Sound amplifier...Amplficador de som

348

03:18:56

Instagram @eletronicmaker

Sound amplifier passed by my professor at SENAI Paulo Amaral (a genius).
Amplificador de som passado por meu professor do SENAI Paulo Amaral (um gênio).

Input: blue 
Output: green (8ohms speaker) 
Diodes 1N4007 
Capacitors> 50V 
PNP transistors: BC327 (left)
                              BD140 (right)
NPN transistors: BC337 (left / close to bc327)
                              BD139 (first upper right) 
                              TIP41C (second upper right / darligton with bd139)                                TIP41C (second bottom left / darligton with bd140)
Source 30V 500mA

Entrada: azul
Saída: verde (auto falante 8ohms)
Diodos 1N4007
Capacitores >50V
Transistores PNP: BC327(esquerdo)
                                 BD140(direito)
Transistores NPN: BC337(esquerdo/próximo ao bc327)
                                 BD139(primeiro superior direito)
                                 TIP41C(segundo superior direito/darligton com bd139)
                                 TIP41C(segundo inferior esquerdo/darligton com bd140)
Fonte 30V 500mA
                                 

published 6 years ago

fatcat2

6 years ago

An explanation would have been better :-)

fatcat2

6 years ago

Wow. Darlington and Sziklai?

coachka

6 years ago

yes fatcat2, the pair bd139 with tip41c is a darlington and the pair bd140 with tip41c form a complementary darlington or Sziklai(which I have just known by that name). thank you.

fatcat2

6 years ago

I have never seen them together.

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