One for the brave people out there! :o) Now verified by riffer.
Picture of Simon’s build (riffer on FSB)
BOM:
C1 – 22nF
C2 – 1uF
C3 – 47nF
C4 – 51pF
C5 – 220nF
C7 – 47uF
C8 – 1uF
C9 – 220nF
C10 – 100nF
C11 – 10uF
C12 – 100uF
D1 – 1N914
D2 – 1N914
D5 – 1N914
IC1 – JRC4558D
Drive – 500K
Level – 100K
Tone – 20K
R1 – 1K
R2 – 510K
R3 – 10K
R5 – 10K
R6 – 4.7K
R7 – 51K
R8 – 1K
R9 – 10K
R10 – 10K
R11 – 220R
R12 – 510K
R13 – 10K
R14 – 10K
R15 – 100R
R16 – 10K
R17 – 1K
R18 – 1K
R23 – 1K
Q1 – 2SC1815
Q2 – 2SC1815