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      <link>https://bbs.syyyd.com/forum.php?mod=viewthread&amp;tid=9201</link>
      <description><![CDATA[400 watt stereo Amplifier]]></description>
      <category>电路图</category>
      <author>rierie</author>
      <pubDate>Sun, 11 Aug 2013 02:47:38 +0000</pubDate>
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      <category>电路图</category>
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      <description><![CDATA[转载自互联网！！！
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      <category>电路图</category>
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      <description><![CDATA[步进电机控制板

直流电机调速


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