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PU/LINE
RY1
SK01
C01
220p
D01
1N4148
CD
RY2
SK02
C02
220p
D02
1N4148
TUNER
RY3
SK03
C03
220p
D03
1N4148
REC
RY4
SK04
C04
220p
D04
1N4148
MONITOR
RY5
SK05
C05
220p
D05
1N4148
LINE OUT R
SK06
C06
RY6
220p
D06
1N4148
RIGHT INPUT / OUTPUT SECTION
AND AMPLIFIER SECTION
+5V
BC557
T01
R01
10K
Input1
+5V
BC557
T02
R02
10K
Input2
SK07
20
19
+5V
18
BC557
17
16
T03
15
14
13
R03
12
10K
11
10
Input3
9
8
7
6
+5V
5
BC557
4
3
T04
2
1
R05
10K
Input4
R04
+5V
1K
BC557
T05
R06
10K
Monitor
R07
Line out R
1K
+5V
BC557
T06
R08
Mute
10K
170v
47µ/350V
C32
130V - 100V
C17
2.2uF
RV1A
50K
7V -4V
R13
3K6 1%
R17
3K6 1%
Line out L
Input1
Input2
Input3
Input4
Monitor
Mute
+5V
47µ/350V
C34
C16
2.2uF
RV1B
50K
R23
R26
3K6 1%
Diagram
+300V
R14
100K
C31
R18
R12
47µ/350V
220V
ECC82
C18
V1
2
7
3
8
R16
680R
+12.5V
BC557
+5V
T08
RY8
D08
R19
10K
1N4148
+6dB
+300V
R24
100K
C33
R27
R22
47µ/350V
ECC82
C19 68n/630V
V2
2
7
3
8
R28
680R
3K6 1%
+12.5V
BC557
+5V
RY7
T07
D07
R25
10K
1N4148
+6dB
© Velleman Kit
68n/630V
115V
R10
1M
C21
4u7/160V
R11
R15
5K6
Line out L
R20
1M
C22
4u7/160V
R21
R29
5K6
Line out R
27
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