®
Budda
MN
Block Diagram
of main signal
path and controls
Inputs
High Gain
1
V1
Medium Gain
2
10dB
Pad
3
12AX7
Ch1 Ch2 Ch3
Over-Boost controls
Effects Bypass
& Parallel Mode
Effects Loops
Reverb
(see below)
circuitry
To Reverb
Pan
Ch1 Ch2 Ch3
Reverb controls
Channel Mode
From
Preamps
Level
Send
Level
Send
Level
Send
From
Preamps
Level
Send
Level
Send
™
-100
V2
2
3
V3
2
6
3
V1
Clip
7
&
EQ
8 12AX7
V5
2
Over-Boost circuitry
3
Preamp Out /
Power amp In
Boost
Master
section
Volume
Ch1
Ch2
Ch3
Presence & Resonance controls
Effects Bypass
& Parallel Mode
Mix
Return
Return switching
& Gate circuitry
Effects Loop 1
Mix
Return
Return switching
& Gate circuitry
Effects Loop 2
Mix
Return
Return switching
& Gate circuitry
Effects Loop 3
Global Mode
Mix
Return
Return switching
& Gate circuitry
Effects Loop 1
Loop 1 & 3
Bypass
Mix
Return
Return switching
& Gate circuitry
Effects Loop 3
EQ
6
V2
1
LO
MID HI
7
Bass Mid
Treble
Gain
8
12AX7
12AX7
Channel 1
V3
V4
V4
1
6
1
6
7
2
7
Gain
8
3
8
12AX7
12AX7
12AX7
12AX7
Channel 2
V5
V6
V6
1
6
1
6
7
2
7
Gain
8
3
8
12AX7
12AX7
12AX7
12AX7
Channel 3
V8
3
1
4
5
EL34
8
V9
3
1
V7
1
4
2
5
B+
EL34
8
3
12AX7
Half power
12AX7
8
8
EL34
5
7
4
1
V7
6
V10
3
8
EL34
Tube
5
Power
4
1
Amp
V11
3
Channel Mode:
To Reverb
Each effect loop only works when
& Master
Sections
the same channel is selected.
Global Mode:
Effects Loops 1 and 3 only work when
the same channel is selected.
Effects Loop 2 can be
selected on any channel.
If two loops are on then the signal
is routed through loop 1 or 3
then through loop 2.
Therefore loop 2 is the
Master / Global loop.
Level
Return
Send
Loop 1 & 3 Bypass and Loop 2 Bypass are switched
automatically during channel switching.
Volume
EQ
LO
MID HI
Bass Mid
Treble
Volume
EQ
LO
MID HI
Bass Mid
Treble
Volume
Silicon Rectifiers
B+
Power
Supply
8
and PowerPan
2
PAN
circuitry
5U4
8
Half power
2
5U4
16ohm
Tube Rectifiers
8ohm
P
S
4ohm
To Speakers
Slave Out
Level
Effects Bypass
& Parallel Mode
Loop 2
Bypass
Mix
Return switching
& Gate circuitry
Effects Loop 2
V12
6
4
V13
6
4
To Reverb
& Master
Sections