Sparkle Boost

effect pedal project by Dragonfly

Here's the Sparkle Boost effect pedal project from Dragonfly.

This project has been described using terms like booster, 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
    22n
  • C2
    1u
  • C3
    10u
  • P2
    5k Gain
  • P3
    100k Volume
  • PT1
    100k
  • R1
    2M2
  • R2
    1M
  • R3
    2k7
  • R4
    100k
  • T1
    NTE458
  • T1 (Alt)
    JFET_N
  • 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 9 alternatives for the NTE458 mentioned above in the parts list for this project. These suggestions were derived by considering the original component's FETType, CntlChType, Vds, and Id 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.

NTE458
more info
CntlChType
N
channel
FETType
JFET
Id
0.02
A
Pd
0.25
W
Rds
2500
Ω
Tj
125
°C
Vds
50
V
2SJ163
more info
CntlChType
N
channel
FETType
JFET
Id
0.02
A
Pd
0.15
W
Rds
3000
Ω
Tj
150
°C
Vds
65
V
Cd
4
pF
2SK68A
more info
CntlChType
N
channel
FETType
JFET
Id
0.02
A
Pd
0.25
W
Rds
2500
Ω
Tj
125
°C
Vds
50
V
Vgs(off)
0.13
V
2SK105
more info
CntlChType
N
channel
FETType
JFET
Id
0.02
A
Pd
0.25
W
Rds
6500
Ω
Tj
150
°C
Vds
50
V
Vgs
5
V
2SK389
more info
CntlChType
N
channel
FETType
JFET
Id
0.02
A
Pd
0.2
W
Rds
1250
Ω
Tj
125
°C
Vds
50
V
2SK514
more info
CntlChType
N
channel
FETType
JFET
Id
0.02
A
Pd
0.25
W
Rds
5000
Ω
Tj
150
°C
Vds
50
V
2SK1103
more info
CntlChType
N
channel
FETType
JFET
Id
0.02
A
Pd
0.15
W
Rds
3000
Ω
Tj
150
°C
Vds
65
V
Cd
1.5
pF
2SK1104
more info
CntlChType
N
channel
FETType
JFET
Id
0.02
A
Pd
0.3
W
Rds
2500
Ω
Tj
150
°C
Vds
65
V
Cd
1.3
pF
2SK2881
more info
CntlChType
N
channel
FETType
JFET
Id
0.02
A
Pd
0.45
W
Rds
700
Ω
Tj
125
°C
Vds
50
V
Vgs
50
V