About make amplifier ,Carried on progressively outside inside .
An outer cover with one's own characteristics of works of DIY is the problem that should be solved first. What you need is the time beyond electronics,such as the art designer, match colors etc.. It is really enjoyment to buy these small part every one and assemble. The electron will gain knowledge and will be accumulated progressively ,you may not deepen the principle in initial stage ,but the simple circuit can help you to set up confidence . The circuit above me is very simple,contrasting the drawing can be completed in half a weekend. The following is a simple electric parameter:
IC:LM386 X 2
Low distortion: 0.2% (AV = 20, VS = 6V, RL = 8W, PO =
125mW, f = 1kHz)
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What electric capacity spend dismantle metal tantalum that get off camera head,other is CBB,the resistance is the ordinary charcoal membrane.