Jump to content
ELFORUM - Forumul electronistilor

Vu-meter cu led

Guest crisangel33

Recommended Posts

Guest crisangel33

Salut am un Vu-meter facut de mine cel cu ac , 4 diode 1 rezistenta de 3k si un condensator merge ok , l-am legat la iesirea din placa de sunet adica este asezat pe unitate , dar mar interesa sai pun un led , avand in vedere ca este dioda Nu inteleg dece nu se aprinde si as avea o intrebare cum as putea sal fac sa functioneze , Ma refer la bass etc...

http://www.google.ro/imgres?start=98&um ... ,s:98,i:20



Multumesc anticipat !

Link to comment
  • Replies 9
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Guest crisangel33

deci am vu-meter cu ac si vreu sa ii fac 1 led sau 2 sa faca dupa inalte sau medii adica dupa sunet si am incercat cu un led pe acea schema da nu merge ...

Link to comment
Guest crisangel33

am vro solutie sai maresc tensiunea...? sau las sa alimentez cu o sursa si sa nu mai faca dupa melodie..desi pe mine mar fi incantat solutia sai pot mari voltajul

Link to comment

tensiune poate ai. dar ai vazut ce scrie pe "ac"50-100uA nu o sa apinzi ledul in veci :da calculeaza si tu ce curent ai la 1V prin 3K. si la un led ii trebuie o medie de 20mAincearca cu o dioda si o rezistenta la vreo 10 ohm inainte de rezistenta, direct pe iesirea de la sunet.

Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.Terms of Use si Guidelines