Its purpose in life was to be the local oscillator and mixer in AM radios, and a kazillion of them were made to fill that purpose.
它本来是被
作调幅收

的本振和混频管,并且被
量的生产出来以实现这

。
振荡器Its purpose in life was to be the local oscillator and mixer in AM radios, and a kazillion of them were made to fill that purpose.
它本来是被
作调幅收

的本振和混频管,并且被
量的生产出来以实现这

。
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