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Schematic

Check before you build · 1 value the reader of this schematic was not sure of

R2: small rotated text, reads 100 ohm (could be 100k but the suffix looks like an ohm sign)

Ref	Value	Normalized	Notes
Resistors 9
R1	10k	10k	read from the schematic by eye
R2	100Ω	100	rotated text, ohm sign drawn; read from the schematic by eye
R3	1k5	1.5k	read from the schematic by eye
R4	15k	15k	read from the schematic by eye
R5	10k	10k	read from the schematic by eye
R6	100k	100k	read from the schematic by eye
R7	1M	1M	read from the schematic by eye
R8	1k5	1.5k	read from the schematic by eye
R9	100k	100k	read from the schematic by eye
Capacitors 8
C1	10uF	10u	16V electrolytic; read from the schematic by eye
C2	1uF	1u	read from the schematic by eye
C3	1uF	1u	read from the schematic by eye
C4	12n	12n	marked # : f-3dB = 130Hz, see text; read from the schematic by eye
C5	100n	100n	supply decoupling; read from the schematic by eye
C6	100n	100n	supply decoupling; read from the schematic by eye
C7	100n	100n	supply decoupling; read from the schematic by eye
C8	100n	100n	supply decoupling; read from the schematic by eye
Diodes 1
D1	1N4148	1N4148	read from the schematic by eye
Transistors 1
T1	BF245C	BF245C	N-channel JFET used as variable resistor; read from the schematic by eye
ICs 2
IC1	TL072	TL072	A1, A2; read from the schematic by eye
IC2	TL071	TL071	read from the schematic by eye
Trimmers 1
P1	100k	100k	multi-turn (Mehrgang) preset; read from the schematic by eye