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仙鹤 PAB 专利系列有线广播扩音机,系上海奉贤开源电器厂生产的,电路特殊,维修难度大。输出部分的末级电路采用高反压大功率场效应管,使其更具有强劲的输出功率和很好的音质,对农村复杂的广播线路非常适应。几年来我村的这台 PAB275型(275 W)广播机,从未出现过任何故障,远超过了它的前任“红旗”
Crane PAB patented series of cable radio amplifiers, the Department of Shanghai Fengxian open source electrical plant production, special circuit, maintenance difficult. Output part of the final stage of the circuit using high-pressure high-power FET, making it more powerful output power and good sound quality, very sophisticated rural radio line adaptation. The PAB275 (275 W) broadcaster in our village has not seen any failures over the past few years, far exceeding its predecessor “Red Flag”