Circuit Transistors BD908 BD907 18W HI-FI Audio Amplifier TDA2030
TDA2030 + power transistors (TIP41, TIP42 or 2SC1061, 2SA761 or BD908, BD907 or BD911, BD912 or TIP31, TIP32) for an audio amplifier up to 40 Watts. Simple installation, no special settings requires and uses few components.
transistor power amplifier audio tda2030 595x446 TDA2030 + transistors BD908/BD907 18W HI FI audio amplifier and 35W driver
The amplifier is based on the TDA2030 IC and two transistors that can be (TIP41, TIP42 or 2SC1061, 2SA761 or BD908, BD907 or BD911, BD912 or TIP31, TIP32), finally you can use several pairs of transistors! The circuit around the TDA2030 is traditional to about 14-20 watts using simple supplies!
The audio output amplified by leaving the pin TDA2030 4, the transistors are active when a large flow of current through R1 and R8 pass transistors to drive and ensure high power output.
R1* R8* 1.5 = Resistor 2 Watts
R2, R3, R6 56k = Green, Blue, Orange, Gold
R4 1 = Brown, Black, Gold, Gold
R5 30k = Orange, Black, Orange, Gold – Use the 27K + 33K
R7 3.3k = Orange, Orange, Red, Gold
Capacitor’s
C1 1000µF/50V = Electrolytic Capacitor
C2, C5, C6 0.22µF = Capacitor Polyester
C3 2.2µF/50V = Electrolytic Capacitor
C4 2200µF/50V = Electrolytic Capacitor
C7 22µF/50V = Electrolytic Capacitor
C8 10µF/50V = Electrolytic Capacitor
Semiconductors
D1, D2 1N4007 or equivalent
IC1 TDA2030A – Audio amplifier integrated circuit
T1 BD908 or equivalent see text
T2 BD907 or equivalent see text
Correctors
IN Audio Input
OUT Audio Output
VCC Connector power supply
Miscellaneous
Power source, Heat sink to the IC / Transistor, Printed circuit board, Solder, speakers 50 watts 4/8 Ohms