Enclosure not stated · 3 knobs

Morley Emerald echo

Based on the Morley Emerald echo

Category: Delay· Delay Echo and Samplers
Controls: Repeat · Mix · Delay
Price: see vendor
Tags: Delay Echo and Samplers

Open the schematic at Experimentalists Anonymous

Schematic

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

Parts list 89 rows

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Ref	Value	Normalized	Type	Notes
Resistors 37
R1	2.2K	2.2k		read from the schematic by eye
R2	470K	470k		read from the schematic by eye
R5	68K	68k		read from the schematic by eye
R6	6.8K	6.8k		read from the schematic by eye
R7	15K	15k		read from the schematic by eye
R8	15K	15k		read from the schematic by eye
R9	8.2K	8.2k		read from the schematic by eye
R10	8.2K	8.2k		read from the schematic by eye
R11	10K	10k		read from the schematic by eye
R12	8.2K	8.2k		read from the schematic by eye
R13	10K	10k		read from the schematic by eye
R14	10K	10k		read from the schematic by eye
R15	100K	100k		read from the schematic by eye
R16	120K	120k		read from the schematic by eye
R17	120K	120k		read from the schematic by eye
R18	10K	10k		read from the schematic by eye
R19	10K	10k		read from the schematic by eye
R20	10K	10k		read from the schematic by eye
R21	10K	10k		read from the schematic by eye
R22	12K	12k		read from the schematic by eye
R23	10K	10k		read from the schematic by eye
R24	10K	10k		read from the schematic by eye
R25	10K	10k		read from the schematic by eye
R26	12K	12k		read from the schematic by eye
R27	1.5K	1.5k		read from the schematic by eye
R28	10K	10k		read from the schematic by eye
R29	15K	15k		read from the schematic by eye
R30	1.5K	1.5k		read from the schematic by eye
R31	820	820		read from the schematic by eye
R32	100K	100k		read from the schematic by eye
R33	6.8K	6.8k		LED resistor; read from the schematic by eye
R34	10K	10k		read from the schematic by eye
R35	10K	10k		read from the schematic by eye
R36	10K	10k		read from the schematic by eye
R37	56K	56k		read from the schematic by eye
R38	680	680		read from the schematic by eye
R39	10K	10k		read from the schematic by eye
Capacitors 34
C1	.01uF	10n		read from the schematic by eye
C3	.0022uF	2.2n		read from the schematic by eye
C4	1uF	1u		electrolytic, 50V; read from the schematic by eye
C5	1uF	1u		electrolytic, 50V; read from the schematic by eye
C6	1uF	1u		electrolytic, 50V; read from the schematic by eye
C7	.47uF	470n		electrolytic, 50V; read from the schematic by eye
C8	100pF	100p		read from the schematic by eye
C9	2.2uF	2.2u		electrolytic, 50V; read from the schematic by eye
C10	1uF	1u		electrolytic, 50V; read from the schematic by eye
C11	.047uF	47n		read from the schematic by eye
C12	.0015uF	1.5n		read from the schematic by eye
C13	1uF	1u		non-polarized, 50V; read from the schematic by eye
C14	.01uF	10n		read from the schematic by eye
C15	.0033uF	3.3n		read from the schematic by eye
C16	.0033uF	3.3n		read from the schematic by eye
C17	.01uF	10n		read from the schematic by eye
C18	680pF	680p		read from the schematic by eye
C19	.0015uF	1.5n		read from the schematic by eye
C20	.01uF	10n		read from the schematic by eye
C21	2.2uF	2.2u		electrolytic, 50V; read from the schematic by eye
C22	100pF	100p		read from the schematic by eye
C23	.68uF	680n		tantalum; read from the schematic by eye
C24	1uF	1u		electrolytic, 50V; read from the schematic by eye
C25	.01uF	10n		read from the schematic by eye
C26	2.2uF	2.2u		electrolytic, 50V; read from the schematic by eye
C27	.01uF	10n		read from the schematic by eye
C28	1uF	1u		electrolytic, 50V; read from the schematic by eye
C29	220uF	220u		electrolytic, 16V; read from the schematic by eye
C30	10uF	10u		electrolytic, 50V; read from the schematic by eye
C31	2.2uF	2.2u		electrolytic, 50V; read from the schematic by eye
C32	33pF	33p		read from the schematic by eye
C33	1uF	1u		electrolytic, 50V; read from the schematic by eye
C34	1uF	1u		electrolytic, 50V; read from the schematic by eye
C35	.1uF	100n		footswitch lug to chassis; read from the schematic by eye
Diodes 4
D1	1N4003	1N4003		read from the schematic by eye
D2	1N4148	1N4148		drawn '1N4148'S' for D2-D4; read from the schematic by eye
D3	1N4148	1N4148		read from the schematic by eye
D4	1N4148	1N4148		read from the schematic by eye
Transistors 4
T1	MPSA12	MPSA12		Darlington; read from the schematic by eye
T2	2N5087	2N5087		read from the schematic by eye
T3	MPSA12	MPSA12		Darlington; read from the schematic by eye
T4	MPSA12	MPSA12		Darlington; read from the schematic by eye
ICs 4
U1	TL072	TL072		read from the schematic by eye
U2	NE571	NE571		compandor; read from the schematic by eye
U3	MN3205	MN3205		4096-stage BBD; read from the schematic by eye
U4	MN3102	MN3102		BBD clock; read from the schematic by eye
Potentiometers 3
Repeat	B100K	B100k	Potentiometer	P1; read from the schematic by eye
Mix	B10K	B10k	Potentiometer	P2; read from the schematic by eye
Delay	B1M	B1M	Potentiometer	P3, drawn 'B1Meg'; read from the schematic by eye
Trimmers 2
TP1	25K	25k		Repeat Set; read from the schematic by eye
TP3	25K	25k		Clock Balance; read from the schematic by eye
LEDs 1
L1	LED	LED		Echo On indicator; read from the schematic by eye