Jump to content
ELFORUM - Forumul electronistilor
gherasim

amplificator 150W mosfet

Recommended Posts

am un amlificator cu 8 tranzistori in final IRFA 450 dupa redersare sunt doua sigurante care ard de fiecare data cind le schimb. Ce poate sa fie ? ceva probleme in final si sa consume pre mult adica final in scurt ,ce ar trebui sa masor si cum ??? poate fiecare tranzistor in parte? poate ma ajutati (alimentarea este simetrica 28 v)

Link to comment
Share on other sites

chinezaria aceea de ampif cat credeai ca te tine?dupa ce ii dai de cap sa fi pregatit si pt alte ''incidente''.ca sa-l faci sa poti avea baza in el trebuie sa schimbi toti condensatorii electrolitici si aproape toti tranzistorii si diodele.e facut cu cele mai penale componente posibile :sparge: .trage si tu de el cat poti sau incearca sa-l mariti.succes!

Link to comment
Share on other sites

multumesc ptr indicatii.nu am facut scurt in nici un fel . a cedat din senin la punerea in functie.Am sa masor t,dar condensatorii electrolitici care sunt buni tot trebuie inlocuiti?chear si cei din redresare?-pentru ca nu vad rostul ,poate sa aiba filtrajul vreun amestec in scurtul produs?! oricum multumesc.

Link to comment
Share on other sites

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.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  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