANG UP! We get notified when the call comes in that the call was placed and nothing sucks more than hearing a person talk then the line disconnects.

[InsurgentX]

Earlier in time: Doc Brown pulls the package containing a real Flux Capacitor out of the post for fears of a space-time continuum tear after watching Dave handled the display panel.

[GregoMorgan]

I remember getting a 14+ T-Rex LEGO with motors and pneumatics for my sixth birthday.

[ratdude]

FYI: Some usb devices do draw more than 1A (in charge mode). Usually Car GPS units and some smartphones (my LG Nitro HD can draw 1.25A).

[rkupka]

that Sagan´s little thump up made my day :) awesome.