Accession number:
1971.0056Producers:
Production Years:
1971Languages:
- English
Film Properties:
- 16mm
- Colour
- Sound
Length (minutes):
18Subjects:
Holding Institutions:
State Library of New South Wales, Australia: 16mm.
"Shows the four basic components of the radio circuit, including the changing of the audio wave into an electric signal at the broadcasting station, the modulation of the carrier wave with the variations of the audio signal, the role of the antenna circuit in the receiver, the rectifier and filter circuits, and the amplifier which drives the loudspeaker."