C5200 A1943 TDA2030 Amplifier DIY Homemade

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In this video i am showing, how to make an ultra bass 100 watts mono class-AB powerful amplifier using C5200 A1943 TDA2030 transistors. Combination of C5200 A1943 Amplifiers are widely used for high gain. I demonstrated the circuit with 18 volts dc power supply of 2.5 amperes but you can use 12 volts to 18 volts dc. I used 4 ohms 80+ watts speakers which provided a greater sound.

Circuit Diagram

Following is the Circuit Diagram of C5200 & A1943 Amplifier with the combination of TDA2030 IC.

C5200 A1943 TDA2030 Amplifier Circuit Diagram 1

Following is the Circuit Diagram of Volume Bass and Treble.

C5200 A1943 TDA2030 Amplifier Circuit Diagram 2

Development Images

used in C5200 A1943 TDA2030 Amplifier

Step #1

Take a large enough heat sink and stick all transistors on it. You must use insulation (MICA) between transistors and heat sink. As the Collector pins of C5200 & A1943 are internally connected with the back plate of transistors for heat dissipation. Collector pins of both transistors will have plus & minus current which will cause short circuit if you will avoid insulation

C5200 A1943 TDA2030 Amplifier Image1

Step #2

Join plus & minus of two diodes 1N4148 together and solder the join. The positive side will go to right transistor C5200 base while the other end of negative side will go to left transistor A1943 base. Solder one end of 330 ohms/1w resistor to Pin.3 of TDA2030 and the other end solder to the center joint of both diodes 1N4148.

C5200 A1943 TDA2030 Amplifier Image2

Step #3

Connect Emitters Pin.3 of both transistors C5200 & A1943 together with a piece of wire. Join one end of 33k resistor to Pin.2 of TDA2030 and other end solder to the junction of both emitters.

C5200 A1943 TDA2030 Amplifier Image3

Step #4

Solder one end of 100nf capacitor (104J) to Pin.4 of TDA2030 IC. Don’t connect this capacitor to pin.5 as shown in the following image. I corrected it in later. Solder one end of 680 ohms resister to Pin.2 of TDA2030 IC.

C5200 A1943 TDA2030 Amplifier Image4

Step #5

Connect 2.2 ohms resister to 104J capacitor. Join 22uf capacitor’s positive to 680 ohms resister. Solder 22k to Pin.1 of TDA2030 IC. Solder 1uf Capacitor’s Negative to Pin.1 of TDA2030 IC. Connect 5.6k resister to 1uf capacitor’s positive.


Step #6

Following is a general purpose circuit of Volume-Bass-Treble which can be attached with almost all amplifiers. To see the construction of this project [Click Here].


Step #7

Place the heat sink with components on a piece of hard board sheet. I used two 2-pole terminal blocks for audio in and out. Both are connected together for ground connection.


Step #8

Now its time to connect all four loose connections to join them to ground. So, solder 2.2 ohms resister, 22uf capacitor negative side, 22k resister and 5.6k resister to ground.


Step #9

Connect Red piece of wire to Center Pin.2 of C5200 and Pin.5 of TDA2030 IC. Also connect Yellow piece of wire to Center Pin.2 of A1943 and Pin.3 of TDA2030 IC. Stick one 3-Pole Terminal Block on the board for dual power supply 18-0-18v. Connect a piece of red wire to Collector center Pin.2 of C5200 and the other end to 3-pole terminal block left channel. Now connect one more piece of yellow wire to Collector center Pin.2 of A1943 and the other end to 3-pole terminal block right channel. Connect center point of 3-pole terminal block to ground.


Step #10

Connect the other point of right 2-pole terminal for speaker to Emitters junction for speaker output. Connect Pin.3 of volume controller to ground. Also connect Pin.1 of Bass Controller with a green piece of wire to the end end of 2-Pole terminal block. Also Connect center pin of volume controller with a green piece of wire to the positive of 1uf capacitor.


Step #11

Insert 3 wires of dual power supply to 3-Pole terminal block. Red wire should +18v, Black should common and Yellow wire should -18v dc.Also insert audio jack 3 wire to left 2-pole block terminal. Grou,d to ground and other two wire to the other point.


Step #12

Insert two wires of speaker to the right 2-pole terminal block. Speaker negative to ground and positive to the other point.


Step #13

All the connection are completed at this stage. Now insert audio jack pin to mobile and turn the power ON. Play music and enjoy it. Thank you so much for visiting the site.


List of Components

used in C5200 A1943 TDA2030 Amplifier

  • 2SC5200 Transistor x 1
  • 2SA1943 Transistor x 1
  • TDA2030 IC x 1
  • 1uf / 50v Capacitor x 1
  • 22uf / 50v Capacitor x 1
  • 104J ( 100nf ) Capacitor x 5
  • 1N4148 Diode x 2
  • 2.2 Ohms Resistor x 1
  • 330 Ohms/1w Resister x 1
  • 680 Ohms Resistor x 1
  • 1k Ohms Resistor x 1
  • 2.2k Ohms Resistor x 1
  • 5.6k Oms Resistor x 1
  • 22k Ohms Resistor x 1
  • 33k Ohms Resistor x 1
  • 2 Pole Terminal Block x 2
  • 3 Pole Terminal Block x 1
  • 50k Potentiometer x 3
  • Heat Sink x 1
  • Power Supply 12v to 18v
  • Speakers 4 Ohms
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16 comments on C5200 A1943 TDA2030 Amplifier DIY Homemade

  1. Pregunta:
    Tengo 3 parlantes al cual poseen mas ohmios que watts:
    – 2 de 16 ohms & 5 watts
    – 1 de 8 ohms & 2 watts
    ¿Es obligatorio que cada uno tengan menos 5 ohmios? o puedo usar lo que tengo?

    1. Porque este amplificador está diseñado para altavoces de 4 ohmios. Si va a 16 ohmios, dará más carga en los transistores de salida y se calentarán más. Puede reducir ohmios de altavoz conectándolos en paralelo. Entonces, dos altavoces de 16 ohmios conectados en paralelo se convertirán en 8 ohmios. Entonces puede usar conectándolos en paralelo.

    2. Mas, boleh saya minta di buatkan skema pembuatan amplifier mini dari transistor sanken 2sc2922 dan 2sa1216 yang super bass🙏🏻

  2. hello good morning, how did you make this font for the project with c5200 / a1943 and the TDA 2030, could you explain

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