RCA Experimental (?) Photomultiplier
Tube photomultiplicateur
Fotovervielfacher
			  This is an unknown, possibly experimental, photomultiplier tube that appears to have 
              been manufactured by RCA. Note the unusual metal disk seal near the base.
			   
			  
			  Hauteur • Height • Höhe : 23 cm • 9"
              Diamètre • Diameter • Durchmesser : 51 mm • 2"
              
			  
              
              
			   
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