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Ibanez PQL Parametric EQ

Based on the Ibanez PQL Parametric EQ

Category: EQ / Filter· Tone Control and EQs
Price: see vendor
Tags: Tone Control and EQs

Open the schematic at Experimentalists Anonymous

Schematic

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Parts list 103 rows

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Ref	Value	Normalized	Type	Notes
Resistors 54
R1	1k	1k		read from the schematic by eye
R2	470	470		read from the schematic by eye
R3	4k7	4.7k		read from the schematic by eye
R4	510k	510k		read from the schematic by eye
R5	27k	27k		read from the schematic by eye
R6	3k3	3.3k		read from the schematic by eye
R7	100k	100k		read from the schematic by eye
R8	20k	20k		read from the schematic by eye
R9	9k1	9.1k		read from the schematic by eye
R10	27k	27k		read from the schematic by eye
R11	3k3	3.3k		read from the schematic by eye
R12	9k1	9.1k		read from the schematic by eye
R13	27k	27k		read from the schematic by eye
R14	510k	510k		read from the schematic by eye
R15	510k	510k		read from the schematic by eye
R16	510k	510k		read from the schematic by eye
R17	510k	510k		read from the schematic by eye
R18	4k7	4.7k		read from the schematic by eye
R19	470	470		read from the schematic by eye
R20	470	470		read from the schematic by eye
R21	100k	100k		read from the schematic by eye
R22	1M	1M		read from the schematic by eye
R23	1M	1M		read from the schematic by eye
R24	22k	22k		read from the schematic by eye
R25	10k	10k		read from the schematic by eye
R26	56k	56k		read from the schematic by eye
R27	56k	56k		read from the schematic by eye
R28	22	22		read from the schematic by eye
R29	1M	1M		read from the schematic by eye
R30	62k	62k		read from the schematic by eye
R31	22k	22k		read from the schematic by eye
R32	100	100		read from the schematic by eye
R33	1M	1M		read from the schematic by eye
R34	2k7	2.7k		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	820	820		read from the schematic by eye
R38	820	820		read from the schematic by eye
R39	10k	10k		read from the schematic by eye
R40	680	680		read from the schematic by eye
R41	10k	10k		read from the schematic by eye
R42	10k	10k		read from the schematic by eye
R43	680	680		read from the schematic by eye
R44	10k	10k		read from the schematic by eye
R45	10k	10k		read from the schematic by eye
R46	20k	20k		read from the schematic by eye
R47	20k	20k		read from the schematic by eye
R48	20k	20k		read from the schematic by eye
R49	3k	3k		read from the schematic by eye
R50	3k	3k		read from the schematic by eye
R51	15k	15k		read from the schematic by eye
R52	27k	27k		read from the schematic by eye
RX1	100k	100k		read from the schematic by eye
RX2	100k	100k		read from the schematic by eye
Capacitors 29
C1	100n	100n		read from the schematic by eye
C2	10n	10n		read from the schematic by eye
C3	30p	30p		read from the schematic by eye
C4	2.2uF	2.2u		electrolytic, 50V; read from the schematic by eye
C5	100n	100n		read from the schematic by eye
C6	2.2uF	2.2u		electrolytic, 50V; read from the schematic by eye
C7	30p	30p		read from the schematic by eye
C8	2.2uF	2.2u		electrolytic, 50V; read from the schematic by eye
C9	2.2uF	2.2u		electrolytic, 50V; read from the schematic by eye
C10	10n	10n		read from the schematic by eye
C11	10uF	10u		electrolytic, 16V; read from the schematic by eye
C12	47n	47n		read from the schematic by eye
C13	47n	47n		read from the schematic by eye
C14	1n	1n		read from the schematic by eye
C15	1n	1n		read from the schematic by eye
C16	1n	1n		read from the schematic by eye
C17	39n	39n		read from the schematic by eye
C18	39n	39n		read from the schematic by eye
C19	100n	100n		read from the schematic by eye
C20	10n	10n		read from the schematic by eye
C21	2.2uF	2.2u		electrolytic, 50V; read from the schematic by eye
C22	10uF	10u		electrolytic, 16V; read from the schematic by eye
C23	10uF	10u		electrolytic, 16V; read from the schematic by eye
C24	100uF	100u		electrolytic, 16V; read from the schematic by eye
C25	47uF	47u		electrolytic, 6.3V; read from the schematic by eye
C26	30p	30p		read from the schematic by eye
C27	2.2uF	2.2u		electrolytic, 50V; read from the schematic by eye
CX1	1n	1n		read from the schematic by eye
CX2	1n	1n		read from the schematic by eye
Diodes 5
D1	Diode	DIODE		no part number given; read from the schematic by eye
D2	Diode	DIODE		no part number given; read from the schematic by eye
D3	Diode	DIODE		no part number given; read from the schematic by eye
D4	1N4001	1N4001		polarity protection; read from the schematic by eye
D5	4.7V	4V7		zener; read from the schematic by eye
Transistors 5
Q1	2SK118-O	2SK118-O		JFET bypass switch; read from the schematic by eye
Q2	2SK118-O	2SK118-O		JFET bypass switch; read from the schematic by eye
Q3	2SC2458GR	2SC2458GR		flip-flop; read from the schematic by eye
Q4	2SC2458GR	2SC2458GR		flip-flop; read from the schematic by eye
Q5	2SC2458GR	2SC2458GR		LED driver; read from the schematic by eye
ICs 4
U1	JRC4558D	JRC4558D		read from the schematic by eye
U2	JRC4558D	JRC4558D		read from the schematic by eye
U3	JRC4558D	JRC4558D		read from the schematic by eye
U4	JRC4558D	JRC4558D		read from the schematic by eye
Potentiometers 5
Low	50KB	B50k	Potentiometer	VR1; read from the schematic by eye
Mid	50KB	B50k	Potentiometer	VR2, drawn 50Kb; read from the schematic by eye
Hi	50KB	B50k	Potentiometer	VR3; read from the schematic by eye
Freq	50KC	C50k	Potentiometer	VR4, dual gang (VR4.A/VR4.B); read from the schematic by eye
Q	50KA	A50k	Potentiometer	VR5, dual gang (VR5.A/VR5.B); read from the schematic by eye
LEDs 1
D6	red	RED		read from the schematic by eye