Over 70,000 photos covering a variety of topics from Marriott Library Special Collections
TO
| Title | Date | Type | ||
|---|---|---|---|---|
| 1 |
 |
Biased Gem parts. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949 | |
| 2 |
 |
Biased Gem parts. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949 | |
| 3 |
 |
Biased Gem parts. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949 | |
| 4 |
 |
Biased Gem parts. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949 | |
| 5 |
 |
Biased Gem parts. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949 | |
| 6 |
 |
Carl J. Christensen with camera. | 1920; 1921; 1922; 1923; 1924; 1925; 1926; 1927; 1928; 1929; 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939 | |
| 7 |
 |
Complete-Mark II. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949 | |
| 8 |
 |
Composite picture of Mark II. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949 | |
| 9 |
 |
Cyril Day working on a piece of machinery. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949 | |
| 10 |
 |
Diode Cold Cathode Multipactor tubes....unique in that it has no filament. | 1920; 1921; 1922; 1923; 1924; 1925; 1926; 1927; 1928; 1929; 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939 | |
| 11 |
 |
Farnsworth broadcast tower and shack-1936-Near Philadelphia. | 1936 | |
| 12 |
 |
Farnsworth broadcast tower and shack-1936-Near Philadelphia. | 1936 | |
| 13 |
 |
Farnsworth Iatron Tube. | 1920; 1921; 1922; 1923; 1924; 1925; 1926; 1927; 1928; 1929; 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939 | |
| 14 |
 |
Farnsworth television broadcast studio-Wyndmoor, Pa.-1936. | 1936 | |
| 15 |
 |
Farnsworth Television Model-1936. | 1936 | |
| 16 |
 |
Farnsworth Television Model-1936. | 1936 | |
| 17 |
 |
Farnsworth TV studio-1936. | 1936 | |
| 18 |
 |
Farnsworth with early television camera. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939 | |
| 19 |
 |
First design Mark III Cathode. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949 | |
| 20 |
 |
Group with Mark I government lab. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949 | |
| 21 |
 |
Group with Mark I government lab. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949 | |
| 22 |
 |
Group with Mark I government lab. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949 | |
| 23 |
 |
ITT-Mark I. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949 | |
| 24 |
 |
ITT-Mark I. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949 | |
| 25 |
 |
ITT-Mark I. | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949 |