Enclosure not stated · 5 knobs

EFM Envelope Generator

Category: Wah / Envelope· ADSR Generators and Envelope Generators
Controls: Attack · Decay · Release · Sustain · Range
Price: see vendor
Tags: ADSR Generators and Envelope Generators

Open the schematic at Experimentalists Anonymous

Schematic

The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.

Parts list 38 rows

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Ref	Value	Normalized	Type	Notes
Resistors 16
R1	1M	1M		read from the schematic by eye
R2	100K	100k		read from the schematic by eye
R3	100K	100k		read from the schematic by eye
R4	1M	1M		read from the schematic by eye
R5	100K	100k		read from the schematic by eye
R6	1M	1M		read from the schematic by eye
R7	100K	100k		read from the schematic by eye
R8	100K	100k		read from the schematic by eye
R9	100	100		read from the schematic by eye
R10	4.7K	4.7k		read from the schematic by eye
R11	1K	1k		read from the schematic by eye
R12	1K	1k		read from the schematic by eye
R13	1K	1k		read from the schematic by eye
R14	100K	100k		listed twice in the parts list; one part on the schematic; read from the schematic by eye
R15	4.7K	4.7k		4.7K for +/-12V, 6.8K for +/-15V; read from the schematic by eye
R16	1K	1k		LED resistor; read from the schematic by eye
Capacitors 7
C1	0.1uF	100n		read from the schematic by eye
C2	0.1uF	100n		read from the schematic by eye
C3	0.1uF	100n		read from the schematic by eye
C4	.01uF	10n		read from the schematic by eye
C5	100uF	100u		25V; read from the schematic by eye
C6	.05uF	50n		read from the schematic by eye
C7	4.7uF	4.7u		16V; read from the schematic by eye
Diodes 3
D1	1N914	1N914		read from the schematic by eye
D2	1N914	1N914		read from the schematic by eye
D3	1N914	1N914		read from the schematic by eye
ICs 4
U1	4001	4001		CD4001 quad NOR; read from the schematic by eye
U2	4066	4066		CD4066 quad switch; read from the schematic by eye
U3	LM555	LM555		read from the schematic by eye
U4	TL072	TL072		read from the schematic by eye
Potentiometers 5
Attack	1M	1M	Potentiometer	read from the schematic by eye
Decay	1M	1M	Potentiometer	read from the schematic by eye
Release	1M	1M	Potentiometer	read from the schematic by eye
Sustain	10K	10k	Potentiometer	read from the schematic by eye
Range	50K	50k	Potentiometer	output level; read from the schematic by eye
Switches 2
ADSR/LFO	DPDT	DPDT		EG / AD-LFO mode; read from the schematic by eye
Gate/Trigger	DPDT	DPDT		Gate-ADSR / Trigger-AD; read from the schematic by eye
LEDs 1
LED	LED	LED		read from the schematic by eye