TDA2030 + transistors BD908/BD907 – 18W HI-FI audio amplifier

TDA2030 + transistors BD908/BD907 – 18W HI-FI audio amplifier

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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

40 watts transistor amplifier tda2030 595x378 TDA2030 +  transistors BD908/BD907   18W HI FI audio amplifier tda2030 tda power amplifier circuit power amplifier Circuits Audio amplifier tda Amplifier

Schematic 40 Watts amplifier integrated circuit + transistors

tda2030 40 watts amplifier power transistor 595x442 TDA2030 +  transistors BD908/BD907   18W HI FI audio amplifier tda2030 tda power amplifier circuit power amplifier Circuits Audio amplifier tda Amplifier
Schematic 40 Watts amplifier integrated circuit + transistors

Printed circuit board for mounting the amplifier

tda2030 40 watt amplifier transistor power pcb TDA2030 +  transistors BD908/BD907   18W HI FI audio amplifier tda2030 tda power amplifier circuit power amplifier Circuits Audio amplifier tda Amplifier

40 watt amplifier transistor TIP142 layout TDA2030 +  transistors BD908/BD907   18W HI FI audio amplifier tda2030 tda power amplifier circuit power amplifier Circuits Audio amplifier tda Amplifier

40 watts amplifier transistor TIP142 silk

Part List TDA2030 +  transistors BD908/BD907 – 18W HI-FI audio amplifier and 35W driver

Components Valor
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 + 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 TDA2030AAudio 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

Download the PDF file for this assembly: Board component and copper side, silk , schematic, Datasheet UTC TDA2030.

Download PDF

Buy kits TDA2030 in Aliexpress with free Shipping in the Worldwide.

12 COMMENTS

  1. Thank you for the amp project Toni. I will also want to ask you about the psu of the project. Do you have one already prepared for the project or I can use an alternative one from other projects ?

  2. I bult this amp with good quality components.supply voltage 35v at 4A.How ever the output is only 13watts measured into 4ohms load. The amp specifies an output of 30watts. The voltage across the 1.5 ohm resistors is only .4v,but according to your advise it should be .6v to activate the power transistors.Cud u pls adv me the problem causing the low output.I have access to oscilloscope and sine/sq signal generator. The voltage at clipping is 8v read on a vtvm..this concludes the output to be 13w…using formula W=E2/R. yOUR ADVISE IS MOST APPRECIATED

  3. I BUILT THIS AMP AS PER CIRCUIT,BUT THE OUTPUT IS ONLY 13watts.IAM SUPPLYING 35V AT 4A POWER,BUT THE VOLTAGE ACROSS THE 1.5OHMS RESISTORS IS ONLY .4V.I UNDERSTAND IN ORDER FOR THE OUTPUT TRANS TO FIRE IT SHOULD BE AT LEAST .6V.THE IC AND THE TRANSISTORS ARE GENUINE, I GOT THEM FROM LONDON THRU A FRIEND OF MINE FROM A REPUTED DEALER.CUD U PLS ADV ME WHAT THE PROBLEM IS.ACCORDING TO THE PUBLISHER OF THE ORIGINAL CIRCUIT IT SHOULD DELIVER 30W INTO 4OHMS LOAD.I AWAIT YOUR ESTEMED ADVISE..MTKS

  4. Hi there! has anyone built this one? is it verified?
    I want to built this, but i need to know if its really a good hifi amp and if it works fine too.
    Thanks!

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