• وبلاگ : منتظر قائم(عج)
  • يادداشت : مولا....
  • نظرات : 0 خصوصي ، 2 عمومي
    • mp3 player شوکر

    نام:
    ايميل:
    سايت:
       
    متن پيام :
    حداکثر 2000 حرف
    كد امنيتي:
      
      
     
    + 123 
    Drawing its power from a unique tuning fork system, the Bulova Accutron was the world"s first electronic replica watch . Inside the casing, a 360 hertz tuning fork sat between two electromagnet coils, which formed a single-transistor oscillator circuit. This drove the fork, which in turn powered the watch"s hands and allowed the device to keep time.
    + مدير 

    با سلام

    از حضور گرم شما تشكر ميكنم.

    اطلاعيه درج مطلب شما ارسال شد.