Nilfisk-ALTO STEREO TUBE PREAMP - Manual (Page 12)

11
1
2
3
4
A B C D
4
3
2
1
D C B A
1 2 3 4 5 6 X1 X2 X3
2 1 3 4 2 1 3
22 11 33
BBlock
Diagram
U1(INA163)
TUBE-12AX7
2
1 3
2 3
22 33
2
1 3
1 2 3 4 5 6 X1 X2 X3
POWER
S
UPPL
Y
AC18V
+12VDC +15VDC -15VDC +48VDC
PHANT
O
M
CH1
MICROPHONE
INPUT
CH2
OUTPUT
2 1 3 4
PH
ASE
PH
ASE
+
P
AD(20dB)
CH1
MICROPHONE
INPUT
U2(INA163) +
P
AD(20dB)
VOL
TAGE
R
EGULA
TO
RUPPL
Y
CH1
OUTPUT
6. TECHNICAL SPECIFICATIONS
6.1 Block Diagram
1
11