Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
To Right Channel
R72
40k
V7
6W ww
E88CC
1k
R79
511
R80
1M
250VL PPN
C41
10uF
1k
750pF
S
G
+156
+160
styr
D
2N5462
0.01uF
630VL
20k
5W ww6k5W ww
V5
E88CC
styr
+37
1k
4545
V1(left) V2(right)
1k
V3
E88CC
+40
0V +12V
1nF
330pF 100pF
+0.92
C40
C39
2k74
3nF
8n2
R71
R70
Federico Paoletti
25k6
1M5
SP-10 PREAMPLIFIER
B sp10.sch
Date: March 31, 2002 Sheet of
Size Document Number REV
Title
B+3 (+293)
TIP41
2x1N914
76k8
511
D40K1
71
24V-5W
1N5359B
3
R73
270
2W
1k
1k
R69
562k
2uF
450VL
PPN
1N914
1M82
C37
+45
100k
To Right Channel
R63
40k
5W ww
27k5Www
B+4 (+293)
6
TL071
TIP41
2x1N914
76k8
2
45
1uF
450VL
1N914
1M82
2x0.22uF
100VL
100k
511
D40K1
6
TL071
71
3
2
45
1uF
450VL
V1
E88CC
16
27
100pF
styr
7
2
Lin
Input
8
3
27
56
1uH
R53
+0.95
C34
49k9
Gain = 46dB @ 1kHz
R46
150
2W
20pF
100pF
styr
+305
2uF
450VL
PPN
24V-5W
1N5359B
2x0.22uF
100VL
Page 9
To Right Channel
R13
100k
V11
6W ww
E88CC
1k
OUT
R17
511
250VL PPN
10uF
+139
1k
D
S
G
2N5462
0.01uF
630VL
styr
R16
475k
R14
25k
5W ww
R8
33k
Federico Paoletti
SP-10 PREAMPLIFIER
B sp10_2.sch
Date: March 31, 2002 Sheet of
Size Document Number REV
Title
B+1 (+293)
TIP41
76k8
511
D40K1
71
3x1N914
3
R9
C3
0.47uF
450VL
PPN
1M
Gain = 26 dB
1k
V9
+180
E88CC
R1
1k
Dal potenziometro di Volume
To Right Channel
B+2 (+293)
6
TL071
2
45
1uF
450VL
1M82
100k
TIP41
511
D40K1
71
3x1N914
3
+135
R5
300k
40k
6
TL071
45
2
1uF
450VL
+3.8
R12
C2
2k2
20pF
+6.3
R4
1k5
+305
24V-5W
1N5359B
2x0.22uF
100VL
2uF
450VL
PPN
76k8
24V-5W
1N5359B
1M82
2x0.22uF
100VL
100k
Page 10
+305
2uF
450VL
PPN
1
+15
V15
V13
10
10
6L6WGC
6L6WGC
243k
100
D21
1N4006
100
1nF
600VL
280k
2x
+15
1N914
.22uF
12k1
100VL
V?
V?
U3
4k99
3M3
ZD12
LM329B
5uF
200VDC
PPN
TL071
10V, 1W
1N4740
Federico Paoletti
Alimentatore HT SP10
A ALSP10.sch
Date: March 31, 2002 Sheet of
Size Document Number REV
Title
FUSE 1A
(min. 412V)
+550
(max. 618V)
200uF
2W
270k
47k
400VL
200uF
2W
270k
400VL
7x
47V
(1N4756)
Page 11
To Right Channel
R72
40k
V7
6W ww
E88CC
1k
R79
511
R80
1M
250VL PPN
C41
10uF
1k
750pF
S
G
+156
+160
styr
D
2N5462
0.01uF
630VL
20k
5W ww6k5W ww
V5
E88CC
styr
+37
1k
4545
V1(left) V2(right)
1k
V3
E88CC
+40
0V +12V
1nF
330pF 100pF
+0.92
C40
C39
2k74
3nF
8n2
R71
R70
Federico Paoletti
25k6
1M5
SP-10 PREAMPLIFIER
B sp10.sch
Date: March 31, 2002 Sheet of
Size Document Number REV
Title
B+3 (+293)
TIP41
2x1N914
76k8
511
D40K1
71
24V-5W
1N5359B
3
R73
270
2W
1k
1k
R69
562k
2uF
450VL
PPN
1N914
1M82
C37
+45
100k
To Right Channel
R63
40k
5W ww
27k5Www
B+4 (+293)
6
TL071
TIP41
2x1N914
76k8
2
45
1uF
450VL
1N914
1M82
2x0.22uF
100VL
100k
511
D40K1
6
TL071
71
3
2
45
1uF
450VL
V1
E88CC
16
27
100pF
styr
7
2
Lin
Input
8
3
27
56
1uH
R53
+0.95
C34
49k9
Gain = 46dB @ 1kHz
R46
150
2W
20pF
100pF
styr
+305
2uF
450VL
PPN
24V-5W
1N5359B
2x0.22uF
100VL
Page 12
To Right Channel
R13
100k
V11
6W ww
E88CC
1k
OUT
R17
511
250VL PPN
10uF
+139
1k
D
S
G
2N5462
0.01uF
630VL
styr
R16
475k
R14
25k
5W ww
R8
33k
Federico Paoletti
SP-10 PREAMPLIFIER
B sp10_2.sch
Date: March 31, 2002 Sheet of
Size Document Number REV
Title
B+1 (+293)
TIP41
76k8
511
D40K1
71
3x1N914
3
R9
C3
0.47uF
450VL
PPN
1M
Gain = 26 dB
1k
V9
+180
E88CC
R1
1k
Dal potenziometro di Volume
To Right Channel
B+2 (+293)
6
TL071
2
45
1uF
450VL
1M82
100k
TIP41
511
D40K1
71
3x1N914
3
+135
R5
300k
40k
6
TL071
45
2
1uF
450VL
+3.8
R12
C2
2k2
20pF
+6.3
R4
1k5
+305
24V-5W
1N5359B
2x0.22uF
100VL
2uF
450VL
PPN
76k8
24V-5W
1N5359B
1M82
2x0.22uF
100VL
100k
Page 13
+305
2uF
450VL
PPN
1
+15
V15
V13
10
10
6L6WGC
6L6WGC
243k
100
D21
1N4006
100
1nF
600VL
280k
2x
+15
1N914
.22uF
12k1
100VL
V?
V?
U3
4k99
3M3
ZD12
LM329B
5uF
200VDC
PPN
TL071
10V, 1W
1N4740
Federico Paoletti
Alimentatore HT SP10
A ALSP10.sch
Date: March 31, 2002 Sheet of
Size Document Number REV
Title
FUSE 1A
(min. 412V)
+550
(max. 618V)
200uF
2W
270k
47k
400VL
200uF
2W
270k
400VL
7x
47V
(1N4756)
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