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Components
1. 2×BC548B/ BC547B (NPN) Transistor.
2. 6×4.7kΩ resistor 1/4W.
3. 4×10kΩ resistor 1/4W.
4. 2×6.8kΩ resistor 1/4W.
5. 2×1.5kΩ resistor 1/4W.
6. 2×1MΩ resistor 1/4W.
7. 2×220Ω resistor 1/4W.
8. 2×100Ω resistor 1/4W.
9. 1×680Ω resistor 1/4W.
10. 4×1N4007 Diode.
11. 1×Led 3 mm.
12. 2×0.022uF (223) capacitor 50/ 100V.
13. 2×0.001uF (102) capacitor 50/ 100V.
14. 4×0.01uF (103) capacitor 50/ 100V.
15. 2×0.047uF (473) capacitor 50/ 100V.
16. 2×0.22uF (224) capacitor 50/ 100V.
17. 2×100pF (101) capacitor 50/ 100V.
18. 2×0.1uF (104) capacitor 50/ 100V.
19. 1×7812/ 7809 + voltage regulator.
20. 1×2 pin connector Base/ Socket 2.54 mm.
21. 2×3 pin connector Base/ Socket 2.54 mm.
22. 1×1000uF capacitor 25V.
23. 3×Dual gang potentiometer 100K.


License:- ©Technical Mriganka. You can't use this PCB Layout and Gerber File for commercial purpose. You can use this PCB layout and Gerber file only for Educational and DIY projects.




schematic


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How to make PCB by ironing method

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 minutes. Then leave the PCB for cool down 10 minutes. When the PCB will 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 minutes. when etching will 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.

How to test this Tone control


Output & Input - Check Audio Output and Audio Input voltage. Here you get no voltages 0.00V. If you get same voltages, then connect this tone control to amplifier.

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