Table of Contents
ALS-600 Specifications…………………… …………………………………………. 4
Optional Accessories…………………………… …………………………………. 5
ALS-600 Features............................................................................................................6
Power Supply Features....................................................................................................8
ALS-600PS..........................................................................................................8
ALS-600SPS........................................................................................................8
ALS-600PS and ALS-600SPS.............................................................................8
General Information.........................................................................................................9
Amplifier..............................................................................................................9
Power Supply.......................................................................................................9
Export Modifications...........................................................................................10
Amplifier Circuitry..........................................................................................................10
Wattmeter Circuits...............................................................................................10
ALC (Automatic Level Control)..........................................................................10
Thermal Overload................................................................................................11
Load Fault Indicator.............................................................................................12
SWR Considerations............................................................................................12
Power Supply Circuitry (ALS-600PS)............................................................................13
Line Voltage Modifications.................................................................................13
High Voltage Section...........................................................................................14
Primary Circuit.....................................................................................................14
Low Voltage Circuits...........................................................................................14
Switching Power Supply Circuitry (ALS-600SPS).........................................................15
Line Voltage.........................................................................................................15
High Voltage Section...........................................................................................16
Primary Circuit.....................................................................................................16
Low Voltage Circuits...........................................................................................16
Installation........................................................................................................................16
Amplifier Location...............................................................................................16
Power Supply Location........................................................................................16
Grounding............................................................................................................17
2