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.
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.
Requires a power supply of 18 to 35V/1.5A simple. If you want a version 2 Stereo lot of these!
Performance of this amplifier, technical data
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Schematic 40 Watts amplifier integrated circuit + transistors
Printed circuit board for mounting the amplifier
Part List TDA2030 + transistors BD908/BD907 – 18W HI-FI audio amplifier and 35W driver
|Resistors 1/4 W* 5%|
|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 + 3.3K|
|R7||3.3k = Orange, Orange, Red, Gold|
|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|
|D1, D2||1N4007 or equivalent|
|IC1||TDA2030A – Audio amplifier integrated circuit|
|T1||BD908 or equivalent see text|
|T2||BD907 or equivalent see text|
|VCC||Connector power supply|
|Power source, Heat sink to the IC / Transistor, Printed circuit board, Solder, speakers 50 watts 4/8 Ohms|
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