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BILL OF MATERIALS FOR MNATS 1176 REV A VERSION 1.0 BOARD
MAIN BOARD
QUANTITY VALUE DESCRIPTION DESIGNATION NOTES
3 0.15uF CAPACITOR C1 C2 C8
3 1uF CAPACITOR C10 C17 C7
1 47p CAPACITOR C11
4 100uF CAPACITOR C12 C21 C4 C5
1 .033uF CAPACITOR C14
1 .0047uF CAPACITOR C15
1 38p CAPACITOR C16
2 47uF CAPACITOR C18 C9
5 6.8uF CAPACITOR C19 C20 C23 C3 Cx6 Replace Cx6 with link for 1176
1 .22uF CAPACITOR C22
1 2200uF/35V CAPACITOR C24
2 2200uF/50V CAPACITOR C25 C26
1 33pF CAPACITOR C6
1 1N914 DIODE CR1
2 FDH333 DIODE LOW LEAKAGE CR2 CR3
1 1N4740A DIODE ZENER CR6
4 1N4004 RECTIFIER CR10 CR7 CR8 CR9
1 2.2M RESISTOR R10
4 10k RESISTOR R11 R35 R66 R8
4 1k RESISTOR R12 R74 R81 R82
6 47k RESISTOR R13 R16 R38 R46 R52 R53
1 22k RESISTOR R14
1 20k RESISTOR R15
4 8.2k RESISTOR R17 R34 R76 R94
1 15M RESISTOR R24
1 3.3M RESISTOR R25
1 33k RESISTOR R26
1 12k RESISTOR R27
2 560 RESISTOR R28 R33
1 1.2M RESISTOR R29
1 120k RESISTOR R30
1 39 RESISTOR R32
1 1M RESISTOR R36
1 470k RESISTOR R37
3 4.7k RESISTOR R39 R51 R70
2 270 RESISTOR R4 R41
2 2.4k RESISTOR R40 R49
1 182k RESISTOR R42
1 38.3k RESISTOR R43
1 44.2k RESISTOR R47
1 7.68k RESISTOR R48
1 27k RESISTOR R5
1 180 RESISTOR R50
2 560k RESISTOR R6 R7
2 3.9k RESISTOR R60 R67
1 2.2k RESISTOR R64
2 3.9M RESISTOR R65 R9
2 820 RESISTOR R68 R69
1 1.5k RESISTOR R72
1 680 RESISTOR R73
1 15k RESISTOR R79
1 1.1k 1Watt RESISTOR R87
1 220 RESISTOR R89
1 820k RESISTOR Rx14 Not used for 1176
2 2N5457 TRANSISTOR FET Q1 Q11
8 2N3707 OR 2N5088 TRANSISTOR Q10 Q12 Q13 Q3 Q5 Q7 Q8 Q9 Q7-Q10 HFE 250 OR ABOVE
Q12,Q13 MATCH HFE
USE ALTERNATE BASE PAD FOR 2N5088
2 J309 TRANSISTOR FET Q2 Q4
1 2N3053 TRANSISTOR MEDIUM POWER Q6
1 5k TRIMMER POTENTIOMETER R44 MULTI TURN TYPE
3 2k TRIMMER POTENTIOMETER R59 R71 R75 PREFERRED
1 7824 VOLTAGE REGULATOR VR1
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ROTARY SWITCH BOARDS
QUANTITY VALUE DESCRIPTION DESIGNATION NOTES
1 4 POLE LORLIN ROTARY SWITCH S2
2 2 POLE LORLIN ROTARY SWITCH S4
1 22nF CAPACITOR C27
1 3.6k RESISTOR R16
1 130k RESISTOR R19
3 56k RESISTOR R20 R21 R22
1 10M RESISTOR R45
2 470 RESISTOR R54 R61
1 270k RESISTOR R57
1 180 RESISTOR R58
1 560 RESISTOR R62
1 1.5k RESISTOR R63
ADDITIONAL COMPONENTS
1 600 OHM "T" ATTENUATOR
1 UTC O-12 OR ALTRAN C-3837-1 INPUT TRANSFORMER
1 CM96731 OR EA-5002 OUTPUT TRANSFORMER
1 50V CT POWER TRANSFORMER SELECT FOR LOCAL MAINS VOLTAGE
THESE ITEMS
AVAILABLE FROM
http://hairballaudio.com/shop/
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R65
3.9M
GR METER DRIVER
Q11
2N5457
Q12
2N3707
R66
10k
R72
1.5k
TP11
TP1
R70
4.7k
INPUT
30V
METER
Q13
2N3707
R69
820
R74
1k
R73
680
(TO TRANSFORMER/ATTENUATOR
CIRCUIT)
R79
15k
R67
3.9k
TP10
R44
TRACKING ADJ
R68
820
"O" SET
R71
2k
U1
R75
2k
R4
270R
___
/
/
/
/
/
/
/___
NULL ADJ
20:1
RELEASE
R59
38pF
R34
8.2k
R94
8.2k
C16
Q6
2N3053
C14
.033uF
R64
1.2k
30V
R33
560R
BRN
WHTRED
BLK
WHTBLK
R32
39R
C15
.0047uF
5002
T2
X
BLUE
YEL
OUTPUT
ORN
Y
RED
GREY
VIOLET
POWER SUPPLY
30V
+
C23
6.8uF
R56
R35
10k
R60
3.9k
R87
1.1k
R89
220
1N4740A
VR1
7824
IN
OUT
COM
CR6
+
C24
2200uF
+
C25
2200uF
+
C26
2200uF
R82
R81
1k
CR7
1N4003
CR8
1N4003
CR10
1N4003
CR9
1N4003
1k
AC1
AC2
CT
SIGNAL PREAMP
SIGNAL LINE AMP
R17
30V
8.2k
R13
47k
R9
R5
27k
C1
0.15uF
2N5457
R6
560k
R7
560k
GR
+8
R77
8.2k
+4
R18
3.6k
C2
0.15uF
Q1
C22
.22uF
(R77 NOT USED IN
ROTARY SWITCH VERSION)
Y
X
S2
R76
8.2k
3.9M
Q2
R8
J309
10k
+
R11
10k
R12
1k
GR OFF
C17
1uF
C3
6.8uF
R21
56k
R36
1M
+
R37
470k
R10
2.2M
R22
56k
R14
22k
+
C4
100uF
2N3707
Q3
C7
1uF
+
R15
20k
100uF
R16
47k
C6
33pF
130k
R19
R20
56k
+
C5
R23
OUTPUT
.15uF
C8
S4(A)
/ /
/ /
/ /
/ /
/ ____________________________________________________________________ /
GR CONTROL AMP
R51
4.7k
R38
47k
Q7
2N3707
R39
4.7k
Q8
2N3707
R40
2.4k
R41
270
182k
R42
38.3k
R43
C18
47uF
R47
44.2k
+
Q9
2N3707
R48
7.68k
R46
47k
Q10
2N3707
R49
2.4k
R50
180
6.8uF
+
6.8uF
+
C19
C20
R26
33k
R24
15M
Q4
J309
R25
R27
3.3M
12k
R28
560
R58
R45
180
10M
4:1
R52
47k
R53
47k
+
C10
1uF
+
R61
470
100uF
FDH333
C21
FDH333
+
47uF
C9
CR3
C11
47pF
R29
1.2M
R30
120k
CR1
1N914
R62
470
S4(B)
8:1 12:1
CR2
Rx14
820k
Q5
2N3707
.022uF
+
C12
100uF
Cx6
6.8uF
+
R63
1.5k
C27
R54
470
R55
ATTACK
R57
270k
"Q" BIAS ADJ
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