Black Acid

effect pedal project by Emanating Fist Electronics

Here's the Black Acid effect pedal project from Emanating Fist Electronics.

This project has been described using terms like emanating fist electronics, fuzz, and stripboard 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
    1u
  • C2
    4n7
  • C3
    220p
  • C4
    22u
  • C5
    47u
  • C6
    100n
  • P1
    500k Volume
  • P2
    1k Fuzz
  • P3
    100k Drive
  • PT1
    20k
  • R1
    150k
  • R2
    560R
  • R3
    2k2
  • T1
    BC109
  • T2
    BC109
  • 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 5 alternatives for the BC109 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.

BC109
more info
Cc
5
pF
ft
150
MHz
hFE
180
β
Ic
0.1
A
Pc
0.3
W
Pol
NPN
Tj
175
°C
TranMat
Si
Vcb
30
V
Vce
20
V
Veb
5
V
BC468B
more info
Cc
3.5
pF
ft
200
MHz
hFE
180
β
Ic
0.1
A
Pc
0.22
W
Pol
NPN
Tj
125
°C
TranMat
Si
Vcb
30
V
Vce
20
V
Veb
5
V
BC469
more info
Cc
3.5
pF
ft
200
MHz
hFE
180
β
Ic
0.1
A
Pc
0.22
W
Pol
NPN
Tj
125
°C
TranMat
Si
Vcb
30
V
Vce
20
V
Veb
5
V
BC469B
more info
Cc
3.5
pF
ft
200
MHz
hFE
180
β
Ic
0.1
A
Pc
0.22
W
Pol
NPN
Tj
125
°C
TranMat
Si
Vcb
30
V
Vce
20
V
Veb
5
V
BCE108
more info
Cc
6
pF
ft
200
MHz
hFE
180
β
Ic
0.1
A
Pc
0.15
W
Pol
NPN
Tj
125
°C
TranMat
Si
Vcb
30
V
Vce
20
V
Veb
5
V