Semnalul de la microfon este aplicat unui etaj repetor pe emitor realizat cu T1, apoi este preluat şi amplificat de T2 , dupa care prin intermediul potenţiometrului R9 se dozeaza,…
Amplificatorul a fost conceput cu 8 tranzistori fara transformatoare, astfel fidelitatea este net superioara unui amplificator cu transformator. Puterea de iesire este de circa 20 W, folosind un etaj final…
Amplificatorul este construit din materiale usor accesibile oricarui pionier si scolar si conceput pentru amplificarea curentilor de joasa frecventa, generati de diferite aparate radioelectronice. Amplificatorul are o putere dirijata de…
Amplificatorul Concert este un montaj desfasurat adica un panou didactic care ajuta la intelegerea modului de functionare. El este format din 4 tuburi electronice E-L-84-2 buc., E.C.C. 83-2 buc. in…
Amplificatorul este conceput pornind de la o schema cunoscuta folosita in partea sonora a televizorului E-47A, la care s-a mai adaugat o amplificare luind partea trioda a tubului ECL80. Montajul…
Interfonul este destinat comunicarii operative intre servicii si persoane aflate in diferite incaperi, cladiri, obiective industriale si localitati. Numarul de posturi ce pot fi conectate este de 5, plus postul…
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