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 use of low quality tubes, tubes that have been stored for extended periods, or abused tubes increase likelihood of a "gas arc". Ameritron recommends using only current code date 572B tubes. EXPORT MODIFICATIONS A simple modification will allow operation on frequencies above 15 meters. Instructions for this modification are available by sending a written request for "Export Modification Instructions" along with a copy of a valid amateur license. Export models are shipped with this modification installed and have an "X" or "Y" following the serial number. Address: Ameritron 116 Willow Road Starkville, MS 39759 FAX: (662) 323-6551 12 Ameritron AL-572 Instruction Manual TECHNICAL ASSISTANCE Technical assistance is available during normal central standard time business hours on weekdays. Customer service is more effective when our technicians are provided the following information: 1. An accurate description of the problem Meter readings at all stages of the tuning procedure are very important along with a complete description of the other equipment used with our product. Due to time delays in processing mail, please allow at least three weeks for a written reply. For service or written correspondence, use the following address: AMERITRON 116 Willow Rd. 39759 Telephone: (662) 323-8211 FAX: (662) 323-6551 Note: Service history has clearly shown that most problems are operating or installation errors, rather than equipment failures. The packing materials used to ship this amplifier were specially designed to prevent shipping damage. Replacement packing materials may be purchased from Ameritron if original packing materials are unavailable or damaged. 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. 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. Be sure that the amplifier is located in an area so the ventilation holes have open air circulation. 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. 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. [. . . ] However, it provides less flexibility and serviceability than the external QSK-5 unit. Contact Ameritron for details on the QSK-5 and the QSK-5PC. PERIODIC MAINTENANCE The high voltage present on various parts of the amplifier will attract dust and dirt. The high voltage areas at the bottom of the plate choke and the plates and insulators of the air variable capacitors should be kept dust free. These areas should be inspected periodically, especially if the amplifier is operated in a dusty environment. [. . . ]