Raminind in domeniul receptoarelor simple cu 1…2 tranzistoare, vor mai fi prezentate citeva scheme, a caror constructie este ceva mai dificila, deoarece intervin circuite de reactie sau de amplificare in radiofrecventa, ale caror legaturi trebuie sa fie cit mai scurte si fara paralelisme. Prin nercspcctarea acestor recomandari se pot produce reactii nedorite traduse prin auditii perturbate si fluieraturi, intocmai cum se produce efectul de microfonie intre un difuzor si un microfon asezate fata in fata.
Prin schemele ce urmeaza, radioamatorii se vor familiariza cu unele fenomene electronice, intilnite in mai toate radioreceptoarele defecte, ceea ce va constitui un bun exercitiu teoretic si tehnic pentru un constructor si depanator radio.
Privacy & Cookies Policy
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.