Results for "Technology"
- SI History Chronology
Ham Radio Station, NMHT, Opens
- Date: June 5, 1976
John Swafford Demonstrating Ham Radio, NMHT
- Date: 1978
- Creator: Hofmeister, Richard K
- Creator: Hofmeister, Richard K
Lee De Forest (1873-1961)
- Finding Aid
SIA Acc. 18-094, Science Service, Records, circa 1920s-1970s
- Date: 1920 1920-1970 circa 1920s-1970s
- Creator: Science Service
- Creator: Smithsonian Institution Archives
![Lee De Forest (1873-1961), Smithsonian Institution Archives, SIA Acc. 90-105 [SIA2008-0953].](https://ids.si.edu/ids/iiif/SIA-SIA2008-0953-000001/full/250,/0/default.jpg "Lee De Forest (1873-1961), Smithsonian Institution Archives, SIA Acc. 90-105 [SIA2008-0953].")