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Electronics => Beginners => Topic started by: lightbringer81 on September 05, 2013, 10:45:33 am

Title: hi all
Post by: lightbringer81 on September 05, 2013, 10:45:33 am
first of all i would like to say hi to all of you and i have a big question which makes me crazy :)

i like electronics , tearing devices apart > trying to rebuild them etc i read lots of book about electronics and i think i have basic theoretical knowledge about electronics like circuit components ohm's law etc but i cant find anything to use these and i need some practical knowledge i have a small set of equipment which is 3 multimeter , soldering iron , parts which i desolder from old devices but i cant go further than buying pcb with components included and just solder and run them thats where i need you more-experienced people than me :) any advise would help ...

thank you
Title: Re: hi all
Post by: babysitter on September 05, 2013, 11:00:29 am
Please choose your religion first - analog or digital, or enter the small sect of people wo care about both ;)

Is there some "project" you intend to do ?

Recommendations:

Learn to fix stuff from the scrap heap
Read, read and read
make and modify kits from one of the usual kit vendors

Greetings
the babysitter
Title: Re: hi all
Post by: lightbringer81 on September 05, 2013, 11:07:11 am
if you mean digital programming PIC and arduino things im not interested in that at all but if i could run both i would love to learn both but i say said i prefer analog if i understand analog-digital thing right

i do the reading part but i heard i cant get old things from dumpster because companies get these for money to recycle them (please correct me if i am wrong)
and thanks for advice i would try to modify things

Title: Re: hi all
Post by: Rerouter on September 05, 2013, 11:26:53 am
if you want to start with analog, practical, take an old power brick (plugpack as some people term them)  one of the AC-DC ones that you will never use again and crack it open, what is inside is an intro lesson to linear power supplies,
Title: Re: hi all
Post by: lightbringer81 on September 05, 2013, 11:34:58 am
im not that noob at all :) i crack opened dozens of adapters and things and i also built myself 30 volt 3 amp power supply now i am trying to make a MOSFET touch sensor and an ac power supply
Title: Re: hi all
Post by: lightbringer81 on September 05, 2013, 12:27:30 pm
anymore advice ?
Title: Re: hi all
Post by: Rerouter on September 05, 2013, 01:03:33 pm
now a starting point like that would be a good reference point for your first post, now i have some idea where you are lets ramp it up a bit,

for practical minded theroy, this is a good resource http://www.allaboutcircuits.com/ (http://www.allaboutcircuits.com/)

as for something to play with to learn, perhaps add current limiting to your power supply, depending on how deep you want to look, that can teach you a large amount about op amps and resistors,
Title: Re: hi all
Post by: lightbringer81 on September 05, 2013, 01:36:51 pm
thanks for that website that's useful

and what can i do to get into digital electronics ?

and do i need to buy any other equipment for my future work ?
Title: Re: hi all
Post by: JohnnyGringo on September 05, 2013, 01:40:01 pm
You might want to try these sites (as well as EEVblog of course!)

 http://educypedia.karadimov.info/electronics/electronicaopening.htm (http://educypedia.karadimov.info/electronics/electronicaopening.htm)

http://www.allaboutcircuits.com/vol_6/index.html (http://www.allaboutcircuits.com/vol_6/index.html)