r1=r2=220kohm
r3=1Mohm
r4=r5=r7=20kohm
r8=30.1kohm
r9=1kohm
rv1=10kohm trimmer
c1=47microF
c2=100nF
C3=10microF
c4=22microF
c5=2,2nF
c6=1microF
c7=10microF
d1=d2=1n4148
lb10=10 led package
s1=switch
pl1=9 V battery clip
ic1=LM324
ic2=LM3915
L1= 1 microH inductor
