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      Walter Brattain:  
        December 4, 1947: 
        Brattain's attempts to build an amplifier were getting closer and closer 
        to a working model. He had built devices which had amplification, but 
        not enough. They also didn't have a fast enough response timethey would 
        never have been able to amplify a signal as complex as a voice coming 
        over a telephone line. These lab pages show a list of all the new configurations 
        Brattain was going to try as he attempted to solve these problems. 
        
      Lab Book Pages
       Brattain 12/4/47 /a 
        Brattain 12/4/47 /b 
        Brattain 12/16/47 /a 
        Brattain 12/16/47 /b 
        Brattain 12/24/47 /a 
        Brattain 12/24/47 /b 
        Shockley 1/1/48 /a 
        Shockley 1/1/48 /b 
        Shockley 1/23/48 /a 
        Shockley 1/23/48 /b 
        Shockley 1/23/48 /c 
        Shockley 1/23/48 /d
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                Brattain Dec. 4, 1947/b
            
            
              
              
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