78 



The Electron Microscope 



Electron Gun 

 Specimen Chamber 



Diffraction Chamber 

 Viewing Chamber 



Magnification Control 



I.I' I M M ., 1 (_'ircuits 

 Power Supply 



Fig 25. R.C.A. Universal Electron Microscope Model 1944. In addition 

 to the features of Type B electron microscope, it contains a stereoscopic 

 object stage and a diffraction adapter as permanent fixtures. 



