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vr2io | all galleries >> Galleries >> 間諜電台 Spy Radio > 裝有脈衝編碼的電台
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裝有脈衝編碼的電台


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Jim DJ2EI 16-Jun-2005 06:03
Sorry! Transistors are NPN type!! 45 channels with 9 crystals on basic frequency and shifted plus/minus 1,25 and 2,5 KHz....
Jim 17-Mar-2005 06:12
U.S. PRC-316 or British A-16 HF Radio for Special Forces.... One of the first sets fully solid-state with PNP transistors. Channelized with quartz-crystals 2-7 MHz. Here shown with GRA-71 High Speed Morse Code unit.