Jump to content
ELFORUM - Forumul electronistilor

Filtru cu cristale de cuart cu banda fixa sau variabila


Recommended Posts

O schema foarte simpla si cu performante rezonabile de filtre cu quartz de SSB sau A1 gasiti aici :


Se gasesc in comert cristalele la preturi mai mult decat radioamatoricesti.

Daca este realizata cu varicapuri poate deveni un filtru cu banda variabila, atat pentru A1 cat si pentru SSB (BLI sau BLS)



Adaptarea de impedanta cu trafuri pe tor sau oala ferita reglabila (preferabil, pentru reglaj fin al neuniformitatilor in banda).

Filtrul este simetric, iar pentru 500 ohmi (de exemplu) traf 10:1 intrare si 1:10 iesire.

Link to comment
Share on other sites

  • Replies 0
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

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.

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