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Nevada United States 1936 stock footage and images

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Animated film with the help of diagrams depicts radio transmission and reception.

Training film The Wizardry of Wireless, on radio transmission and reception. View of a diagram with Grid Potential written on it. The oscillating action causes the antenna current to alternate. Alteration depends on turns of wire in the coil. Man demonstrates the direction of current flow on instrument. Animated picture of the electromagnetic waves from a tower. The transmitters are connected and antenna current passes through them. Diagram with sound waves, battery and the transmitter.

Location: United States USA
Date: 1941
Duration: 5 min 10 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675042999
Depiction of radio transmission and reception through diagrams.

Radio transmission and reception. Electromagnetic waves come in contact with antenna. Animation shows electromagnetic waves passing. A tuning coil is placed in antenna for better connectivity. This process adjusts antenna frequency. Diagram shows the tuning coil with a pendulum. The dots traveling on circuit show the frequency of reception. Diagram shows water line and the pebble. The filament circuit heats up. Incoming waves in the grid. Man holds torch in hand and opens it. Coil is placed on each end of magnet. Sound waves reduced from entering the diaphragm.

Location: United States USA
Date: 1941
Duration: 10 min 38 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675043000
Cartoon animation 'Private Snafu' in 'Spies' leaks out classified information (WW2)

Cartoon animation 'Private Snafu' in 'Spies' leaks classified information a little at a time until the Germans and Japanese find out and sink his transport ship. World War II cartoon Private Snafu speaks over the phone and leaks out important information. He buys magazines, and drinks at a bar. He speaks to a woman. Bird carries a message in a letter to Adolf Hitler. Cartoon animation of Hitler speaking over microphone. German battleships prepare for war. German ships capture Private Snafu. Adolf Hitler interrogates Private Snafu.

Location: United States USA
Date: 1944
Duration: 3 min 44 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675043012
The (Armed Forces Network) staff work at AFN radio Station and announcers broadcast news.

The AFN (Armed Forces Network) staff including announcers, researchers and editors work at AFN radio station. Staff member types on a typewriter. Senior newscaster briefs announcer before a news broadcast. Announcer reading news from a sheet of paper, speaks over microphone. Clock on Wall with AFN Berlin written under it. Another announcer broadcasts news in Berlin.

Location: United States USA
Date: 1962
Duration: 2 min 6 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675043017
The USS Thresher underway on surface of water and begins to submerge.

The USS Thresher underway on surface of water at slow speed. The submarine moves on water surface. Starboard of the submarine as it moves on water surface. The USS Thresher begins to submerge underwater.

Location: United States USA
Date: 1963, March
Duration: 2 min 42 sec
Sound: No
Color: Color
Clip Type: Unedited
Language: None
Clip: 65675043115
The USS Thresher underway begins to submerge under water.

The USS Thresher underway on surface of water at slow speed. The periscope and snorkel of submarine. USS Thresher begins to submerge under water. Number 593 written on the submarine. The USS Thresher on water surface with its starboard.

Location: United States USA
Date: 1963, March
Duration: 2 min 28 sec
Sound: No
Color: Color
Clip Type: Unedited
Language: None
Clip: 65675043117
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