2
R1
2M2
C1
47n
D1, D2
LED
R2
10k
C2
100pF
D3 - D5
BAT41
R3
1M
C3
100pF
D6
1N5817
R4
22k
C4
10n
R5
4k7
C5
39n
Q1, Q2
2n7000
R6
5K1
C6
1uF
Q3
MPF102
R7
1k
C7
220n
R8
10k
C8
220n
IC1
4558
R9
220R
C9
1uF
R10
1k
C10
100n
CLIP
SPDT
R11
1k
C11
1uF
R12
1M
C12
100uF
VOL
100kB
R13
4k7
C13
100n
TONE
20kW
R14
100R
C14
10uF
BASS
50kC
R15
10k
C15
4n7
DRIVE
500kA
R16
4k7
R17
47R
R18
10k
R19
10k
R20
22k
IC
Switch
Pots
B.O.M.
Resistors
Caps
Diodes
Transistors
Note:
“Flats” switch is optional and not shown on the BOM. To use the Flats switch, simply connect
the F1 and F2 pads to any SPDT or SPST switch. When engaged it puts a filter in parallel with the
active tone control to flatten the mid-range (like the Full-Drive). If you do not want to use the Flats
switch, you can omit C15 and R20.