Filter diagram
Partlist
C1 10nF
C2 10nF
C3 10nF
C4 10nF
C5 5nF
C6 6nF
C7 15nF
C8 2.2nF
C9 10uF non-polarised
IC1 TL074P
IC2 TL072P
R1 82K
R2 180K
R3 10K
R4 10K
R5 68K
R6 33K
R7 2.2M
R8 10K
R9 10K
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