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A |
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B |
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C |
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D |
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E |
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F |
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J2 |
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C7 |
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R22 |
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R27 |
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7V |
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3.3M |
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470 pF |
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100K |
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200V |
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1/4W |
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1/2W |
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5per |
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C11 |
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C23 |
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R21 |
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240V |
1per |
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220K |
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CW |
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V1:A |
1 |
.1 |
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R48 |
470 pF |
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1/4W |
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C9 |
9-PIN |
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400V |
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220K |
200V |
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-15dB INPUT |
15mV |
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5per |
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P1 |
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1 |
2 |
3 |
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GAIN |
2 |
4 |
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1/4W |
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1 |
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7 |
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8 |
9 |
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TO |
TC |
TI |
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1M A |
.1 |
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9 |
SW1:A |
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5per |
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O |
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C |
I |
SW1:B |
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100V |
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3 |
TO |
TC |
TI |
ULTRA HIGH |
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C20 |
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ULTRA LOW |
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CW |
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.001 |
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J1 |
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O |
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C |
I |
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C10 |
4 |
5 |
6 |
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BASS |
P2 |
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CW |
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R1 |
R3 |
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R6 |
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R20 |
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100V |
R30 |
P4 |
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10 |
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11 |
12 |
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1M A |
TREBLE |
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|||||||||||
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22K |
100K |
4.7K |
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.033 |
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C21 |
100K |
1M A |
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330K |
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1/4W |
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50V |
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1/4W |
1/4W |
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1/4W |
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.01 |
1/4W |
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5per |
5per |
C1 |
5per |
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R26 |
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R28 |
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5per |
R32 |
C27 |
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R11 |
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5per |
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100V |
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C8 |
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1M |
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1.5K |
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100K |
.0047 |
R43 |
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10 |
R7 |
100K |
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1/4W |
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1/4W |
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R37 |
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1/4W |
100V |
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V2:A |
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1/4W |
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5per |
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5per |
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5per |
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100K |
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1 |
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|||||
0dB INPUT |
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400V |
100K |
5per |
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.0047 |
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R23 |
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22K |
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1/2W |
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8V |
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9-PIN |
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1/2W |
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100V |
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R29 |
R31 |
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1/4W |
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1per |
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2 |
4 |
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1per |
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3.3M |
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5per |
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240V |
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R19 |
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C5 |
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1/4W |
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1.5K |
100K |
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9 |
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||||||||
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0.9V |
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220K |
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5per |
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1/4W |
1/4W |
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C16 |
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C6 |
R14 |
3 |
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235V |
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1/4W |
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5per |
5per |
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V2:B |
6 |
.1 |
R12 |
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.1 |
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.1 |
220K |
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||||||||||
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C3 |
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5per |
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100V |
9-PIN |
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400V |
100K |
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250V |
1/4W |
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6 |
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7 |
5 |
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1/4W |
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5per |
100V |
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J3 |
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.1 |
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C4 |
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9 |
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5per |
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1 |
|||
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V1:B |
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0.4V |
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400V |
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56 pF |
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7 |
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8 |
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||||
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5 |
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200V |
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2 |
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R13 |
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CW |
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C26 |
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|||||
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R4 |
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9 |
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R40 |
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R44 |
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R36 |
P5 |
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|||
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9-PIN |
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C12 |
8.2K |
|
MASTER |
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3 |
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3.3M |
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470K |
|
1.5K |
1/4W |
|
470 |
50K L |
|
.68 |
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4 |
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|||
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1/4W |
8 |
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1/4W |
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1/4W |
10 |
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1/4W |
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R33 |
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||||
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R8 |
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35V |
5per |
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250V |
|
5 |
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|||||
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5per |
C2 |
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5per |
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5per |
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5per |
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R15 |
1M |
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||
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1.5K |
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1/4W |
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22 |
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R45 |
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4.7K |
|
6 |
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||
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1/4W |
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5per |
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||||
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35V |
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2.2K |
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P3 |
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1/4W |
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2 |
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5per |
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C25 |
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7 |
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1/4W |
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5per |
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||||
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C14 |
|
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.047 |
|
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C24 |
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5per |
CW |
50K L |
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R16 |
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8 |
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||
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.047 |
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|||||
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+14V (NORMAL) |
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100V |
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MID |
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TAPPED |
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9 |
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2.2 |
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100V |
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C17 |
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220K |
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|||||||
|
|
-0.6V (FAULT) |
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R38 |
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4 |
CMN |
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1/2W |
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10 |
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50V |
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.033 |
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|
3 |
100mH |
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|
5per |
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J4 |
|
D5 |
R18 |
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100 |
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11 |
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1 |
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2 |
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100V |
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|||||
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1/2W |
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2 |
300mH |
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|||
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220K |
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IC1:A |
1 |
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5per |
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12 |
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2 |
1N914 |
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3 |
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C19 |
C22 |
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75V PIV |
1/4W |
D4 |
R24 |
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C15 |
|
1 |
800mH |
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13 |
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|||
|
3 |
5per |
470K |
|
NE5532 |
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.033 |
.1 |
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||||||
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D3 |
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L1 |
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|||||||||
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1N914 |
1/4W |
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100V |
100V |
.15 |
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14 |
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||||
|
4 |
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75V PIV |
5per |
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1N914 |
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C13 |
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||
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75V PIV |
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+14V (OPERATE) |
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100V |
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|||||
|
5 |
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-14V (STANDBY) |
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.68 |
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250V |
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R10 |
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R2 |
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3 |
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R17 |
R47 |
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R34 |
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4 |
2 |
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|||||
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|||||||
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1M |
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CCW |
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470K |
470K |
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1M |
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470 |
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CW |
S2 |
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|||||
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1/4W |
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1/4W |
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1/4W |
1/4W |
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|||||
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5per |
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1/4W |
|
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R39 |
R41 |
R42 |
|
R46 |
FREQUENCY |
|
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5per |
5per |
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|||
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5per |
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|||||||||||
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R9 |
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5per |
D1 |
BICOLOR |
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||||||
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5 |
|
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|
R25 |
D2 |
|
|
470K |
470K |
470K |
|
470K |
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||||
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7 |
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||||||||||
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100K |
|
6 |
|
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RED |
|
|
1/4W |
1/4W |
1/4W |
|
1/4W |
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|
IC1:B |
|
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|
|
5per |
5per |
5per |
|
5per |
|
CMN |
|
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|||
|
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|
R5 |
R35 |
|
1/4W |
|
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|
560 |
1N914 |
GREEN |
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|||||||
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|
NE5532 |
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|
|||||||||
|
|
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|
|
100K |
100K |
|
5per |
|
|
1/2W |
75V PIV |
|
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|||||
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|
5per |
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|||||
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|
1/4W |
1/4W |
|
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||
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|||
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5per |
5per |
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3 |
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|
J5 |
|
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|
|
|
ASSY P/N 07-519-12 |
|
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||||
|
1 |
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2 |
|
D6 |
|
D8 |
|
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|
|
1N4002TR |
|
1N4002TR |
|
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|
|
100V PIV |
|
100V PIV |
|
|
|
|
|
|
|
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|
|
|
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|
|
|
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|
|
D7 |
|
D9 |
|
|
|
R50 |
|
|
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|
|
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|
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|
|
|
|
|
|
07S519-12 DRAWING REPLACES 07S519-11 |
|
|
|
|||||||
|
|
|
|
|
|
|
|
220 |
|
|
|
|
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|
|
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||
|
|
|
|
1N4002TR |
1N4002TR |
|
|
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|
|
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|
|||
|
|
|
|
100V PIV |
|
100V PIV |
|
|
1/4W |
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
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|
|
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|
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|
||
|
J6 |
|
|
|
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|
|
C18 |
5per |
|
|
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1 |
|
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|
|
4700 |
|
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|
|||
|
|
|
|
|
|
|
25V |
|
R49 |
|
|
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|
|
|
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|
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|
2 |
220 |
|
|
|
|
|
|
|
|
|
1/4W |
|
|
|
|
|
|
|
|
|
5per |
|
|
|
|
|
|
|
|
|
|
|
|
|
0 8-21-03 |
CONTROL ISSUE |
|
|
|
CAUTION: |
|
|
|
|
REV Date |
DESCRIPTION |
Ecr(s)/Ecn(s) Chgd By Appvd by Date |
||
|
|
|
|
|
|
|
|
|
|
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. |
|
|
|
|
|
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO |
|||
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED |
|
|
|
|
|
ST. LOUIS MUSIC, INC |
|
||
|
|
|
Signatures: |
Date: |
|
|
|||
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND |
|
|
|
|
|
|
|||
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. |
|
|
|
|
Drawn: |
RLB |
5-8-03 |
|
|
4 |
|
|
|
|
11880 Borman Drive, St. Louis, MO 63146 |
||||
|
|
|
|
|
|
|
|
||
NOTES: |
|
|
|
|
Checked: |
|
|
First Used On: |
|
1) CAUTION: SHOCK HAZARD!! |
4) |
VOLTAGES IN RECTANGLES ARE RMSSIGNAL, VOLTAGES WITH 15mV IN. |
Released: |
|
|
|
|
||
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER |
|
|
|
|
|||||
|
OTHER VOLTAGES ARE D.C. IN CONDITIONS STATED. |
|
|
|
|
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AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE |
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Plot Date:Wed Aug 20, 2003 Drawing Size: |
C |
Drawing Title: |
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5) |
CIRCUIT GROUND |
LED GROUND |
CHASSIS GROUND |
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TOUCHING INTERNAL PARTS. |
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Drawing Type: Schematic |
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PWA - PREAMP |
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2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. |
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Plot Time: |
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CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. |
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Tolerance: |
Class Code: |
NONE |
Drawing Number: |
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3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE |
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07S519 |
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AND 10 MEGOHM DIGITAL VOLTMETER. |
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Sheet 1 of |
1 |
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1
2
3
4
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A |
B |
C |
D |
E |
F |
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