META-Electronics 101

[Stagefright13]

Woohoo! :thumb: :thumb:

 

[Stagefright13]

Hey CJ I was able to calculate the resistor needed to reduce 12 volts DC to 2 volts for my G-9 Pilot led today. But I tested it first with my "Rev D" lab supply to see how hot the resistor would get. LOL just in case I was wrong. Thanks.

See I actually applied some 101! :green:

 

[tonebucket]

CJ

I have just been reading a text book and it states the conventional flow of current in a circuit is from the postive but electrons flow in the opposite direction, do you know much about this??

 

[clintrubber]

Wayne has unfortunately left the building but let's still have some EDN-links going:

Visualizing differential crosstalk  (1 page)

http://www.edn.com/filtered/pdfs/contents/images/6619023.pdf

While the writer won't have had audio in mind, it's interesting reading nevertheless. Might be of use if you feel the need to run balanced PCB traces and want to get the very most out of it.


Regards,

  Peter

 

[aljam]

"I have just been reading a text book and it states the conventional flow of current in a circuit is from the postive but electrons flow in the opposite direction, do you know much about this??"

Current flow is the flow of electrons (I=amperes) and is always - neg to + positive. In a car battery for example during start-up, the electrons leave the negative terminal, travel through the chassis/frame, through the electric starter motor, through the starter solenoid and back to the positive terminal.

It is important to understand this to be able to fully comprehend how electrons travel through semiconductor material.

Hope this helps.

 

[QUEEF BAG]

yes-  electrons have a negative charge, so they will move toward positive

"holes" move from positive to negative.

someone else should explain holes.

 

[RoadToNever]

I enjoyed the animated circuit drawings, any chance of getting back the ones that are missing?

 

[CJ]

if people are actually reading this stuff i will continue to add more,

maybe i can grab the old pics off the wayback machine...

 

[gyraf]

if people are actually reading this stuff...

22006 Views @2012-feb-11

Jakob E.

 

[RATMNL]

Yeah Man, All good stuff...
New into Electronics and this is a wealth of information :O

 

[Stagefright13]

Yeah I read it! Several times actually. And like Gyraf said 22,000 views! I guess A few others are too. I actually learned more on here than working in electronics back in the day. Keep up the good work!!

Thanks,
John

 

[pacemaker]

same for me CJ,
i've read it and learned a lot ,
please keep this thread alive ,
regards,
Francois

 

[Stagefright13]

There ya go CJ A worldwide fan base!!!!This thread kicks ass! One of the best on here. Don't stop now!

Thanks,
John

 

[mulletchuck]

any chance this could be updated so the missing pictures can be restored?

 

[CJ]

i do not know if animated files are possible on the new server,

plus only one pic per post, which gets imbedded,

let me see if we can sub in something,

 

[mulletchuck]

a free pic-hosting service like photobucket or torrentpic.com will also work if you don't mind editing the posts to include embedded images.

 

[gato]

This is a great read. Thanks for writing this up.

 

[Kat]

Thank you for all this information. Keep going !!

 

[sharpeleven]

Thanks for doing this. Great info! I'd love to see the diagrams also...  8)

 

[CJ]

thanks, will re-up some diagrams an add more,