EEVblog #546 - Mailbag Monday

TekBox Digital Solution Open Source Hardware Kit for an EMC conducted emissions compliance Line Impedance Stabilisation Network (LISN)
PIC Microcontroller Programming: in 10 captivating lessons:
PCB kit construction.

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[jamesrbrindle]

Hey Dave, those IP phones won't have much inside of interest but a whiteboard session on power over ethernet protocol which most of them use would be interesting. Lots of basic voltage detection and switching and signalling to discuss.

[KOTR]

Dave!!! Should have edited the package at 6:00, you can see the address when the plastic moves. Just a heads up.

[Psychlist]

lol. Suddenly, Elektor stops sending packages to Dave :)

[PeterYanTech]

Dave, the Telstra branded phone is neither ISDN nor VOIP.  It is (was?) used on Telstra's Customnet Spectrum service.  It's an "enhanced analog" service where the voice is analog but the signalling (on/off-hook, ringing, dialling etc) was digital.  

[simoncrabb]

I think the Telstra phone is a re-badged Meridian, which is a Nortel brand.  Nortel (Northern Telecom) being a Canadian company.  Interesting to see both were made in Australia though - perhaps they manufacture in more than one country.  The Nortel Meridian PBX systems are/were hugely popular. I had the (unfortunate?) opportunity to be a Software Engineer in the late 90s in the BT (British Telecom) "Remote Access Customer Equipment" team that designed the internal systems that allowed the engineers to manage the PBXs remotely.  This was back in the day of modems, we had to dial into PBXs to save a man in a van having to pay a visit.  Ahh, the good old days before everything was just on the Internet.

[ChongMcBong]

my favourites are the teardowns, but mailbag monday is always interesting too :)

[CondoreComputing]

your mailbag videos are always my favorite :) 

[tgamber]

We have the Cisco phones at my work (the one you have on the left at the beginning of the video). They are quite good!

[JorgeHernandez-jigb]

A pcb design book written by you would be awesome, Dave. Greetings from Mexico. 

[dtiydr]

JAL is actually a, could say,  pedagogic and totally logic language (in contrary to any of the others) for those who have never even seen a code so it´s very easy to understand how it worlks and use pretty much right away, as seen on the examples. I mean fex "delay_100 ms" couldn´t be more obvious what it means then the code used in any other language.

I don´t program but JAL was actually the first program language i saw many years ago when it was brand new that was directly understandable. Agree though that if you should go into programming for a long time you better learn one of the other common ones. 

[CommodoreFan]

LOL at the title it's Sunday 7:30pm est here in on the East coast of the USA, when I started watching this video ;-) 

[tocsals]

Hm. First thougt, with a longer pin connector, that LCD probably would sit nicely on the component side of the uC board (not the solder side), and the amplifier could be flipped too...

[TehRealCanadarocker]

Chrmoe (the guy that sent you the logo) has an awesome channel, I love that LED cube

[Sloxx]

As someone who writes C++ I suppose I can see the point of something like JAL when used in the context of programming PICs.  It does look pretty easy to understand the code,   and if it's all you want to do then I cant see too much of a problem with it.

[NonoxX]

Laser cut wood is a great and cheap way to make mechanics. A few years ago, my school's team and I made a robot for Eurobot using this for mechanics. Almost no metal parts were used, and it made the job. Since it is cheap, you can afford to make mistakes and correct it.

[TimDousset]

Those Panasonic phones have a nice rotary encoder on the jog wheel and also LCD. The Cisco has a graphic LCD.

[techpros]

Dave, could those LISN kits be used to send data (obviously not high speed data) down a DC power line?? cause you could feed data in at one end of your DC line and get it back out again at the other end??

[Portal]

Why not a PS3 Teardown?!?!?! PLEASE I've been dying for this. Why WHy WHY WHY WHY!

[unicodefox]

3:47 It was finished in early 2012 (or late 2011)

[jonskunator]

Just a silly pedantic observation. At 3:50 the "Not Austria" is crossed out, which would re-negate the statement, and say instead that is actually Austria. Ha! Although, maybe this isn't Australia, thus making the statement possibly true.