U1 U2 LM383 8 watt audio amplifier ic 
R1, R3 220 ohm resistor 
R2, R4 2.2 ohm resistor 
R5 1 megohm resistor 
R6 100k audio taper potentiometer 
C1, C7 10uf electrolytic capacitor 
C2, C5 470uf electrolytic capacitor 
C3, C4, C6 0.2uf ceramic capacitor 
SPKR1 4 to 8 ohm speaker (up to 8 inches diameter)