OVERVIEW _______________________________________________________________________ 1-2
HELPFUL HINTS __________________________________________________________________ 2-3
INSTANT GRATIFICATION _____________________________________________________________3
FRONT PANEL CONTROLS & FEATURES
INPUT _____________________________________________________________________________4
FOOTSWITCH_______________________________________________________________________4
DRIVE _____________________________________________________________________________4
CHANNEL SELECT __________________________________________________________________5
DRIVE / CLEAN _____________________________________________________________________5
THICK / NORMAL / THICKER __________________________________________________________5
GAIN ______________________________________________________________________________6
TREBLE / MID / BASS ______________________________________________________________ 7-8
PRESENCE / MASTER ________________________________________________________________8
100 / 50 / 10 WATT: Channel Power Select _____________________________________________ 8-9
OUTPUT & SOLO CONTROLS ________________________________________________________10
POWER: TWEED / OFF / ON & STANDBY ____________________________________________ 10-11
REAR PANEL CONTROLS, SWITCHES & JACKS
FUSE _____________________________________________________________________________12
RECTIFIER SELECT: Diodes & Tube Rectifier Tracking ____________________________________12
FX LOOP __________________________________________________________________________13
REVERB __________________________________________________________________________14
CHANNEL & SOLO: External Switch Ports _____________________________________________14
BIAS SELECT ___________________________________________________________________ 14-15
SPEAKERS & SLAVE_______________________________________________________________15
REVERB REMOTE JACK _____________________________________________________________15
FACTORY SAMPLE SETTINGS & PERSONAL SETTINGS SHEET ________________________ 16-18
TUBE MAINTENANCE & DIAGNOSIS ________________________________________________ 19-20
TUBE DESCRIPTION & TASK CHART __________________________________________________21
BIAS ADJUSTMENT: A feature article by Randall Smith _______________________________ 22-24
SPEAKER IMPEDANCE & POSSIBLE HOOK-UP SCHEMES - Amps to Speaker Cab ________ 25-30
TRIODES, PENTODES & IRISHMEN: A feature article on the workings of tubes ____________ 31-33
PART SHEET ______________________________________________________________________34
TABLE OF CONTENTS