Enclosure not stated

True Balanced Input Differential Amplifer

Schematic

Ref	Value	Normalized	Type	Notes
Resistors 12
R1	1K	1k		100 for mic preamp; read from the schematic by eye
R2	10K	10k		read from the schematic by eye
R3	4.7K	4.7k		read from the schematic by eye
R4	4.7K	4.7k		470 for mic preamp; read from the schematic by eye
R5	1K	1k		100 for mic preamp; read from the schematic by eye
R6	10K	10k		read from the schematic by eye
R7	4.7K	4.7k		read from the schematic by eye
R8	10K	10k		1K for mic preamp; read from the schematic by eye
R9	9.1K	9.1k		read from the schematic by eye
R10	10K	10k		1K for mic preamp; read from the schematic by eye
R11	10K	10k		read from the schematic by eye
R12	100	100		read from the schematic by eye
Capacitors 9
CIN1	10uF	10u		electrolytic; read from the schematic by eye
CIN2	10uF	10u		electrolytic; read from the schematic by eye
C1	100pF	100p		read from the schematic by eye
C2	51pF	51p		U1:A feedback; C2 is printed twice; read from the schematic by eye
C3	100pF	100p		read from the schematic by eye
C4	51pF	51p		U1:B feedback; C4 is printed twice; read from the schematic by eye
×2	51pF	51p		second C2 (across R9/RV1 at U2:B input) and second C4 (U2:B feedback); designators duplicated on the drawing; read from the schematic by eye
×2	10uF	10u		supply bypass, electrolytic; read from the schematic by eye
×2	0.1uF	100n		supply bypass; read from the schematic by eye
ICs 2
U1	5532	5532		NE5532 dual op amp, sections A and B; read from the schematic by eye
U2	5532	5532		NE5532, only section B drawn; read from the schematic by eye
Potentiometers 1
RV1	2K	2k	Potentiometer	gain/CMRR set, no name; read from the schematic by eye