The amplifier is built on TDA 2003. And very easy to repeat. The appearance of the low-frequency amplifier 10 Watt:
Miniature audio amplifier 10 Watt

You can use this tiny amplifier in any of his work. The size is really tiny 6.5 x 4.5 cm Produces 10W and is powered by a nine volt battery.

List of components:

R1 : 6 Ohm
R2 : 220 Ohm
R3 : nothing
R4 : 10 KOhm pontesiometer
C1 : 2200 uF / 25V
C2 : 470 uF / 16V
C3 : 470 nF / 63V
C4 : 100 nF
C5 : nothing
C6 : nothing
IC1 : TDA 2003

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