资料介绍
知名日企平衡与不平衡麦克风都适用的电路D
D
C15 D1 R4
C +12V
68pF 50V 0.1uF 50V
C4
4.7uF 50V
3 +
2
C6
1
R11
1k 0.5%
2 3
R6
100k 0.5%
U1A
UNBAL -59dBV BAL -59dBV
0.1uF 50V
100k 0.5%
100k 0.5%
COLD
4.7uF 50V 68pF 50V
3 1
C7
100 0.5% 470k 470k
2
1k 0.5% 100k 0.5%
3
HOT
R3 C2 R2 R1
68pF 50V
C3
D2
R12
+
JK1
100 0.5%
6 5 4 2 3 7 8 9 1
C17
4.7uF 50V
C
1
+
R5
VR2
68pF 50V
C12
2
R7
C16
C14
R8
-12V
MIC
1
out
MIC-IN
GND
4.7uF 50V
+
Gain=20lg(R6/(R11+R4))=39dB
B
B
A
A
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