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1
P101A
1M LG
ATTACK
COLUMN1
A
+12V
P101D
1M LG
RELEASE
COLUMN1
0V
+12V
P103
200K
B
TP1
P101C
8
100K LN
SUSTAIN
0V
C
D
1
2
U103B
4053
2
3
1
1
U103C
4053
12
10
5
3
P101B
1M LG
DECAY
2
1
6
4
3
U101A
LM358
2
R101
10R
15
C101
4u7 35V
ATTACK
0V
4
Control Stage
GATE
ENVELOPE
+12V
U103A
11
4053
9 Follan Close
Kariong
NSW 2250
Australia
3
U101B
LM358
5
7
6
D106
1N4148
R108
1K5
6
5
0V
R109
680R
ADSR
R118
680R
0V
R107
1K5
IMPORTANT NOTICE:
Information disclosed by this drawing is the property of ELBY Designs.
Duplication or manufacturing rights granted by written permission only.
ASM301 - ADSR
Envelope Generator
Size
FCSM No.
DWG No.
A4
30/04/2020
asm301-envelope.schdoc
Scale
Laurie Biddulph
3
4
D105
ENVELOPE
A
7
U105B
LM358
J103
B
ADSR (0-5)
PGND
D104
GATE
C
0V
D
Rev
0.3
Sheet
2
of
4
4
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