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UN-SHIELDED
CABLE
RETURN - R
EQ
LEFT
RIGHT
MAIN
OUT
TIP
RING
SLEEVE
RETURN - L
LD1 - LD2
EXT
SW
REC
OUT
FX SEND
RHY - LD
EXT
SW
10%
100%
FX MIX
HANDMADE IN CALIFORNIA
GROUND
OOGIE
B
M
ESA
CIRCUIT PATENTS PENDING
LIFT
117 V~
1 AMP
60 HZ.
WIRING EXAMPLE #1
2:100 ALL TUBE STEREO POWER AMPLIFIER
SHIELDED CABLE
Mesa/Boogie all tube Formula Pre-Amplifier
A
4 OHM
8 OHM
WARNING: To reduce risk of fire or
electric shock, replace fuse with
same type and rating only. Do not
expose this unit to rain or moisture.
WARNING: To reduce risk of fire or electric
shock, Do not remove cover. No user-
serviceable parts inside. Refer
servicing to qualified personnel.
E N G I N E E R I N G
GROUND
SWITCH
LIFT
GROUND
BIAS
SWITCH
6L6
EL34
MUST MATCH TUBES SEE OWNERS BOOK
POWER FUSE
6 A
SLO
BLO
120 V~
60 Hz
6 A
CHAN. B CHAN. A
8 OHM
4 OHM
SPEAKERS
SPEAKERS
I
N
P
U
T
S
I
N
P
U
T
S
NORMAL
NORMAL
FAN
B
RECTO INPUTS RECTO INPUTS
MODERN