Table of Contents
CHAPTER 1 .......................................................................................................................................1
INTRODUCTION....................................................................................................1
Symbol Conventions used in this guide..................................................................................1
Electrical Safety Notice...........................................................................................1
Water and Moisture...................................................................................................1
Location and Ventilation........................................................................................1
Servicing...........................................................................................................................2
Operational Warnings .............................................................................................2
CHAPTER 2 .......................................................................................................................................3
GETTING STARTED.........................................................................................3
Unpacking the ST-150 from its box..................................................................3
The ST-150 Front Panel .........................................................................................4
Check for tube placement.......................................................................................................4
ST-150 Back Panel.................................................................................................................5
Connecting Your Amplifier to your system..................................................5
Voltage Setting .............................................................................................................6
Power Source for your Amplifier ......................................................................6
CHAPTER 3 .......................................................................................................................................7
OPERATING THE AMPLIFIER..............................................................7
Powering your system on.......................................................................................7
Ground Loop Hum.....................................................................................................7
Powering the system off ..........................................................................................8
Tetrode-Triode Switching......................................................................................8
Bias checking and Setting......................................................................................8
Top view and Bias Measurement points of the ST-150 Amplifier...................................................10
CHAPTER 4 .....................................................................................................................................11
CARE AND MAINTENANCE OF YOUR VTL
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MPLIFIER...............................................................................................................11
ST-150 Owner’s Manual
VTL
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