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100+100 watts stereo amplifier using TOSHIBA 2SC5200 & 2SA1943 transistor.

1. 2×2SC5200 Transistor.
2. 2×2SA1943 Transistor.
3. 4×TIP41C Transistor.
4. 2×TIP42C Transistor.
5. 4×BC558B Transistor.
6. 4×10uF capacitor 50/63V.
7. 2×100uF capacitor 50/63V.
8. 4×100pF capacitor 50/100V.
9. 4×470pF capacitor 50/100V.
10. 2×104pF capacitor 100/ 250V.
11. 4×3.3kΩ resistor 1/4w.
12. 6×22kΩ resistor 1/4w.
13. 2×1.5kΩ resistor 1/4w.
14. 2×470Ω resistor 1/4w.
15. 2×33Ω resistor 1/4w.
16. 4×10Ω resistor 1/2w.
17. 2×10Ω resistor 1w.
18. 4×100Ω resistor 1w.
19. 2×10Ω resistor 2w.
20. 4×0.33Ω resistor 5w.
21. 4×1N4007 diode.
22. 2×2 pin connector base 2.54 mm.
23. 2×2 pin screw terminal.
24. 1×3 pin screw terminal.
25. 2×5uh coil. (1/1.2 mm copper wire)
26. 2×4700uf capacitor 50V.
27. 1×rectifier 10A.

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.


In this post I make a 200 Watts R.M.S amplifier using 2SC5200 & 2SA1943 Transistor. Which can deliver upto 100 Watts in R.M.S power at 8Ω per channel. We test this amplifier, and we got it's frequency range 30hz-20khz. For power supply you can use 30-0-30V 5A 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.
After complete this board don't forget to series light test. After connecting the series light, make sure that the series light does not turn on. If the series light not turn on, then check the voltages.
Speaker output voltage = 0.0 volt
Baising voltage = -0.5 to -0.7 volt
Audio input voltage = 0.0 volt.
If you get same voltages, then connect preamplifier to input and connect speaker to output.

Post a Comment


  1. Can you please provide the circuit diagram.

  2. Sir 1000w board gerber upload pannunga sir. I need it sir.

  3. Hi, can you provide schematic diagram for this. 100+100w stereo circuit.

  4. Can u please share the easyeda link

  5. This comment has been removed by the author.

  6. Hi, I made this circuit, everything is great, but in some frequencies, such as piano sound, it makes noise (hissing sound), of course, I used a 24-volt, 3-amp transformer for testing. Could the problem be with the transformer?