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ALS-600SPS Voltage Settings
When opening up the ALS-600SPS make sure it is unplugged and has been off for a
while to make sure the capacitors have been discharged. Some of the capacitors can
have a charge of 300-400VDC.
The ALS-600SPS will only need to be changed when switching between 120 and
240VAC. Move these jumpers only when changing voltages. Do not move any other
wires or bayonet connectors in the power supply.
Jumper 1 Jumper 2
Figure 6 ALS-600SPS Board Diagram
120V 240V
Jumper 1 A2 to A1 A2 to A3
Jumper 2 A5 to A4 A5 to A6
Table 5 ALS-600SPS Jumper Settings
ALS-606 Functional Overview
The ALS-606 is an amateur radio multiband radio frequency linear power amplifier with
600 watts PEP nominal output. This device complies with technical standards of FCC
rules, CFR Title 47 part 97.317(a) and (b).
General Operation
This linear amplifier covers the 160, 80, 40, 30, 20, 17, 15, 12, 10, and 6-meter amateur
bands. It typically requires 50-watts to 75-watts drive power. When power is off or when
the amplifier is not in transmitting mode, internal relays bypass the amplifier. When
power is ON and the standby switch is in the OPERATE position, and when the rear
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