10元钱的全波段立体声收音机 拆开出乎你的意料！

昨天向一个小摊贩购得的，10元一台，他手上共有100台，因为看外形造工不好，不敢多要，当场试验包响的。

并不是买来收听电台的，只是好奇，想看看内部是什么样子，相信许多朋友和我一样。
想想以前玩过的德生PL737、PL747、PL-350，最满意的是一台SONY的收音头，其灵敏度、音质都是德生PL-350没法比的，根本不在同一档次。后来转手给了一个上海的买家，所以现在其它收音机都不想玩了，除非找到一台性能更好的。

不多说了，回到10元的收音机上来

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包装盒上打着赛格的标识，为12波段立体声收音机


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拆开包装，收机机的正面，看起来还不错，带电视伴音接收


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电音机顶部，标有波段说明，型号SED-TV126


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侧面的电源开关和耳机孔＋外接电源


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收音机背面


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拆开后盖，看到的电路板全图




CXA1622M:
Stereo Power Amplifier/Monaural BTL Power Amplifier
1.该集成块为双列16脚封装
2.电源：9脚为 +4.33V
3.主要用途：双声道功率放大电路
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采用了索尼的放大芯片CXA1622M



TA8122AF为中放、检波及立体声鉴频IC
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单片AM/FM调谐器集成电路TA8122


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0.25W/16欧喇叭
  

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一排中周和磁性天线


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手动调谐机械部份特写


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中周特写


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调谐可变电容器特写





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你能看得出来有几颗中周吗？


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AM中波收音用的磁性天线