TRANSISTOR MUSEUM ™  

Historic Transistor Construction Project

Germanium Power Transistor Audio MiniAmp

  

 

 

 

CONCLUDING PROJECT COMMENTS

The entire MiniAmp has been built into a quad CD case, with front and rear views shown above.   Four C size batteries provide power, and a top mounted handle aids portability.   The massive, finned heatsink for the 2N95 stands out clearly in the top view, and gets only slightly warm after extended “on time”.  I use the MiniAmp most often as the sole audio output device for my home computer, which has a Pentium P4 Processor chip.   The addition of two germanium transistors to the 55 million silicon transistors in the P4 seems a very fitting way to commemorate the important contributions of still viable 50 year old design and components to modern leading edge semiconductor technology.

 

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The 2N35 transistor (shown above) has been socket mounted, using a 1950s submini vacuum tube socket. This was a standard technique when transistors first became available, since performance varied dramatically from one unit to the next, and replacement was common. 

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 COPYRIGHT © 2004 by Jack Ward.  All Rights Reserved.  http://www.transistormuseum.com/

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