Enclosure not stated · 3 knobs

Nobels DT-1

Based on the Nobels DT-1· 2 other boards clone it

Category: Distortion· Distortion Boost and Overdrive
Controls: Distortion · Tone · Level
Price: see vendor
Tags: Distortion Boost and Overdrive

Open the schematic at Experimentalists Anonymous

Schematic

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Parts list 80 rows

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ocr read from an image · sch paired from the schematic · fixed corrected by hand. Check marked values against the build document.

Ref	Value	Normalized	Type	Notes
Resistors 33
R1	33K	33k		read from the schematic by eye
R2	1M	1M		read from the schematic by eye
R3	3K3	3.3k		read from the schematic by eye
R4	330K	330k		read from the schematic by eye
R5	330K	330k		read from the schematic by eye
R10	22K	22k		read from the schematic by eye
R11	3K3	3.3k		read from the schematic by eye
R12	10K	10k		read from the schematic by eye
R13	3K3	3.3k		read from the schematic by eye
R14	390K	390k		read from the schematic by eye
R20	15K	15k		read from the schematic by eye
R21	68K	68k		read from the schematic by eye
R22	10K	10k		read from the schematic by eye
R30	200K	200k		read from the schematic by eye
R31	10K	10k		read from the schematic by eye
R32	330K	330k		read from the schematic by eye
R33	330K	330k		read from the schematic by eye
R34	330K	330k		read from the schematic by eye
R40	200K	200k		read from the schematic by eye
R41	2K2	2.2k		read from the schematic by eye
R42	200K	200k		read from the schematic by eye
R101	470K	470k		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	1M	1M		read from the schematic by eye
R105	1K5	1.5k		read from the schematic by eye
R107	1M	1M		read from the schematic by eye
R108	1M	1M		read from the schematic by eye
R109	1M	1M		read from the schematic by eye
R110	2K2	2.2k		read from the schematic by eye
R201	18k	18k		read from the schematic by eye
R202	18k	18k		read from the schematic by eye
R203	100	100		read from the schematic by eye
Capacitors 24
C1	0.22µFfixed	220n		unit not drawn; sheet note: unspecified capacitors in uF; read from the schematic by eye
C10	33N	33n		read from the schematic by eye
C11	0.68µFfixed	680n		unit not drawn; sheet note: unspecified capacitors in uF; read from the schematic by eye
C12	1N5	1.5n		read from the schematic by eye
C13	2N2	2.2n		read from the schematic by eye
C14	68N	68n		read from the schematic by eye
C15	330P	330p		read from the schematic by eye
C20	68N	68n		read from the schematic by eye
C21	4N7	4.7n		read from the schematic by eye
C22	150N	150n		read from the schematic by eye
C23	1µFfixed	1u		electrolytic; unit not drawn; sheet note: unspecified capacitors in uF; read from the schematic by eye
C24	1µFfixed	1u		electrolytic; unit not drawn; sheet note: unspecified capacitors in uF; read from the schematic by eye
C30	33N	33n		read from the schematic by eye
C31	1µFfixed	1u		electrolytic; unit not drawn; sheet note: unspecified capacitors in uF; read from the schematic by eye
C40	1µFfixed	1u		electrolytic; unit not drawn; sheet note: unspecified capacitors in uF; read from the schematic by eye
C41	3.3µFfixed	3.3u		electrolytic; unit not drawn; sheet note: unspecified capacitors in uF; read from the schematic by eye
C101	1N	1n		read from the schematic by eye
C102	10N	10n		read from the schematic by eye
C103	47N	47n		read from the schematic by eye
C104	47N	47n		read from the schematic by eye
C105	47N	47n		read from the schematic by eye
C201	220µFfixed	220u		electrolytic; unit not drawn; sheet note: unspecified capacitors in uF; read from the schematic by eye
C202	220µFfixed	220u		electrolytic; unit not drawn; sheet note: unspecified capacitors in uF; read from the schematic by eye
C203	47µFfixed	47u		electrolytic; unit not drawn; sheet note: unspecified capacitors in uF; read from the schematic by eye
Diodes 8
D1	1N4148fixed	1N4148		1N4148; read from the schematic by eye
D4	1N4148fixed	1N4148		1N4148; read from the schematic by eye
D5	1N4148fixed	1N4148		1N4148; read from the schematic by eye
D6	1N4148fixed	1N4148		1N4148; read from the schematic by eye
D7	1N4148fixed	1N4148		1N4148; read from the schematic by eye
D8	1N4148fixed	1N4148		1N4148; read from the schematic by eye
D101	1N4148fixed	1N4148		1N4148; read from the schematic by eye
D201	1N4001fixed	1N4001		1N4001; reverse-polarity protection; read from the schematic by eye
Transistors 7
Q1	BC264D	BC264D		N-channel JFET; read from the schematic by eye
Q2	K222E	2SK222E		JFET (2SK222E); read from the schematic by eye
Q3	K222E	2SK222E		JFET (2SK222E); read from the schematic by eye
Q4	C1571G	2SC1571G		NPN (2SC1571G); read from the schematic by eye
Q5	K222E	2SK222E		JFET (2SK222E); read from the schematic by eye
Q6	K30A-Y	2SK30A-Y		JFET switch (2SK30A-Y); read from the schematic by eye
Q7	K30A-Y	2SK30A-Y		JFET switch (2SK30A-Y); read from the schematic by eye
ICs 2
U1	4558S	4558S		dual op amp (JRC4558); read from the schematic by eye
U101	4007fixed	4007		CD4007 / MC14007, bypass flip-flop; read from the schematic by eye
Potentiometers 3
Distortion	B250K	B250k	Potentiometer	drawn 250KB; read from the schematic by eye
Tone	B50K	B50k	Potentiometer	drawn 50KB; read from the schematic by eye
Level	A50K	A50k	Potentiometer	drawn 50KA; read from the schematic by eye
LEDs 3
D2	Red LEDfixed	RED LED		clipping diodes; read from the schematic by eye
D3	Red LEDfixed	RED LED		clipping diodes; read from the schematic by eye
×1	LED/Green	LED/GREEN		low-current LED/Green on the pot PCB (JP1 pins 10/11), no designator; read from the schematic by eye

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