Cautions and Warnings
Do not attempt any type of service or repair on this Amplifier without first removing
the AC power and allowing at LEAST 60 MINUTES FOR THE HIGH VOLTAGE
CAPACITORS TO BLEED OFF !
Make no attempt to put this Amplifier in service with the top or bottom covers
removed. CONTACT WITH VOLTAGES IN THE CABINET CAN BE FATAL !
Never attempt operation without first connecting your amplifier to an appropriate
antenna or dummy load. The antenna SWR should not exceed 2:1. The dummy
load should have an impedance of 50 ohms with sufficient power handling capability.
DAMAGE TO THE AMPLIFIER MAY RESULT IF OPERATED WITHOUT A
CONNECTION TO A PROPER LOAD.
Never operate this amplifier without the ALC connected. Most modern transceivers
have sufficient output power to seriously overdrive this amplifier. THIS MAY
RESULT IN DAMAGE TO EXPENSIVE COMPONENTS SUCH AS THE
3CPX800A7 TRIODE TUBES.
NEVER OPERATE THIS AMPLIFIER WITHOUT AN EARTH GROUND
CONNECTED TO THE REAR PANEL GROUND TERMINAL.
Do not obstruct the ventilation holes located on the top, bottom, and sides of the
cabinet. These holes provide sufficient intake and exhaust of cooling air.
SEVERE OVERHEATING AND SERIOUS DAMAGE WILL RESULT IF
SUFFICIENT VENTILATION IS NOT PROVIDED.
If any problem occurs which can not easily be corrected, contact the manufacturer
for assistance.
Accessory warnings
Your new Commander HF-2500/HF-2500 MAGNUM has the capability of 1500 watts
output continuous carrier without time limit. Many accessories such as power
meters, traps. and baluns have power ratings for the old 1,000 watt input (600 watt
output) power restriction. The 1500 watt continuous carrier output capability of the
Commander HF-2500/HF-2500 MAGNUM may destroy these accessories. If you
are in doubt about the power handling capability of a particular accessory, contact
the original manufacturer, or use the accessory at reduced output power. When in
doubt , do not use an accessory with this amplifier. FAILURE OF AN
ACCESSORY MAY CAUSE DAMAGE TO THE COMMANDER HF-2500/HF-2500
MAGNUM.
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