Boss_CE-2 (1)

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VR2VR2VR1VR1
+
9v
AC
ADAPTOR
INPUT R1
R52
R5
R9 R16
R22
R21
R25
R30
R32
R29
R10 R17R11 R18
R35
R39
R36
R13
R4 R6
C1
R2 R7
R14
C6 C11C7 C12C8 C13
C21
Q1
Q2 Q3
Q4
Q5
R3
R28
R27
R34 C20 C18
C29 C30
C9
R33
R31
R38 R40
D1
R37
R12
R8 R15
R19 R20
C2
C4
C3
C19
C22
D2
C5 C10
C14
Vb
Vb
Vb
Vb
Vb Vb
Vb
R
2 8
68
6
4
3
5
5 4
1
7
7
IC1a
IC2b
IC1b
2
3
1
IC2a
OUTPUT
R26
C17
C15
C16
R23
R24
VR1 VR2
VR3
trim.
1
RATE DEPTH
1
13 3
3
2 2
2
Corrrral Chorus
Rev.1.Oct.12.2005
2
1
3
6
7
7
2
4
5
8
8
5
1
3
4
IC3 - MN3007
IC4 - MN3101
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Build the Boss CE2 circuit on this layout. The FET switching has been removed to use true bypass 
switching. Off board components except for the potentiometers are not shown on the layout. 
Trademarks are property of their owners.
READY TO TRANSFER
LAYOUT
0
½
1
1½
2
2½
3
0 ½ 1 1½ 2
FP2005 FP2005TONEPAD.COM TONEPAD.COM
CORRAL CORRAL
R
1
R
1
R
11
R
11
R21R21
R
3
1
R
3
1
R
3
0
R
3
0
R
2
9
R
2
9
R
2
2
R
2
2
R32R32
R
13
R
13
R23R23R5R5
R14R14
R
2
4
R
2
4
R
4
R
4
R
15
R
15
R
2
5
R
2
5
R35R35
R
7
R
7
R
8
R
8
R
2
8
R
2
8
R
4
0
R
4
0
R
3
9
R
3
9
R
2
0
R
2
0
R52R52
++
C
2
9
C
2
9
++
C30C30
IC
1
IC
1
IC
2
IC
2
IC
3
IC
3
IC
4
IC
4
Q5Q5
Q4Q4
Q3Q3
Q2Q2
Q1Q1
++
C17C17
++
C
2
0
C
2
0
++
C9C9
++
C
18
C
18
C
1
C
1
C
2
C
2
C
3
C
3
C4C4
C
5
C
5
C
6
C
6
C21C21
C
7
C
7
C
8
C
8
C
2
2
C
2
2
C10C10
C11C11
C
12
C
12
C13C13
C19C19
C
14
C
14
C
16
C
16
C
15
C
15
R A T ER A T E D E P T HD E P T H
+9V+9V
OUTOUT
ININ
GNDGND
R
3
R
3
R
in
R
in
R
2
6
R
2
6
R19R19
D7D7
D1D1
D
2
D
2
R
27
R
27
R
2
R
2
R
6
R
6
R
12
R
12
R
16
R
16
R
36
R
36
R17R17
R
18
R
18
R
9
R
9
R
10
R
10
R34R34
R37R37
R
38
R
38 R
3
3
R
3
3
Resistors
R1 - 1K
R2 - 470K
R3 - 10K
R4 - 47K
R5 - 10K
R6 - 47K
R7 - 10K
R8 - 100K
R9 - 10K
R10 - 10K
R11 - 10K
R12 - 10K
R13 - 4.7K
R14 - 56K
R15 - 330K
R16 - 10K
R17 - 10k
R18 - 10K
R19 - 10K
R20 - 1Meg
R21 - 47K
R22 - 47K
R23 - 10k
R24 - 47k
R25 - 470 ohm
R26 - 100k
R27 - 4.7k
R28 - 4.7k
R29 - 33k
R30 - 47k
Transistors
Q1 - 2N5088
Q2 - 2N5088
Q3 - 2N5088
Q4 - 2N5088
Q5 - 2N5088
Potentiometers
VR1 - 100k Lin.
VR2 - 100k Lin.
R31 - 10k
R32 - 1Meg
R33 - 10k
R34 - 10k
R35 - 220K
R36 - 4.7K
R37 - 4.7K
R38 - 150K
R39 - 33K
R40 - 2.7K
R52 - 33 ohm
ICs
IC1 - 4558
IC2 - TL022
IC3 - MN3007
IC4 - MN3101
Trim Pots
VR3 - 10k
Capacitors
C1 - 0.047µF
C2 - 0.47µF
C3 - 0.0068µF
C4 - 100pF
C5 - 0.033µF
C6 - 0.0033µF
C7 - 0.0082µF
C8 - 470pF
C9 - 1µF
C10 - 0.033µF
C11 - 0.0033µF
C12 - 0.0082µF
C13 - 470pF
C14 - 0.033µF
C15 - 0.0068µF
C16 - 100pF
C17 - 1µF
C18 - 47µF
C19 - 0.1µF
C20 - 47µF
C21 - 0.01µF
C22 - 47pF
C29 - 100µF
C30 - 220µF
Diodes
D1 - 1N914
D2 - 1N914
D7 - RD11EB
Parts List
Rev.1.Oct.12.2005
Parts list and some mods, these mods will require soldering to flying component leads and 
components directly soldered to switches. Off board components except for the potentiometers are 
not shown on the layout. Trademarks are property of their owners.
THE VIBRATO MOD EFFECT LEVEL MOD
Lift one side of R21 and add a SPST switch like this: Effect level can be made adjustable by adding a 250k 
rev. Log. potentiometer in series with R22, this mod 
along with the Wet Bass mod are needed to convert 
to CE2B (for bass) specs.:
R22
R22
R21
R21
SPST
SPST
R25
R25
Vb
Vb
6
65
5
4
4
7
7
IC1b
IC1b
250K-C
C15
C15
C16
C16
R23
R23
R24
R24
1
E.LEVEL
3
2
C14 (changed to 0.012µF)
0.022
WET BASS SWITCHING MOD
SPST
C22
Capacitor
CHORUS INTENSITY CAP SWITCH MOD
This mod is for altering the value of the C22 in order to 
get a deeper chorus intensiy. Use a SPST switch and a 
47pF (or other value, experiment!) capacitor wired like 
this:
This mod modifies bass response on the modulated 
signal. This mod along with the Effect Level Mod are 
needed to convert the pedal to CE2B (for bass) specs. It 
also can be used on its own. Change C14 to 0.012µF, 
then add another another capacitor as shown:
Corrrral Chorus
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