搜索 - 科创

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引用第25楼虎哥于2011-06-06 03:40发表的 :事实上，电磁继电器在火箭和卫星中广泛应用。磁保持继电器具有非动作时不耗能，通态电阻接近于0，断态电阻接近于无穷，抗宇宙射线等特点，这方面没...

引用第15楼古人于2012-01-20 22:52发表的回 14楼(虎哥) 的帖子 :不错，虽然我不能发射，还是得收听一下KC的HAM频率。我用的BD5IK老师的K-730基地加强版，信号应该不错。...

N年前制作的一个10倍压整流电路，使用两只220：36V/200W环型变压器背靠背连接获得与市电隔离的悬浮220V作为倍压整流电路的输入电源，实测空载输出2800V，带100mA负载掉到2100V。 ...

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