| Title |
Diode Cold Cathode Multipactor tubes....unique in that it has no filament. |
| Photo Number |
P0437n1_08_05 |
| Description |
Photo reads: "Diode Cold Cathode Multipactor tubes....unique in that it has no filament." Taken in the 1920s or 1930s. |
| Date |
1920; 1921; 1922; 1923; 1924; 1925; 1926; 1927; 1928; 1929; 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939 |
| Textual Date |
Circa 1920s, 1930s |
| Keywords |
Televisions; Inventors; Equipment; Diodes |
| Subject |
Television--History--Photographs |
| Additional Information |
See MS 1252 |
| Collection Number and Name |
P0437 Philo T. Farnsworth Photograph Collection |
| Collection Name |
Philo T. Farnsworth |
| Original Source |
N/A |
| Donated By/Purchased From |
Donated by Mrs. P.T. Farnsworth |
| Rights |
 |
| ARK |
ark:/87278/s6dz0vp6 |
| Setname |
uum_map |
| ID |
948450 |
| Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6dz0vp6 |
