In cele ce urmeaza este descries un amplificatoru cu performante foarte bune in gama UUS. Acesta este un montaj cascod care utilizeaza doua tranzistoare TEC de fabricatie romaneasca (BFW11 sau BF45). Stabilirea regimului de lucru se realizeaza cu potentimetrul semireglabil R3.
Pentru 144MHz, bobinele L1 si L2 au cate 5 spire din CuAg Ø 1.2 mm cu pas de 1mm. Diamterul bobinei este 8mm (in aer).
Se paote utiliza si ca amplificatory de antena TV dar se vor modifica datele bobinelor corespunzator canalului receptionat. Montajul se realizeaza intr-o cutie metalica etansa.
Articol publicat in suplimentul Electronistul – Supliment: 50 scheme electronice si montaje practice
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