The Super-Emitron

 

 

 

    

Front and rear views


     

            The photo-cathode, looked at                                     A closer look

                through the font window.                                           at the rear.

  

 

            The Super-Emitron tube was developed by the English EMI (Electrical and Musical Instruments Company) by Isaac Schoenberg and Sydney Rodda in the mid-thirties and was first used in London in 1937. It claimed  over ten times more light sensitivity than the original Iconoscope made by General Electric

   

             Super-Emitrons (or similar) were then built in different European countries.  They continued to be in use through the late forties until the advent of the Image-Orthicon tubes followed some two decades later by the Vidicons.

 

            . The tube shown above is Russian made and bears the Model Number “Li 7” and the serial Number 6221.

 

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