14 GHz, 350 W/400 W CW, CONDUCTION COOLING, HIGH POWER GAIN

GENERAL DESCRIPTION NEC LD7249 series of PPM-focused traveling wave tube are designed for use as final amplifiers in the earth-tosatellite communications transmitter. Two models of the LD7249 series are capable of delivering an output power of 350 W and 400 W over the range of 13.75 to 14.5

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NEC

瑞萨

14 GHz, 350 W/400 W CW, CONDUCTION COOLING, HIGH POWER GAIN

GENERAL DESCRIPTION\nNEC LD7249 series of PPM-focused traveling wave tube are designed for use as final amplifiers in the earth-tosatellite communications transmitter.\nTwo models of the LD7249 series are capable of delivering an output power of 350 W and 400 W over the range of 13.75 to 14.5 GHz an ™ High Power Gain\n   The power gain is typically 54 dB at the rated output power level.\n™ Simple Cooling System\n   The tube is conduction-cooled so that the cooling system is greatly simplified.\n™ PPM Focusing\n   The tube is PPM (Periodic Permanent Magnet) -focused, eliminating entirely the foc;

Renesas

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文件：275.59 Kbytes 页数：17 Pages

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立锜科技

Synchronous Step-Down Converter

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15 watt; R30 Compact Fluorescent; 5000K; 82 CRI; Medium base; 120 volts

文件：125.23 Kbytes 页数：1 Pages

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