Enclosure not stated · 8 knobs

Synbal

Category: Ring Mod / Synth· Full Synths Drum Synths and Misc Synth
Controls: Decay · Sweep · Frequency · Mix · Resonance · Volume · Pan · Tune
Price: see vendor
Tags: Full Synths Drum Synths and Misc Synth

Open the schematic at Experimentalists Anonymous

Schematic

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Parts list 91 rows

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Check before you build · 4 values the reader of this schematic was not sure of

R5: list 68R vs schematic 680R
R38: list 33k vs schematic 100k
RV3/RV4: list 100k vs schematic 10k
RV9: value from schematic only

Ref	Value	Normalized	Type	Notes
Resistors 52
R1	47k	47k		read from the schematic by eye
R2	47k	47k		read from the schematic by eye
R3	2M2	2.2M		read from the schematic by eye
R4	10k	10k		read from the schematic by eye
R5	68R	68		parts list 68R; schematic shows 680R; read from the schematic by eye
R6	22k	22k		read from the schematic by eye
R7	22k	22k		read from the schematic by eye
R8	220k	220k		read from the schematic by eye
R9	10k	10k		read from the schematic by eye
R10	10k	10k		read from the schematic by eye
R11	10k	10k		read from the schematic by eye
R12	22k	22k		read from the schematic by eye
R13	10k	10k		read from the schematic by eye
R14	1k	1k		read from the schematic by eye
R15	1k	1k		read from the schematic by eye
R16	4k7	4.7k		read from the schematic by eye
R17	22k	22k		read from the schematic by eye
R18	1k	1k		read from the schematic by eye
R19	1k	1k		read from the schematic by eye
R20	4k7	4.7k		read from the schematic by eye
R21	10k	10k		read from the schematic by eye
R22	100k	100k		read from the schematic by eye
R23	47k	47k		read from the schematic by eye
R24	1k	1k		read from the schematic by eye
R25	100k	100k		read from the schematic by eye
R26	1k	1k		read from the schematic by eye
R27	22k	22k		read from the schematic by eye
R28	1k	1k		read from the schematic by eye
R29	10k	10k		read from the schematic by eye
R30	100k	100k		read from the schematic by eye
R31	220k	220k		read from the schematic by eye
R32	330k	330k		read from the schematic by eye
R33	390k	390k		read from the schematic by eye
R34	470k	470k		read from the schematic by eye
R35	560k	560k		read from the schematic by eye
R36	100k	100k		read from the schematic by eye
R37	100k	100k		read from the schematic by eye
R38	33k	33k		parts list 33k; schematic shows 100k; read from the schematic by eye
R39	150k	150k		read from the schematic by eye
R40	47k	47k		read from the schematic by eye
R41	4k7	4.7k		read from the schematic by eye
R42	2M2	2.2M		read from the schematic by eye
R43	47k	47k		read from the schematic by eye
R44	47k	47k		read from the schematic by eye
R45	100k	100k		read from the schematic by eye
R101	100k	100k		read from the schematic by eye
R102	100k	100k		read from the schematic by eye
R103	100k	100k		read from the schematic by eye
R104	100k	100k		read from the schematic by eye
R105	220k	220k		read from the schematic by eye
R106	220k	220k		read from the schematic by eye
R107	100k	100k		read from the schematic by eye
Capacitors 19
C1	22nF	22n		polycarbonate; read from the schematic by eye
C2	2u2	2.2u		63V axial electrolytic; read from the schematic by eye
C3	1nF	1n		ceramic; read from the schematic by eye
C4	1nF	1n		ceramic; read from the schematic by eye
C5	1uF	1u		63V axial electrolytic; read from the schematic by eye
C6	1uF	1u		63V axial electrolytic; read from the schematic by eye
C7	4u7	4.7u		63V axial electrolytic; read from the schematic by eye
C8	10nF	10n		polycarbonate; read from the schematic by eye
C9	10nF	10n		polycarbonate; read from the schematic by eye
C10	10nF	10n		polycarbonate; read from the schematic by eye
C11	10nF	10n		polycarbonate; read from the schematic by eye
C12	10nF	10n		polycarbonate; read from the schematic by eye
C13	10nF	10n		polycarbonate; read from the schematic by eye
C14	100nF	100n		polycarbonate; read from the schematic by eye
C15	100nF	100n		polycarbonate; read from the schematic by eye
C16	10nF	10n		polycarbonate; read from the schematic by eye
C17	4u7	4.7u		63V axial electrolytic; read from the schematic by eye
C18	10uF	10u		25V axial electrolytic; read from the schematic by eye
C101	1uF	1u		63V axial electrolytic; read from the schematic by eye
Diodes 1
D1	1N4148	1N4148		read from the schematic by eye
Transistors 1
TR1	BC108B	BC108B		reverse-biased base-emitter junction as noise source; read from the schematic by eye
ICs 7
IC1	LM324	LM324		or 3403; read from the schematic by eye
IC2	LM13600	LM13600		read from the schematic by eye
IC3	CA3080	CA3080		read from the schematic by eye
IC4	741	741		read from the schematic by eye
IC5	CD40106	CD40106		read from the schematic by eye
IC6	CD4070	CD4070		read from the schematic by eye
IC101	TL1458	TL1458		or 4558; final stereo mixer, fitted on one board per system; read from the schematic by eye
Potentiometers 8
Decay	1M	1M	Potentiometer	RV2; read from the schematic by eye
Sweep	100k	100k	Potentiometer	RV3; parts list 100k, schematic shows 10k; read from the schematic by eye
Frequency	100k	100k	Potentiometer	RV4; parts list 100k, schematic shows 10k; read from the schematic by eye
Mix	100k	100k	Potentiometer	RV5 (Noise/Metallic); read from the schematic by eye
Resonance	470k	470k	Potentiometer	RV6; read from the schematic by eye
Volume	47k	47k	Potentiometer	RV7; read from the schematic by eye
Pan	100k	100k	Potentiometer	RV8; read from the schematic by eye
Tune	10k	10k	Potentiometer	RV9; on the schematic and overlay, missing from the parts list; read from the schematic by eye
Trimmers 1
Sensitivity	47k	47k		RV1, horizontal preset; read from the schematic by eye
Switches 1
S1	4P3T	4P3T		HP/BP/LP; 3-way 4-pole slide switch (Maplin FH38R); read from the schematic by eye
LEDs 1
D2	LED	LED		envelope indicator; read from the schematic by eye