3
Contents
Contents
Contents
Contents
1. Front Panel Controls
4
Instrument Input
4
Volume and Tone Controls
4
Presence
4
Effects Loop Bypass
4
Attenuation Control
5
2. Dialing In Your Sound
6
Starting Point
6
The Marshall Trick
6
Fat, Warm Clean Sound
6
Volume and Attenuation
7
Notes on Using the Attenuator
7
3. Back Panel Controls
8
AC Power
8
Fuse (Mains)
8
Fuse (Plate)
8
Power Switch, Standby Switch
8
Speaker Jacks, Impedance Switch
8
Calibration (Test Jacks, Screen & Bias Adj)
9
Effects Loop (Send, Receive)
9
Line Out
9
4. Calibration
10
When and Why to Calibrate
10
Tools you will need
10
Bias Current
11
Screen Voltage
12
5. Tube Installation and Replacement
14
Preamp Tubes V1, V2, V3
14
Power Output Tubes V5, V6
14
Installing Tubes
15
Replacing Output Tubes
15
Tube Quality
15
6. Warranty
16
