| VALVE A look at how valves work in microphones and radios. | ||
|---|---|---|
| Tape Master: | 7055 | |
| Catalog #: | 510476 | |
| Clip Number: | 510476-1 | |
| Orginal Film: | NSP 317 | |
| Timecode: | 01:53:40 - 01:56:18 | |
| Location: | England | |
| Year Shot: | 1942 (Actual Year) | |
| Audio: | Yes | |
| Color: | No | |
| Headings: | ENTERTAINMENT/RADIO: Technology ENTERTAINMENT/TELEVISION: Technology LOCATIONS/EUROPE: UK, England SCIENCE: Physics SCIENCE: Technology | |
| Description: | VALVE A look at how valves work in microphones and radios. C/U of a microphone. Various shots of diagrams illustrating how valves work. The diagrams depict electron circling around. It shows how lightbulbs work & demonsrate current. C/U of a wireless. M/S of B.B.C. (British Broadcasting Corporation / Company) building, M/S of transmitters. Various shots of buildings in America. M/S of a family sat in living room around the television set. | |
WPA FILM LIBRARY
