The primary circuits are fused by two fuses (F1, F2) that are rated at 15 amperes at 100
volts, 12 amperes from 110 to 120 volts or 8 amperes from 220 to 240 volts. Since the
current demand and the power factor of this supply are so low Ameritron does not
recommend operating this supply on the higher voltage lines (210 to 240 volts) unless
lower voltages are unavailable.
Low Voltage Circuits
The low voltage power supply sections supply 14 volts positive at 2 amperes maximum
with a full wave grounded center tap supply for
'control, lights and also to power the bias
voltage regulator and the circuitry of the Bias/Wattmeter board in the ALS-600. This low
voltage circuit is protected by a 2 ampere fuse (F602) located on the power supply
printed circuit board.
A separate half wave rectifier supplies the low current necessary to operate the ALC
circuitry in the ALS-600. This circuit is protected by a 10 ohm 1/4 watt resistor (R601).
15
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