Simple Audio Mixer

Mixer Parts List :

R1-8-31-32=3.3K ohms        
R2-7-27-30=100 ohms        
R3-4-9-10=1M ohms        
R5-11-21-22-23-24=10K ohms        
R6-12-15-17=1K ohms        
R13-14-19-20-28-29=47Kohms        
R18-16-25-26=22K ohms        
RV1=2X100K ohms Lin.        

C1-4-7-9-12-17=10uF 16V
C2-8=470nF 63V MKT
C3-24-27-28=100nF 63V MKT
C5-10=10pF ceramic
C6-11=1uF 16V
C13-16-20-21=47pF
C22-23-25=100uF 16V
C14-15-18-19=1uF 63V MKT

IC1=TLC274
IC2=TLC272
IC3=7805
D1=1N4007
D2=LED 3mm
JF3-4=RCA female plug
JF7=female jack 3.5mm mono
JF1-2-5-6=female jack 3.5mm stereo