Axis Fuzz

effect pedal project by Roger Mayer

Here's the Axis Fuzz effect pedal project from Roger Mayer.

This project has been described using terms like fuzz, roger mayer, and tagboard 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 tagboard resources too.

Project Resources

Parts List

  • C1
    100n
  • C2
    22u
  • C3
    470p
  • C4
    100n
  • C5
    22u
  • C6
    22u
  • C7
    2u2
  • C8
    22u
  • P1
    2k Drive
  • P2
    50k Volume
  • R1
    220R
  • R2
    680k
  • R3
    2M2
  • R4
    820k
  • R5
    100k
  • R6
    39k
  • R7
    47k
  • R8
    22k
  • R9
    10k
  • R10
    180k
  • T1
    2N3906
  • T2
    2N3904
  • U1
    9V

Similar transistors & Potential Alternatives

Can't find an exact match for the recommended transistors 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 225 alternatives for the 2N3906 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. The first 25 alternatives are shown below in alphabetical order by partnumber. See the to suit your preferences.

2N3906
more info
Cc
5
pF
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
0.31
W
Pol
PNP
Tj
135
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N2906E
more info
Cc
4.5
pF
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
0.2
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N2906U
more info
Cc
4.5
pF
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
0.2
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N3906-G
more info
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
0.625
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N3906A
more info
Cc
4.5
pF
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
1.5
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N3906BU
more info
Cc
4.5
pF
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
0.625
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N3906C
more info
Cc
4.5
pF
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
0.625
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N3906CSM
more info
Cc
5
pF
ft
200
MHz
hFE
100
β
Ic
0.2
A
Pc
0.31
W
Pol
PNP
Tj
135
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N3906E
more info
Cc
4.5
pF
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
0.1
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N3906G
more info
Cc
4.5
pF
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
0.55
W
Pol
PNP
Tj
125
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N3906N
more info
Cc
4.5
pF
ft
350
MHz
hFE
100
β
Ic
0.2
A
Pc
0.4
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N3906S
more info
Cc
4.5
pF
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
0.35
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N3906TA
more info
Cc
4.5
pF
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
0.625
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N3906TAR
more info
Cc
4.5
pF
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
0.625
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N3906TF
more info
Cc
4.5
pF
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
0.625
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N3906TFR
more info
Cc
4.5
pF
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
0.625
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N3906U
more info
Cc
4.5
pF
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
0.1
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N3906V
more info
Cc
4.5
pF
ft
250
MHz
hFE
100
β
Ic
0.2
A
Pc
0.1
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N4403
more info
Cc
9
pF
ft
200
MHz
hFE
100
β
Ic
0.6
A
Pc
0.31
W
Pol
PNP
Tj
135
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N4403BU
more info
Cc
8.5
pF
ft
200
MHz
hFE
100
β
Ic
0.6
A
Pc
0.625
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N4403G
more info
Cc
8.5
pF
ft
200
MHz
hFE
100
β
Ic
0.6
A
Pc
0.625
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N4403TA
more info
Cc
8.5
pF
ft
200
MHz
hFE
100
β
Ic
0.6
A
Pc
0.625
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N4403TAR
more info
Cc
8.5
pF
ft
200
MHz
hFE
100
β
Ic
0.6
A
Pc
0.625
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N4403TF
more info
Cc
8.5
pF
ft
200
MHz
hFE
100
β
Ic
0.6
A
Pc
0.625
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V
2N4403TFR
more info
Cc
8.5
pF
ft
200
MHz
hFE
100
β
Ic
0.6
A
Pc
0.625
W
Pol
PNP
Tj
150
°C
TranMat
Si
Vcb
40
V
Vce
40
V
Veb
5
V

There may be 65 alternatives for the 2N3904 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. The first 25 alternatives are shown below in alphabetical order by partnumber. See the to suit your preferences.

2N3904
more info
Cc
4
pF
ft
300
MHz
hFE
40
β
Ic
0.2
A
Pc
0.31
W
Pol
NPN
Tj
135
°C
TranMat
Si
Vcb
60
V
Vce
40
V
Veb
6
V
2N697
more info
Cc
35
pF
ft
50
MHz
hFE
40
β
Ic
0.5
A
Pc
0.6
W
Pol
NPN
Tj
175
°C
TranMat
Si
Vcb
60
V
Vce
40
V
Veb
5
V
2N730
more info
Cc
35
pF
ft
40
MHz
hFE
40
β
Ic
1
A
Pc
0.5
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
Veb
5
V
2N2221AX
more info
Cc
8
pF
ft
250
MHz
hFE
40
β
Ic
0.8
A
Pc
1.8
W
Pol
NPN
Tj
175
°C
TranMat
Si
Vcb
60
V
Vce
40
V
Veb
5
V
2N2396
more info
Cc
30
pF
ft
40
MHz
hFE
40
β
Ic
0.3
A
Pc
0.45
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
Veb
5
V
2N2853
more info
Cc
125
pF
ft
30
MHz
hFE
40
β
Ic
3
A
Pc
0.85
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
2N2853-1
more info
Cc
125
pF
ft
30
MHz
hFE
40
β
Ic
3
A
Pc
0.85
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
2N2853-2
more info
Cc
125
pF
ft
30
MHz
hFE
40
β
Ic
3
A
Pc
0.85
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
2N2853-3
more info
Cc
125
pF
ft
30
MHz
hFE
40
β
Ic
3
A
Pc
0.85
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
2N2855
more info
Cc
125
pF
ft
30
MHz
hFE
40
β
Ic
3
A
Pc
0.85
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
2N2855-1
more info
Cc
125
pF
ft
30
MHz
hFE
40
β
Ic
3
A
Pc
0.85
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
2N2855-2
more info
Cc
125
pF
ft
30
MHz
hFE
40
β
Ic
3
A
Pc
0.85
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
2N2855-3
more info
Cc
125
pF
ft
30
MHz
hFE
40
β
Ic
3
A
Pc
0.85
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
2N2868
more info
Cc
20
pF
ft
50
MHz
hFE
40
β
Ic
1
A
Pc
0.8
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
Veb
7
V
2N2909
more info
Cc
20
pF
ft
50
MHz
hFE
40
β
Ic
1
A
Pc
0.4
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
2N3506A
more info
Cc
40
pF
hFE
40
β
Ic
3
A
Pc
5
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
Veb
5
V
2N3506AL
more info
Cc
40
pF
hFE
40
β
Ic
3
A
Pc
5
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
Veb
5
V
2N3506L
more info
Cc
40
pF
ft
60
MHz
hFE
40
β
Ic
3
A
Pc
1
W
Pol
NPN
Tj
100
°C
TranMat
Si
Vcb
60
V
Vce
40
V
Veb
5
V
2N3597
more info
Cc
700
pF
ft
30
MHz
hFE
40
β
Ic
20
A
Pc
100
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
2N5527
more info
ft
200
MHz
hFE
40
β
Ic
5
A
Pc
5
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
Veb
3
V
2N5528
more info
ft
200
MHz
hFE
40
β
Ic
10
A
Pc
35
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
Veb
4
V
2N5529
more info
ft
200
MHz
hFE
40
β
Ic
10
A
Pc
35
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
Veb
3
V
2N5530
more info
ft
200
MHz
hFE
40
β
Ic
10
A
Pc
35
W
Pol
NPN
Tj
200
°C
TranMat
Si
Vcb
60
V
Vce
40
V
Veb
3
V
2N6412
more info
Cc
50
pF
ft
50
MHz
hFE
40
β
Ic
4
A
Pc
15
W
Pol
NPN
Tj
150
°C
TranMat
Si
Vcb
60
V
Vce
40
V
Veb
6
V
2SC189
more info
Cc
15
pF
ft
75
MHz
hFE
40
β
Ic
0.5
A
Pc
0.6
W
Pol
NPN
Tj
175
°C
TranMat
Si
Vcb
60
V
Vce
40
V
Veb
5
V