ETO Ehrhorn Technological Operations ALPHA 374 Усилитель
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ALPHA 374
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1.1 GENERAL DESCRIPTION The ALPHA 3?4 is a high power linear Amplifier incorporating major advances in engineering and construction. It is rated for continuous service at maximum legal amateur power (FCC r u l e s ) in SSB, CW, FSK, and SSTV inodes. Exceptional power capability is achieved in combination with uniquely compact size and modest weight, through employment of a variety of advanced components including state-of-the-art Eimac ceramic/metal tubes, a power transformer with core of tape-wound, grain-oriented silicon steel (Hipersil®), and ETO's exclusive ducted-air full cabinet cooling system. The ALPHA 374 is capable of delivering normal power output, into a reasonably well-matched load, across all amateur bands for 80 through 10 meters without manual tuning adjustments. In addition, available manual controls also permit operation on out-of-band MARS and other special frequencies from 3*5 "to 30 MHz.

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Руководство по техническому обслуживанию
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Руководство по техническому обслуживанию
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32
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english
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Отсканированы документу, все читается.
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2014 04 27
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209f7987dc044e63d7e68b0cdd98b800
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949

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SECTI0N 1-1.1 GENERAL DESCRIPTION ... .la 1.2 SPECIFICATIONS AND RATINGS ... la SECTION 2 - INSTALLATION 2.1 UNPACKING ... 2a 2.2 TRANSFORMER INSTALLATION ... 2a 2.3 ELECTRICAL INSTALLATION ... 2"b SECTION 3 - OPERATION 3.1 CONTROL FUNCTIONS ... .3a 3.2 INITIAL Amplifier ADJUSTMENT ... 3e 3.4 FINAL ADJUSTMENTS, BANDPASS TUNING . . 3g 3.5 OVERLOAD PROTECTIVE FUNCTIONS ... 3h 3.6 REDUCING EXCITER OUTPUT ... 3h SECTION 4 - MAINTENANCE AND TROUBLESHOOTING ... 4a SECTION 5 - THEORY OF OPERATION ... 5a SECTION 6 - SCHEMATICS AND ILLUSTRATIONS ... 6a SECTION ? - PARTS L I S T ... 7a AMATEUR RADIO PRODUCTS WARRANTY ... Inside Rear Cover

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