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R18 R20

10K 1K
C26 R19 C5 2W 2W
C15
C25
1K 10
10 C18
.1 56 pF 450V
D9 450V 100
200V
1N914 R14 450V
1 75V PIV 100K
1/2W
1
D10 P3




CW
1N914 C9 1%
1%
75V PIV 1/2W
250K A
C1 100K 100 pF
J1 R2 GAIN R9 C8 200V

3 C4 R5 J3
.1 1K 1 R11 R12 J4 J5
IC1:A R13
2 9-PIN 7
TLO-72 C6 C14 EL84 9
.22 2.2K .047 22.1K 221K 221K
TLO-72 6 2
IC1:B 400V 1/2W 1/2W 3
1/2W R6
INPUT 7 1% 1% .047 4 5 BLUE RED
5 .1 1%
C2 J2:A C10 100K 400V
1/2W J2:B
.01 C11
R8 1% 9-PIN
220 pF 1 100V .0047 6
100V 2 4 100V 7 5


R3 47K 3 9 8 9



9-PIN LEVEL
47K R7 CW R16
100K P1 221K
NOT ON PWA




CW
P2
R1 10K L 1/2W
R4 1% C16
1M 22K 250K L
R17 220
1/2W SHAPE 63V
1% R10 R21 100
C3 1.5K C12 221K 2W J19
1/2W 1/2W C13 1
.047 .0022
1% R15
100V 1% C7 22
1.5K
2 22
100V
1/2W
1%
2
2


NOT ON PWA
J6


LINE OUT
RING
D3 D1
RING_SW

TIP_SW J17
1N4007 1N4007
1KV PIV 1KV PIV J18 TIP
J9
FC2 SLVE_SW
1 J13 FC1
FUSE CLIP
J10 FUSE CLIP
SLEEVE
2
D4 D2 J11
3

4 J12
1N4007 1N4007
1KV PIV 1KV PIV 5



NOT ON PWA
J7
C23
3 .0033
J14
3
D6 C19
250V

1N914 220
16V
D5
1N914 J8
C21 1
220
16V 2

3
D7
C22 1N914
J15
220
16V 16V C24
1N914 220 .0033
250V

D8 C20

A 12/11/03 INITIAL ISSUE


REV Date DESCRIPTION Ecr(s)/Ecn(s) Chgd By Appvd by Date
CAUTION:
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
ST. LOUIS MUSIC, INC
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND Signatures: Date:
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
Drawn: REM 12/10/03
4 11880 Borman Drive, St. Louis, MO 63146
First Used On:
4
NOTES: Checked:
1) CAUTION: SHOCK HAZARD!! Released:
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE Plot Date: Mon Jun 20, 2005 Drawing Size: C Drawing Title:
TOUCHING INTERNAL PARTS.
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/8W-5% TOL. Plot Time: Drawing Type: Schematic
PWA - 5WATT TUBE AMP
CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
Class Code: NONE Drawing Number:
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE Tolerance:
AND 10 MEGOHM DIGITAL VOLTMETER.
Sheet 1 of 1
07S482

A B C D E F