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SymExp2

Symmetrical Exponential Current Sources

Courtesy/Thanks to: Osamu Hoshuyama

Description: Invented by Shin´ya Morita in the 70's when he was a high school student.
Reinvented by Osamu Hoshuyama in March 2000

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Files
symexp2.gif
   Schematics for the symmetrical exponential current sources
Manufacturers
Osamu Hoshuyama
   houshu@muj.biglobe.ne.jp
Parts used
2N3904
   NPN switching transistor