Tone Control Mono by 5 Transister (C945)

I am interesting about stereo amplifier high quality. My father tell me it must hear sound well, low noise and so loudly.
Usually audio tone control made with a transistor that low noise , but less power than used IC systems. I think this circuit will be that because it has four transistors in diagram.we can also use to boost up a little audio signal.
In the image circuit is mono form. The transistors has five, number C945 or C1815 or C828 . I hope you can find it at general electronic store or inside an old pcb. You can use the power supply source during voltage 12V to 24V at minimum current at 100mA.
The picture no. 2 is PCB diagram for make this project, it small size so easy to use. You can use StripBoard-3U Uncut Strips 1 Sided PCB because it has a few components.

Circuit Tone Control Mono by Transister C945x5

PCB Tone Control Mono by Transister C945x5

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