/diy/ - Do It Yourself

>>532793
Are you sure you are using Cathod IC -Cathod Display or Anod IC- Anod IC?

maybe you are mixing them up if you are the umbers will apear however they will light up backwards

so as number 1 you will see an E

as number 3 you will see a 1 to the left

post pics faggot


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>>532744
No,

http://books.google.com.mx/books?id=6XH7BUqm-lIC&lpg=PP1&pg=SA7-PA8#v=onepage&q&f=false

SO i want to make this proyect for my class "Analog Communications"

I want to build an AM or FM radio circuit using only analog components (no ICs) but im not sure how to do it

I know how to design PCBs, solder, and electronic components in general

i just dont know to design from scratch something like this, im hoping anyone here can throw me a clue

it doesnt have to be fancy or anything like the pic, as long as it works in circuit ill be happy

>>532290
>I know you guys are really hands on and great handymen

thanks

>or whatever

fuck you

>Anyway I want to get more into DIY shit and be better with my hands, ect building things shit like that

Bulding shit like what? (woodworking, electronics, fornitire, glass.... etc...)

> I don't really have a project or anything to start with I'm just wondering what is a good way to get into it?

First you need to decide what do you want to do

> Do you guys read books/search vids on how to do shit you're interested in

yes usually we know what we are doing, especially when dealing with electricity and electronics, for example i am an electrical engineering student so every proyect i try to apply or understand what i saw on class, whenever i donmt kknow how to do something or i want to do something odd i try to find someone who did it first, these people who have done it usually have documented their proyects online either or on websites or even PDFs to help you out

> Did your fathers teach you that kind of stuff?

Yes and no, my father is still a hard working man there is nothing or anything he isnt willing to deal with his own hands (fix, modify, create) but most of the time he doesnt know what or how to do it he just does it so i learned to do things by my own but school is the one teaching me not to put my hands where my brain hasnt been first

>how to into DIY

Before asking HOW you might want to ask WHY

https://www.google.com.mx/search?q=why+DIY&oq=why+diy&aqs=chrome.0.69i59j69i60l4j0.3082j0&sourceid=chrome&espvd=210&es_sm=93&ie=UTF-8

Mostly is because you want to feel proud of what your own hands have made and do not depend on any retailer or store to sell you what you want to have

after you read the 1st 5 results, you might understand a little bit more about people in this forum and DIYs in general

and then when you define what do you want to start you can start getting some basic gear for you to start your own adventure

>>530916
havce you never dropped a glass of water over your desk?

now do it with several outlets around the desk

>>531568
no garantee, i got it in a raffle

what is this little blue square? i found it inside of my remote control,

it looks like a trimpot but doesnt have any kind of control to set

its has a number on top 432E

>>531485
if its an integrated circuit shouldnt i be able to find it take it out and replace it even if its SMD soldering?

>>531485
where can i read more about this blue memory controller?

heres a 2nd pic of it while changing the channel,

this will be also my 1st DIY repair, so i dont really know is there is an online database for service manuals ,

the model is a 40" (diag.) Sony® BX450 HDTV

i have been looking using google with no luck

So family was watching a movie on TV via HDMI (from the PC) and suddenly this happened (pic)

at first i thought it was the video card feeding the HDMI cable, then i thought i could be the cable and unplugged it, and i found out it was none of them

The TV just stays like that no matter the video mode, channel, or if i turn it on or off

Im an electronics engineering student and i want to fix it, i know how to use an osciloscope and multimetter, and many other tools so im pretty confident i can do it

However i already made a search for the service manual and i found nothing online so i will ask here is anyone knows where could i start or if anyone here has encountered something like this

DRILL THAT SHIT UP SON

you are trying to fix electronics without any knowlege about electronics

>>530646
i dont think the outlets looking to the roof are a good idea, it could actually kill you

i would put them around the desk never on the top

>>530506
gotcha good idea

SO Im supposed to make a table with all the kinds of diodes their graphs and their most relevant values, i am willing to make it but does anyone have a reliable source where all of this info is so i can do it as equal as possible for every diode ?

and finally, i closed the case and lost a screw on the process so i had to look for it for 30 min on the floor

after i finally closed the case i plugged in my audio cable to my new jack and using the alligator clips that i soldered i could plug it to my osciloscope easily , and yes i can fainally read the frequency and amplitude of the sonometer without having to open the sonometer

i also used thermofit so the wires didnt short anything inside, and also used a bit of silicon above the IC i soldered hoping it will help the solder to stay in place

As for the jack i had drill a hole and glue it with lots of sillicon

i had no other choice but to put it right below the microphone, since there was no space anywehre else

after it cooled down i had to remove a bit since the case wasnt closing as intended

as i said the problem was that i had a sonometor with no analog output so i could plug it directly to my osciloscope and read the frequency of the sound

so i ended up soldering 2 wires to pin 1 ](output) and pin 4 VCC, once done i had to make a cable so i could plug it in to the 3.5mm jack and then to the osciloscope so i did this

So i got it done after 24hrs exactly

I wanted to share it here since it was done to mostly thanks to >>529694 advice

without this advice i wouldnt have known where to start,

so here it goes

start reading about patch antennas they are easy to do, you might need some kind of antenna/repeater to plug your home made antenas

must modern buildings use this kind of antenas (1 patch per floor sometimes more depends of the size) to redirect the signal from the outside to the inside of the building remember that your hous is a faraday cage so if you do and place a patch antena right below the floor (the insulation) ypou should be getting full reception no matter where you are inside your house,

remember, "patch antennas" also known as "microstrip antenas" they are easily done at home and there are many tutorials online

>>529726
so in the end i can drill a hole in the sonometer and silicon glue this

http://mexico.newark.com/lumberg/1503-02/connector-receptacle-3-5mm-phono/dp/98K5778

that way i can plug any standard 3.5 mm male audio connector directly to the osciloscope probes whitout having to tear it down and do what i did today

>>529725
and then again i meant a 3.5mm output