Page 1
1N4003
CR7
J5
.1uF
+48-1
100uF
C11
"MIC INPUT"
3
"LINE INPUT"
J1
C33
VS1
C39
2200uF
16V
63V
21
R1
R2
4.7K
50V
8
4
1N914
CR19
TUBE1
7
8
10uFC26
8
4
R51
20K
+33V
NE5532
10KR40
+33V
39K
NE5532
C10
63V100uF
MPSA29
1
7
R71
C42
47uF
35V
3.3KR38
OUTPUT
LEVEL
10K
+33V
R39
C18
R58
47uF
47uF
100K
15V
1N5245B
CR21
ATTEN
Q14
Q4
25V
C17
25V
5.1M
R69
J113
CR22
1N914
2N4403
Q12
R74
100K
CR24
1N914
C25
10uF
50V
IN 0UT
(ON) (OFF)
CW
R77
4.7K
-
R41
10K
+
R65
CR18
R42
2K
DRAWN
R. Neatrour
ENGINEERING
MANUFACTURING
CHECKED
ISSUED
PLOTDATE
R72
300K
.33uF
1N914
CR23
R76
3.3K
R75
3.3K
COMPRESSOR SWITCH
100
10-31-2000
47uF
C32
DATEAPPROVALS
1N270
10/31/00
+21V
C44
50V
C43
1uF
50V
R73
10K
R70
1M
R9
300
IN
(REVERSE)
PHASE SWITCH
R66
R67
25V
2K
TUBE MP STUDIO
FILENAME
4.7K
R23
R8
300
Q13
J111
2N5088
1N914
R43
20K
CR16
C27
10uF
50V
R55
100K
"OUTPUTS"
J3
1
2
3
S
R11
300
300
R10
SW3
0UT
(NORMAL)
M1
300
+
1N914
CR17
APPLIED RESEARCH & TECHNOLOGY
215 TREMONT STREET
ROCHESTER, NY 14608
127S-1-1.SCH
GREEN=POWER
RED=CLIP
D1
GREEN
5.7V
Q5
LAMP2LAMP1
AC
SHEET
1OF1
RED
J4
21
3
-
REVDWGNO.SIZE
B127S4001-101
47uF
C41
C24
10uF
ATTEN
7
35V
R63
C35
.33uF
35V
+48V
330pF
C40
R22
20K
100uF
C34
3.3KR17
(MIC)IN
MIC/LINE GAIN SWITCH
25V
47uF
C23
+33V
20K
R47
22K
1KR36
100R16
R60
63V
39K
CR20
1N914
300K
10KR37
300K
R59
2K
R46
2
3
47uF
C37
R56
OUT
1
(LINE)
16V
4
SW2
TUBE
TUBE1
5.7V
2
3
R61
6
5
9
9
1MR54
-
U2
+
6
-
U2
5
+
TIP112
63V
330pF
10K
10uF
C38
10
C28
CR12
1N914
470uF
C7
50V
10
25V
330pF
C29
R27
20K
100uF
C8
1N914
CR11
1N914
CR13
R68
20K
63V
2N4401
R62
4.7K
R32
10K
Q3
1N5261B
VS
R44
20K
+IN
1N914
+33V
-IN
CR14
Q1
47V
CR15
R49
39K
7805
VR1
1N914
5.7V
C6
25V
10KR26
C1
C2
2200uF
16V
.1uF
C36
+48V
C4
25V
CR8
CR2
1N4003
CR1
1N4003
POWER SUPPLY INPUT
9VOLTS AC, .4AMPS
PHANTOM POWER SWITCH
470uF
1N4003
1000uF
35V
C3
SW1
CR4
1N4003
CR3
OUT
IN
R12
300
100uF
63V
100uF
63V
+33V
CR9
1N914
+33V
R52
100K
J2
R24
6.98K
1%
R25
6.98K
1%
1
2
C12
3
S
R19
R18
C13
4.7K
4.7K
470uF
VS1
C14
25V
CR10
470uF
C5
+21V
47uF
CR6
1N4003
CR5
1N4003
25V
47uF
C16
25V
100uF
C9
R29
10K
R30
R3
1N914
1K
R13
C15
25V
47uF
R4
5.1M
8
+33V
2
-
3
+
1
U1
TL072P
4
10uF
50V
C22
R31
10K
.1uF
1M
R64
10K
22K
Q6
2N4403
C19
220uF
Q8
2N4403
R20
4.7K
R48
R28
10K
C20
R6
150
+48V
10uF
6.3V
50V
Q9
2N4403
R21
4.7K
TIP112
Q2
+33V
10uF
50V
C21
+33V
R33
10K
100K
10KR57
R53
+40dB+0dB
Q10
INPUT
GAIN
1KR15
2N4403
150R5
Q11
1KR14
CW
50V
Q7
+33V
20KR45
39KR50
2N4403
100pF
C30
150
2N4403
R7
100pFC31
10KR35
8
+33V
6
-
U1
R34
10K
5
TL072P
+
4
VS
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