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100 watts mono amplifier using TOSHIBA C5198 & A1941 transistor.

Technical Mriganka July 19, 2020

Components►
1. 1×C5198/ D718 Transistor.
2. 1×A1941/ B688 Transistor.
3. 2×BD139 Transistor.
4. 1×BD140 Transistor.
5. 2×BC558B Transistor.
6. 2×10uF capacitor 50/63V.
7. 1×100uF capacitor 50/63V.
8. 2×100pF capacitor 50/100V.
9. 2×470pF capacitor 50/100V.
10. 1×104pF capacitor 100/250V.
11. 2×3.3kΩ resistor 1/4w.
12. 3×22kΩ resistor 1/4w.
13. 1×1.5kΩ resistor 1/4w.
14. 1×470Ω resistor 1/4w.
15. 1×33Ω resistor 1/4w.
16. 2×10Ω resistor 1/2w.
17. 2×10Ω resistor 1w.
18. 2×0.33Ω resistor 5w.
19. 2×1N4007 diode.
20. 1×2 pin connector base 2.54 mm.
21. 1×2 pin screw terminal.
22. 1×3 pin screw terminal.
23. 1×5uh coil. (1/1.2 mm copper wire)
24. 2×4700uf capacitor 50V.

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.

PCB LAYOUT►https://drive.google.com/file/d/184YFA7kd5I0u8NdZl3-6dCw2tsQXvPUD/view?usp=drivesdk

In this post I make a 100 Watts R.M.S amplifier using C5198 & A1941 Transistor. Which can deliver upto 100 Watts in R.M.S power at 8Ω. 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. Audio input voltage = 0.0 volt
Speaker output voltage = 0.0 volt
Baising voltage = -0.5 to -0.7 volt

Post a Comment

6 Comments

  1. Rajendra Chopra19 July 2020 at 07:34

    Good

    ReplyDelete
  2. Unknown12 July 2021 at 09:39

    Can i use 36v-0-36v power supply for this

    ReplyDelete
  3. Unknown3 October 2021 at 12:24

    Use TDA 7293 WHICH IS TRUE RMS 100 WATT.NO HEATING ISSUE WITH SOOTHING SOUND MORE OVER IT CAN EASILY RUN WITH 100 TO 120 DC VOLTAGE.

    ReplyDelete
  4. Unknown11 April 2022 at 15:33

    Good

    ReplyDelete
  5. Pallino888827 June 2022 at 02:59

    hi have this transistor can i use a 40-0-40 power supply
    ???

    ReplyDelete
  6. Pallino888825 July 2022 at 11:04

    and can i change bd 139/140 with C5171 and a1930???

    ReplyDelete

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