Fallstaff OD

effect pedal project by mirosol

Here's the Fallstaff OD effect pedal project from mirosol.

This project has been described using terms like booster, overdrive, 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
    100n
  • C2
    22n
  • C3
    47n
  • C4
    47u
  • C5
    1u
  • C6
    22n
  • C7
    47u
  • D1
    1N914
  • D1 (Alt)
    1N4148
  • D2
    1N270
  • P1
    10k Boost
  • P2
    500k Color
  • PT1
    20k
  • R1
    10M
  • R2
    330k
  • R3
    8k2
  • R4
    220k
  • R5
    470k
  • R6
    22k
  • R7
    1k
  • T1
    2N2925
  • T1 (Alt)
    2N3904
  • T2
    AC176
  • 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 57 alternatives for the 2N2925 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.

2N2925
more info
Cc
10
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.36
W
Pol
NPN
Tj
125
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N2921
more info
Cc
10
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.36
W
Pol
NPN
Tj
125
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N2922
more info
Cc
10
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.36
W
Pol
NPN
Tj
125
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N2923
more info
Cc
10
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.36
W
Pol
NPN
Tj
125
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N2924
more info
Cc
10
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.36
W
Pol
NPN
Tj
125
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N2926
more info
Cc
10
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.2
W
Pol
NPN
Tj
100
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N2926-1
more info
Cc
10
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.2
W
Pol
NPN
Tj
100
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N2926-2
more info
Cc
10
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.2
W
Pol
NPN
Tj
100
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N2926-4
more info
Cc
10
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.2
W
Pol
NPN
Tj
100
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N2926-5
more info
Cc
10
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.2
W
Pol
NPN
Tj
100
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N2926B
more info
Cc
10
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.2
W
Pol
NPN
Tj
100
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N2926G
more info
Cc
10
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.2
W
Pol
NPN
Tj
100
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N2926O
more info
Cc
10
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.2
W
Pol
NPN
Tj
100
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N2926R
more info
Cc
10
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.2
W
Pol
NPN
Tj
100
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N2926Y
more info
Cc
10
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.2
W
Pol
NPN
Tj
100
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N5172
more info
Cc
10
pF
ft
200
MHz
hFE
100
β
Ic
0.1
A
Pc
0.2
W
Pol
NPN
Tj
175
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2N5419
more info
Cc
6
pF
ft
100
MHz
hFE
100
β
Ic
0.5
A
Pc
0.4
W
Pol
NPN
Tj
125
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
4
V
2N6076
more info
Cc
13
pF
ft
100
MHz
hFE
100
β
Ic
0.1
A
Pc
0.36
W
Pol
NPN
Tj
125
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2SD545E
more info
Cc
30
pF
ft
180
MHz
hFE
100
β
Ic
1
A
Pc
0.6
W
Pol
NPN
Tj
125
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2SD1619
more info
Cc
15
pF
ft
180
MHz
hFE
100
β
Ic
1
A
Pc
0.5
W
Pol
NPN
Tj
150
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2SD1619R
more info
Cc
15
pF
ft
180
MHz
hFE
100
β
Ic
1
A
Pc
0.5
W
Pol
NPN
Tj
150
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
5
V
2SD2263
more info
hFE
100
β
Ic
0.5
A
Pc
0.5
W
Pol
NPN
Tj
150
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
6
V
9013F
more info
Cc
3.5
pF
ft
50
MHz
hFE
96
β
Ic
0.4
A
Pc
0.4
W
Pol
NPN
Tj
135
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
3
V
BC271
more info
Cc
12
pF
ft
100
MHz
hFE
100
β
Ic
0.3
A
Pc
0.3
W
Pol
NPN
Tj
175
°C
TranMat
Si
Vcb
25
V
Vce
25
V
Veb
8
V
BC358
more info
Cc
10
pF
ft
125
MHz
hFE
100
β
Ic
0.1
A
Pc
0.31
W
Pol
NPN
Tj
135
°C
TranMat
Si
Vcb
25
V
Vce
25
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

There may be 5 alternatives for the AC176 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.

AC176
more info
Cc
200
pF
ft
1
MHz
hFE
52
β
Ic
1
A
Pc
0.22
W
Pol
NPN
Tj
90
°C
TranMat
Ge
Vcb
32
V
Vce
20
V
Veb
10
V
2N4077
more info
Cc
150
pF
ft
1
MHz
hFE
50
β
Ic
1
A
Pc
8
W
Pol
NPN
Tj
100
°C
TranMat
Ge
Vcb
32
V
Vce
20
V
Veb
10
V
AC181KL
more info
Cc
60
pF
ft
2
MHz
hFE
50
β
Ic
1
A
Pc
2.5
W
Pol
NPN
Tj
100
°C
TranMat
Ge
Vcb
32
V
Vce
20
V
Veb
20
V
BD361A
more info
hFE
50
β
Ic
3
A
Pc
15
W
Pol
NPN
Tj
150
°C
TranMat
Si
Vcb
32
V
Vce
20
V
Veb
10
V
NKT781
more info
Cc
90
pF
ft
0.5
MHz
hFE
52
β
Ic
1
A
Pc
0.215
W
Pol
NPN
Tj
90
°C
TranMat
Ge
Vcb
32
V
Vce
20
V
Veb
5
V