1N21A Silicon Microwave Rectifier, Western Electric, circa 1940

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  • Details
  • Description
Date Introduced
1940 ca.
Photographer
Richards, Mark
Dimensions
overall: 1 in x 1/4 in x 1/4 in
Manufacturer
Western Electric
Copyright Owner
© Mark Richards
Object ID
102711174

Semiconductor detector diodes regained prominence in World War II because of their ability to function at radar microwave frequencies.