The Model 201B in the 1948 Catalog

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The HP Model 201B Audio Oscillator

 

 

The HP 201B in the HP Memory Project Collection
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The Model 201B in the 1948 Catalog

 

Page 8 of the 1948 Catalog
Courtesy of the Hewlett Packard Company
Page 9 of the 1948 Catalog
Courtesy of the Hewlett Packard Company

 

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