User manual AMERITRON AL-572

[. . . ] Ameritron AL-572 Instruction Manual Table of Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Unpacking Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 AL-572 Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The packing materials used to ship this amplifier were specially designed to prevent shipping damage. The original packing materials should be used to ship this amplifier. Replacement packing materials may be purchased from Ameritron if original packing materials are unavailable or damaged. CAUTION: Never ship this amplifier with the tube installed. Ameritron will not be responsible for shipping damage caused by improper packing. NOTES 13 Ameritron AL-572 Instruction Manual INSTALLATION GUIDELINES AND SUGGESTIONS LOCATION OF THE AMPLIFIER Do not install the amplifier in excessively warm locations or near heating vents or radiators. Be sure air can circulate freely around and through the amplifier cabinet. Provide an unobstructed cold air inlet for the amplifier. DO NOT place any books, magazines or equipment that will impede the free flow of air near or on the cabinet ventilation holes. VENTILATION The AL-572 ventilation system has been designed and tested to maintain tube seal temperatures safely below the tube manufacturer's rating at 600 watts of continuous carrier or 1300 watts of two tone power output when the amplifier is properly tuned. The fan in the AL-572 is a permanently lubricated type that requires no maintenance in normal operation. To insure adequate cooling in your installation, please observe the following: 1. Do not block or unduly restrict the ventilation holes in the cover. Be sure that the amplifier is located in an area so the ventilation holes have open air circulation. It is particularly important to avoid restricting the air inlet. Do not "assist" the exhaust airflow with cabinet mounted fans. The most efficient way to improve airflow is to pressurize the air inlet area. Be sure that any fan used to assist the inlet airflow has at least a 60 CFM rating. The exhaust air will become quite warm at high power levels. Do not place any heat sensitive objects in the exhaust air stream. POWER CONNECTIONS The AL-572 is supplied with a NEMA 5-15P plug for 120 Vac operation. Full duty cycle operation with ac supply voltages below 100 volts is not recommended. The "TRANSFORMER CONNECTIONS" section on page 15 show the correct wiring for various supply voltages. This amplifier has a current demand of 16 amperes at 120 Vac with 1000 watts of RF carrier output. The average power line current during voice peaks on SSB will be approximately 9 amperes at 1300 watts PEP output. [. . . ] These areas should be inspected periodically, especially if the amplifier is operated in a dusty environment. These areas may be inspected by unplugging the line cord and waiting a few minutes for the power supply capacitors to discharge. The high voltage should then be checked with the internal multimeter by placing the meter switch in the HV position. Accidental contact with the voltages in this amplifier can be lethal! 27 Ameritron AL-572 Instruction Manual For your personal safety please observe the following precautions: 1. [. . . ]