Owner`s manual

Precautions _______________________________________________________________________________ 0
Overview __________________________________________________________________________________ 1
FRONT PANEL CONTROLS & FEATURES
VOLUME CONTROLS: CHANNEL A / CHANNEL B ________________________________________________ 2
PRESENCE CONTROLS A & B ________________________________________________________________ 2
POWER / ON _____________________________________________________________________________ 2-3
STANDBY / ON _____________________________________________________________________________ 3
REAR PANEL CONTROLS, SWITCHES & JACKS
INPUTS A / B ______________________________________________________________________________ 4
GROUND ISOLATION SWITCH ______________________________________________________________ 4-5
BIAS SWITCH ______________________________________________________________________________ 5
SPEAKER OUTPUTS ________________________________________________________________________ 5
TUBE BAY _________________________________________________________________________________ 6
DRIVER TUBES ____________________________________________________________________________ 6
AC RECEPTACLE ___________________________________________________________________________ 7
FUSE _____________________________________________________________________________________ 7
DIAGNOSING POWER TUBE FAILURES ________________________________________________________ 8
DIAGNOSING PRE-AMP TUBE PROBLEMS _____________________________________________________ 9
BIAS ADJUSTMENT: a feature article by Randall Smith _______________________________________ 10-12
SPEAKER IMPEDANCE GUIDE ___________________________________________________________ 13-14
POSSIBLE HOOK-UP SCHEMES - AMPLIFIERS TO SPEAKER CABINETS ________________________ 15-18
EXAMPLE WIRING DIAGRAMS ____________________________________________________________ 19-20
TRIODES, PENTODES & IRISHMEN: a feature article by Randall Smith __________________________ 21-23