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200+200 watts stereo Amplifier using 2SC5200 & 2SA1943

200+200 watts stereo Amplifier using 2SC5200 & 2SA1943


This project is not for beginners. For make this project requires advanced level knowledge. Because this project cost is too high. So if you are a beginners, your little mistake can fail this project. 

This components are required to make this amplifier.


1. 4×2SC5200 Transistor.

2. 4×2SA1943 Transistor.

4. 4×TIP41C Transistor.

5. 4×TIP42C Transistor.

5. 4×2229 Transistor.

6. 4×A1015 Transistor.

7. 2×C1815 Transistor.


1. 4×47uf  capacitor 63/100v.

2. 4×100pf  capacitor 100v.

3. 4×470pf  capacitor 100v.

4. 2×474pf  capacitor 63/100v.

5. 2×0.1uf/104pf  capacitor 250/400v.


1. 8×0.33Ω resistor 5w.

2. 4×100Ω resistor 1w.

3. 4×10Ω resistor 1w.

4. 2×4.7kΩ resistor 1w.

5. 8×10Ω resistor 1/2w.

6. 2×33Ω resistor 1/4w.

7. 6×150Ω resistor 1/4w.

8. 2×1kΩ resistor 1/4w.

9. 2×10kΩ resistor 1/4w.

10. 4×56kΩ resistor 1/4w.

11. 2×33kΩ resistor 1/4w.

12. 4×3.3kΩ resistor 1/4w.

13. 2×4.7kΩ resistor 1/4w.


1. 6×1N4007.

2. 2×Zener 24 volt 1w or 1/2w.

Power Supply

1. 1×KBPC3510.

1. 2×10000uf capacitor.

Watch this video for better understanding

License► ©Technical Mriganka. You can't use this pcb layout for commercial purpose. You can use this pcb layout only for educational and diy projects.

>>DOWNLOAD HERE [200+200 watts stereo amplifier]..........

In this post I make a 400 watt stereo amplifier board using 2SC5200 & 2SA1943 transistor. This amplifier can deliver 200 watts RMS at 4Ω per channel. For power supply you can use 45-0-45 to 50-0-50 volt 10 Amp transformer. Now follow my steps for this amplifier. First we make pcb. For make pcb you need pcb layout. download the pcb layout and print it by laser printer on photo paper. Then cut the pcb layout. Then press the pcb layout by iron on copper clad board. Press the iron 10-15 munites. Then leave the pcb for cool down 10 munites. when the pcb was cool, put the pcb in water and move the pcb layout to copper clad board. Then put the pcb in ferric chloride [FeCl3+H2O] for etching 10-15 munites. when etching was end, clean the pcb by water. Then make hole on pcb. And then press the upper side print of pcb. Now your pcb is ready mount components by instruction.
When your amplifier is ready please test series lamp after input direct power

*Series light test..........Connect a 30-100w lamp with transformer's 220v ac line in series.

* Now test this amplifier.

1. Speaker output voltage.....0.00

2. Biasing voltage........0.4-0.7

3. Audio input voltage.......0.00

4. 2SC5200 collector voltage.........[+] positive volt.

4. 2SA1943 collector voltage.........[-] negative volt.

6. 2SC5200 & 2SA1943 base voltage.........0.1-0.2

7. 2SC5200 & 2SA1943 emitter voltage.........0.00

 Thank you,

Technical Mriganka.........

Post a Comment


  1. hello,

    your are doing good job.
    please make a video on when to connect speakers in series and parallel to a amplifier .
    it is very useful to everyone.
    thank you.
    waiting for the Video.

  2. Ye video se hame bahut halp mili he is liye thank you
    ...super video....

  3. subject to technical information if instead of the toroidal transformer you can use one of those sold on the market in 220 out 12v 10 amperes?

  4. Can i use 5 band equilizer board with this circuit

  5. I had another question that you told in this circuit to use 50-0-50 volt , is this voltage is ac 50-0-50 or dc 50-0-50 ?

  6. It's very nice project. I want to make it myself can you provide me all the components along with the pcb? How much it'll come without 5200&1943 transistor