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Senzor IR DigiTv pt tuner dublu


Guest SMINKEN

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Guest SMINKEN

Buna. Asi dori sa fac o copie de pe receptorul IR al tunerului Digi dublu. Am facut schita dar este un tranzistor si o bobina la care nu stui ce sa pun.

Bobina SMD L21 este la intrare +"5"V (inca nu am masurat), iar tranzistorul Q39 comanda un led si scrie pe el ZG 10. Inca nu am gasit in cataloage. Oare pot sa pun un BC547? Multumesc

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Daca emitorul tranzistorului ZG10 e pus la masa(-), e NPN, deci puteti pune orice tranzistor NPN de mica putere, inclusiv BC547, receptorul acela lucreaza la 38KHz."LED"-ul e un fototranzistor, de fapt... :rade: Bobina e un soc de vreo 20uH(nu e critica valoarea).

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