四晶体管收音机 Four Transistor Radio
晶体四极管 [电子] crystal tetrode ; [电子] tetrode transistor
四极场效应晶体管 tetrode field effect transistor ; field effect tetrode
结型四极晶体管 junction tetrode transistor
四极晶体管 tetrode transistor ; tetrode ; transistor
四层晶体管 four band transistor ; [电子] four-layer transistor
面结型晶体四极管 junction transistor tetrode
生长型四极晶体管 [电子] grown-tetrode transistor
四接面晶体管 tetrajunction transistor
晶体四极管混频器 crystal-tetrode mixer
第一开关电路耦 接至电平转换器,并在第三晶体管导通时,关闭第四晶体管。
The first switch circuit is coupled to the electrical level translator and turns off the fourth transistor when the third transistor is turned on.
晶体管收音机伴你走四方。
第一款晶体管收音机-丽晶TR - 1(Regency TR-1),1954年以49.99美元的价格面市,其中包含四个晶体管。
The first transistor radio, the Regency TR-1, went on the market for $49.99 in 1954. The radio contains four transistors.
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