Aion Electronics Nebula DS-830 Distortion Master Посібник із швидкого старту - Сторінка 2

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Parts
Capacitors
C1
100n
C2
3n9
4
C3
1uF
film
C4
10pF
C5
1uF
film
C6
10uF
electro
C7
470n
C8
220n
C9
3.3uF
C10
47n
C11
100n
C12
3n3
C13
10uF
electro
C14
100n
C15
10uF
electro
C16
100uF
C17
47uF
electro
Resistors
R1
10k
R2
1M
R3
10k
Build Notes
Extra pads have been provided in case you want to double up on diodes in the feedback clipping section. For
1
a fully stock unit, jumper D3 and D4.
The original uses a linear (B) taper for the Gain control, but I prefer an audio (logarithmic) taper here.
2
If you want to exclude this control, jumper pads 1 & 2. I recommend including it because it's out of the circuit if
3
turned all the way down. Extra space has been provided in case you want to use the larger 3386 trimmer.
Prior to February 2017, all versions of the DS-830 schematic had C2 at 39n and the Bass pot at 5kB. C2
2
should instead be 3n9 and the Bass pot should be 25kB.
Additional Part Notes
• Capacitors are shown in nanofarads (n or nF) where appropriate. 1000n = 1uF. Many online suppliers do
not use nanofarads, so you'll often have to look for 0.047uF instead of 47n, 0.0056uF instead of 5n6, etc.
• The PCB layout assumes the use of film capacitors with 5mm lead spacing for all values 1nF through
470nF. I prefer
EPCOS box film
• I recommend using
the board and prevent shorts. If you don't use these, use some electrical tape or cardboard to act as
insulation. The right-angle pots will make direct contact with the solder pads otherwise.
MAXON DS-830 DISTORTION MASTER / NEBULA DISTORTION
electro
electro
or
Panasonic
these dust covers / insulators
Resistors, cont.
R4
10k
R5
100k
R6
2k
R7
390R
R8
1k
R9
10k
R10
100k
R11
3k9
R12
220R
R13
10k
R14
10k
R15
560R
R16
10k
R17
22k
R18
3k
R19
510k
R20
10k
R21
100k
R22
470R
R23
10k
R24
10k
RPD
2M2
LEDR
4k7
ECQ-B/V-series.
from Small Bear to insulate the back of the pots from
Semiconductors
Q1
2N5457
Q2–Q4
2N5088
IC1
JRC4558D
D1
1N4002
D2, D5
1N914
D3–D4
jumper
1
D6–D7
1N914
LED
5mm LED
Potentiometers
Gain
250kA
2
Level
100kA
Bass
25kB
4
Treble
10kB
Soft
10k trim
(3362P)
3
2