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Oscilator simplu cu varicap

2018-01-19 08:19  
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Adaugat in Radio | 1 comentariu
Mai multe scheme cu:oscilatoare radio

Acest oscilator este adecvat multor emitatoare. Din R1 se regleaza frecventa de emisie iar daca nu se acopera plaja dorita se regleaza si din trimer. Oscilatorul si bufferul trebuie sa fie neaparat ecranate altfel apar armonici si auto-oscilatii!

Schema oscilator fm

oscilator simplu cu varicap
Valorile pieselor:

L1 = 15spire / 0.2 /feritaL2 = L3 = 3 sau 4 spire /0.8 / 9 / lungime = 10mmDioda varicap bb139
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