AMERITRON ALS-606, Instruction Manual

Page: 14 / 44

Version 0A 14
1250 watts average power and 1500 watts peak dc power. The 12-volt supplies are for
illumination, bias, and control functions.
Power supply to amplifier interconnections are through a heavy-duty cable using reliable
Cinch Jones connectors.
Power Line Requirements
This amplifier ships wired for a nominal mains voltage of 120 Vac with either supply.
Maximum power line current at full power output is 12 amperes at 120 volts. 250-volt
rated 15-ampere fuses protect the power line.
Always use 125V or 250V line fuses.
The linear supply requires changing taps for different line voltages. The switching power
supply is voltage regulated, current limited, and automatically adapts to any mains
voltage between ~95 Vac and 135 Vac. The ALS-600SPS switching supply does not
require adjustments or voltage tap changes.
See the “Power Supply Line Voltage Settings” starting at page13 for changing the line
voltage settings.
Note: 240-volt power mains operation is possible. This will not normally increase power.
Because average power is very low, SSB operation is generally unaffected by 120- or
240-volt operation. 240-V fuse size is 8-amperes maximum, fast blow only. The fuse
must have a voltage rating of 250VAC
Power Supply Location
Locate the power supply in a ventilated area convenient to the amplifier location. Avoid
placing the power supply next to sensitive equipment, such as audio processors,
transceivers, or microphones. For safety, ground the wing nut stud on the supply rear to
the station ground buss. The station ground buss should comply with National Electrical
Codes. NEC safety and fire protection codes mandate direct bonding of station grounds
to the home power line entrance ground. Station ground rods not directly bonded with a
low impedance connection to utility entrance grounds will increase equipment or
property damage, and increase personal risk, significantly.