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3 Band Stereo tone control with Gain Booster

1. 4×2.7KΩ resistor 1/4W.
2. 6×100KΩ resistor 1/4W.
3. 1×680Ω resistor 1/4W.
4. 2×220KΩ resistor 1/4W.
5. 6×1KΩ resistor 1/4W.
6. 2×2.2KΩ resistor 1/4W.
7. 4×2.2uF capacitor 25V/ 50V.
8. 2×1uF capacitor 25V/ 50V.
9. 2×2200uF capacitor 25V/ 50V.
10. 2×0.1uF (104) capacitor 50/ 100V.
11. 4×470pF (471) capacitor 50/100V.
12. 2×0.0047uF (472) capacitor 50/100V.
13. 2×8 pin IC base/ socket.
14. 1×7812/ 7815 + voltage regulator.
15. 1×7912/ 7915 - voltage regulator.
16. 1×Led 3 mm (Green).
17. 3×3 pin connector Base/ Socket 2.54 mm.
18. 4×Dual gang potentiometer 100K.
19. 4×IN4007 Diode.

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.

How to order PCB at

PCBWay are the largest PCB manufacturer in China. They offer Standard PCB, Advanced PCB, Rigid-Flex PCB, SMD-Stencil and PCB Assembly Service. Here you get, 100x100mm 2 Layer PCB only at $5, And processing time within 24 hour. And they distribute, worldwide.

Step 1 - Go to Then sing in or create new account on PCBWay. Then click on 'Quote Now'.

Step 2 - Click on 'Quick-order PCB: Upload Gerber files & autofill parameters'.

Step 3 - Now upload your Gerber file.

Step 4 - Now choose your PCB. (Quantity, Color, silkscreen, thickness etc.)

Step 5 - Then Select Country and Shipping Method. and click Save to Cart.

Step 6 - Then click Proceed to checkout.

Step 7 - Then place order and Pay.

After one week I received my PCB. You can see the PCB quality, it's awesome. I ordered Blue color PCB. But you can choose your PCB color. PCBWay provide total 9 color solder mask - Green, Blue, Red, Purple, Black, White, Yellow, Matte Black and Matte Green. On PCBWay you can get 100x100mm 2 Layer PCB only at $5. Maximum size PCB you can get 500x1100mm. And maximum Layer is up to 14 Layers. And If you order PCB first time at PCBWay, then you get a $5 discount coupon. So upload your Gerber today and get best quality PCB.

How to test this Tone Control

Check Voltages - 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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