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ELFORUM - Forumul electronistilor
Dan Morar

Scheme radio vintage

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Salut! Aceeasi problema am avut-o si eu. Chiar daca am indepartat ECC85 de condensatoarele din apropierea soclului (i-am facut un soclu supra-inaltat care scotea tubul inafara ecranului de aluminiu al blocului UUS) n-am obtinut nicio imbunatatire. Si eu am crezut ca deriva termica a condensatoarelor fixe este cauza instabilitatii in frecventa. Nici dupa inlocuirea condensatoarelor cu altele de calitate nu am castigat nimic. Tind sa cred ca tubul in sine este cauza, poate uzura lui cauzeaza un flux neuniform de electroni. As merge pe varianta colegului +_Florin_+

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