Enclosure not stated · 3 knobs

Nobels PRE-1

Based on the Nobels PRE-1 Preamp Booster· 1 other board clones it

Category: Other· Amplifiers and VCAs
Controls: Bass · Treble · Gain
Price: see vendor
Tags: Amplifiers and VCAs

Open the schematic at Experimentalists Anonymous

Schematic

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

Parts list 71 rows

Report a wrong parse

Got parts in a drawer? See what you can build with them.

Ref	Value	Normalized	Type	Notes
Resistors 31
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
R10	10K	10k		read from the schematic by eye
R11	2K2	2.2k		read from the schematic by eye
R20	8K2	8.2k		read from the schematic by eye
R21	1K5	1.5k		read from the schematic by eye
R22	100	100		read from the schematic by eye
R23	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	1M	1M		read from the schematic by eye
R106	510	510		read from the schematic by eye
R107	2K7	2.7k		read from the schematic by eye
R108	2K2	2.2k		read from the schematic by eye
R109	4K7	4.7k		read from the schematic by eye
R110	2K2	2.2k		read from the schematic by eye
R111	1M	1M		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 22
C10	3.3uF	3.3u		electrolytic; read from the schematic by eye
C11	47P	47p		read from the schematic by eye
C20	10uF	10u		electrolytic; read from the schematic by eye
C21	22N	22n		read from the schematic by eye
C22	39N	39n		read from the schematic by eye
C23	22N	22n		read from the schematic by eye
C24	12N	12n		read from the schematic by eye
C25	1uF	1u		electrolytic; read from the schematic by eye
C26	1N	1n		read from the schematic by eye
C30	56N	56n		read from the schematic by eye
C31	1uF	1u		electrolytic; read from the schematic by eye
C40	1uF	1u		electrolytic; read from the schematic by eye
C41	3.3uF	3.3u		electrolytic; 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	1uF	1u		electrolytic; read from the schematic by eye
C104	10uF	10u		electrolytic; read from the schematic by eye
C105	47N	47n		read from the schematic by eye
C106	47N	47n		read from the schematic by eye
C201	220uF	220u		electrolytic; read from the schematic by eye
C202	220uF	220u		electrolytic; read from the schematic by eye
C203	47uF	47u		electrolytic; read from the schematic by eye
Diodes 6
D2	1N4148	1N4148		drawn 4148; read from the schematic by eye
D3	1N4148	1N4148		drawn 4148; read from the schematic by eye
D5	1N4148	1N4148		drawn 4148; read from the schematic by eye
D6	1N4148	1N4148		drawn 4148; read from the schematic by eye
D101	1N4148	1N4148		drawn 4148; read from the schematic by eye
D201	1N4001	1N4001		drawn 4001; read from the schematic by eye
Transistors 6
Q1	BC264D	BC264D		N-JFET; read from the schematic by eye
Q2	2SK222E	2SK222E		N-JFET, drawn K222E; read from the schematic by eye
Q3	2SC2362G	2SC2362G		NPN, drawn C2362G; read from the schematic by eye
Q4	2SC2362G	2SC2362G		NPN, drawn C2362G; read from the schematic by eye
Q5	2SK30A-Y	2SK30A-Y		N-JFET switch, drawn K30A-Y; read from the schematic by eye
Q6	2SK30A-Y	2SK30A-Y		N-JFET switch, drawn K30A-Y; read from the schematic by eye
ICs 2
U1	4558S	4558S		dual op amp; read from the schematic by eye
U101	4007	4007		CD4007 CMOS, flip-flop for the electronic bypass; read from the schematic by eye
Potentiometers 3
Bass	B50K	B50k	Potentiometer	P1, 50KB; read from the schematic by eye
Treble	B50K	B50k	Potentiometer	P2, 50KB; read from the schematic by eye
Gain	A100K	A100k	Potentiometer	P3, 100KA; read from the schematic by eye
LEDs 1
D1	3mm Green	3MM GREEN		low-current; read from the schematic by eye

Other boards based on the Nobels PRE-1 Preamp Booster

Nobels PRE-1 Preamp Booster Dirtbox Layouts