Enclosure not stated · 4 knobs

DOD FX102 MysticBlues

Based on the DOD FX102 MysticBlues

Category: Distortion· Distortion Boost and Overdrive
Controls: Drive · High · Low · Level
Price: see vendor
Tags: Distortion Boost and Overdrive

Open the schematic at Experimentalists Anonymous

Schematic

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Parts list 76 rows

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Check before you build · 8 values the reader of this schematic was not sure of

R2: 100 or 100K
R7: 70K reading odd
R9: designator overwritten
R14: 47K or 4.7K
R43: drawn 2011, taken as 20K
R53: 22K or 2.2K
C5: .2 or .02
C24: 120p or 170p

Ref	Value	Normalized	Type	Notes
Resistors 36
R2	100K	100k		drawn "100" with an H/K-like mark, to ground after C2; read from the schematic by eye
R3	470	470		read from the schematic by eye
R4	100	100		series output resistor; read from the schematic by eye
R5	20K	20k		read from the schematic by eye
R7	70K	70k		odd value, could be 20K or 10K; read from the schematic by eye
R8	20K	20k		read from the schematic by eye
R9	10K	10k		designator overwritten, reads R8 or R9; read from the schematic by eye
R11	47K	47k		read from the schematic by eye
R13	1M	1M		drawn "F13"; read from the schematic by eye
R14	47K	47k		could be 4.7K; read from the schematic by eye
R15	10K	10k		read from the schematic by eye
R16	47K	47k		read from the schematic by eye
R24	10K	10k		read from the schematic by eye
R29	100K	100k		read from the schematic by eye
R30	10K	10k		read from the schematic by eye
R32	100K	100k		read from the schematic by eye
R33	220K	220k		read from the schematic by eye
R36	10K	10k		read from the schematic by eye
R36	?	?		designator printed twice: a second R36 feeds D2 from pin 13 of U3, no value; read from the schematic by eye
R38	220K	220k		read from the schematic by eye
R39	22K	22k		read from the schematic by eye
R42	1M	1M		read from the schematic by eye
R43	20K	20k		drawn "2011"; read from the schematic by eye
R44	20K	20k		read from the schematic by eye
R45	33K	33k		read from the schematic by eye
R46	10K	10k		read from the schematic by eye
R47	1K	1k		read from the schematic by eye
R49	1K	1k		read from the schematic by eye
R50	1M	1M		read from the schematic by eye
R52	47K	47k		read from the schematic by eye
R53	22K	22k		drawn ".22 K"; could be 2.2K; read from the schematic by eye
R55	10K	10k		read from the schematic by eye
R59	100K	100k		read from the schematic by eye
R60	100K	100k		read from the schematic by eye
R61	10K	10k		read from the schematic by eye
R62	100K	100k		read from the schematic by eye
Capacitors 21
C2	1uF	1u		read from the schematic by eye
C3	50pF	50p		read from the schematic by eye
C4	.05uF	50n		input coupling; read from the schematic by eye
C5	.2uF	200n		drawn ".2", could be .02; read from the schematic by eye
C7	120pF	120p		read from the schematic by eye
C8	10uF	10u		drawn "10"; read from the schematic by eye
C10	.01uF	10n		read from the schematic by eye
C14	.05uF	50n		drawn again as C4 in the lower redraw; read from the schematic by eye
C16	1uF	1u		read from the schematic by eye
C17	.05uF	50n		on D2; a second cap at D8 is also labelled C17, no value; read from the schematic by eye
C19	1uF	1u		read from the schematic by eye
C22	.001uF	1n		read from the schematic by eye
C23	1uF	1u		electrolytic; read from the schematic by eye
C24	120pF	120p		could be 170p; read from the schematic by eye
C25	.02uF	20n		read from the schematic by eye
C26	.02uF	20n		read from the schematic by eye
C27	1uF	1u		read from the schematic by eye
C28	10uF	10u		electrolytic; read from the schematic by eye
C29	10uF	10u		drawn "10"; read from the schematic by eye
C30	10uF	10u		electrolytic, drawn "10u"; read from the schematic by eye
×1	50pF	50p		across R39, no designator; read from the schematic by eye
Diodes 5
D1	Diode	DIODE		no part number given; clipping pair; 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; clipping pair; read from the schematic by eye
D6	Diode	DIODE		no part number given; read from the schematic by eye
D8	Diode	DIODE		no part number given; read from the schematic by eye
Transistors 6
Q1	?	?		JFET switch; read from the schematic by eye
Q2	?	?		JFET switch; read from the schematic by eye
Q4	?	?		JFET input buffer; read from the schematic by eye
Q7	?	?		NPN LED driver; read from the schematic by eye
Q8	?	?		JFET switch; read from the schematic by eye
Q9	?	?		NPN emitter follower; read from the schematic by eye
ICs 3
U1	?	?		dual op amp; read from the schematic by eye
U2	?	?		op amp; a second unlabelled op amp section beside it; read from the schematic by eye
U3	?	?		referenced by pin only (pins 1,5,6,8,12,13): likely a CMOS switch; read from the schematic by eye
Potentiometers 4
Drive	?	?	Potentiometer	P1, no value; read from the schematic by eye
High	100K	100k	Potentiometer	P2; read from the schematic by eye
Low	?	?	Potentiometer	P3, no value; read from the schematic by eye
Level	?	?	Potentiometer	P4, no value; read from the schematic by eye
LEDs 1
D4	LED	LED		no part number given; read from the schematic by eye