B3

effect pedal project by ARC Effects

Here's the B3 effect pedal project from ARC Effects.

This project has been described using terms like charge pump, fuzz, stripboard, and vero and is reportedly verified, meaning many hobbyists have already completed this project and verify that the instructions are without issue.

Beyond the specs and details found on this page, you'll want to check out these stripboard resources too.

Project Resources

Parts List

  • C1
    10u
  • C2
    100n
  • C3
    4u7
  • C4
    4u7
  • C5
    1n
  • C6
    100n
  • C7
    47u
  • D1
    1N270
  • D1 (Alt)
    Ge Diode
  • P1
    5k Balance
  • P2
    100k Sustain
  • P3
    100k Timbre
  • Q1
    ICL7660S
  • R1
    27k
  • R2
    10k
  • R3
    10k
  • R4
    100k
  • R5
    470k
  • R6
    10k
  • R7
    3k3
  • R8
    15k
  • T1
    NKT213
  • T2
    NKT213
  • T3
    NKT213
  • U1
    9V

Similar transistors & Potential Alternatives

Can't find an exact match for the recommended transistor in this project within your stash? Or maybe you just feel like experimenting. Use these tables below to get started finding a suitable or otherwise interesting transistor substitution.

There may be 9 alternatives for the NKT213 mentioned above in the parts list for this project. These suggestions were derived by considering the original component's hFE, Pol, Ic, Vcb, and Vce values and finding comparables in our database. These alternatives are suggestions for further exploration (fun!) and have not been tested in the context of this project. You can also to suit your preferences.

NKT213
more info
Cc
60
pF
ft
0.5
MHz
hFE
50
β
Ic
0.25
A
Pc
0.2
W
Pol
PNP
Tj
90
°C
TranMat
Ge
Vcb
32
V
Vce
18
V
Veb
10
V
AC153
more info
Cc
100
pF
ft
1
MHz
hFE
50
β
Ic
2
A
Pc
1
W
Pol
PNP
Tj
90
°C
TranMat
Ge
Vcb
32
V
Vce
18
V
Veb
10
V
AC153-5
more info
Cc
100
pF
ft
1
MHz
hFE
50
β
Ic
2
A
Pc
1
W
Pol
PNP
Tj
90
°C
TranMat
Ge
Vcb
32
V
Vce
18
V
Veb
10
V
AC153K
more info
Cc
100
pF
ft
1
MHz
hFE
50
β
Ic
2
A
Pc
1
W
Pol
PNP
Tj
90
°C
TranMat
Ge
Vcb
32
V
Vce
18
V
Veb
10
V
AC153K5
more info
Cc
100
pF
ft
1
MHz
hFE
50
β
Ic
2
A
Pc
1
W
Pol
PNP
Tj
90
°C
TranMat
Ge
Vcb
32
V
Vce
18
V
Veb
10
V
NKT212
more info
Cc
60
pF
ft
0.5
MHz
hFE
50
β
Ic
0.5
A
Pc
0.2
W
Pol
PNP
Tj
90
°C
TranMat
Ge
Vcb
32
V
Vce
18
V
Veb
10
V
NKT216
more info
Cc
60
pF
ft
0.5
MHz
hFE
50
β
Ic
0.25
A
Pc
0.2
W
Pol
PNP
Tj
90
°C
TranMat
Ge
Vcb
32
V
Vce
18
V
Veb
10
V
NKT218
more info
Cc
60
pF
ft
0.5
MHz
hFE
50
β
Ic
1
A
Pc
0.2
W
Pol
PNP
Tj
90
°C
TranMat
Ge
Vcb
32
V
Vce
18
V
Veb
10
V
OC81N
more info
ft
1
MHz
hFE
50
β
Ic
0.5
A
Pc
0.2
W
Pol
PNP
Tj
80
°C
TranMat
Ge
Vcb
32
V
Vce
18
V
Veb
10
V