Principles of radio. Part 2. Receiving radio messages

United States, 1943

Film
Please note

Sorry, we don't have images or video for this item.

The general principles of the radio receiver are explained, and the following points treated in detail: the problem of tuning; the capacity of a variable condenser; the inductance of a coil; resonance; detection, and how a crystal is used as a detector; the operation of an earphone; the production of audible sound waves.

Credits

production company

ERPI Classroom Films

Language

English

Duration

00:10:18:00

Colour

Black and White

ACMI Identifier

27788

Subject categories

Advertising, Film, Journalism, Mass Media & TV → Radio - Receivers and reception

Advertising, Film, Journalism, Mass Media & TV → Radio frequency

Advertising, Film, Journalism, Mass Media & TV → Radio waves

Communications, Infrastructure, & Transport → Radio waves

Educational & Instructional

Educational & Instructional → Instructional

Mathematics, Science & Technology → Radio waves

Mathematics, Science & Technology → Sound-waves

Short films

Short films → Short films - United States

Sound/audio

Sound

Holdings

16mm film; Access Print (Section 1)

Please note: this archive is an ongoing body of work. Sometimes the credit information (director, year etc) isn’t available so these fields may be left blank; we are progressively filling these in with further research.

Cite this work

If you would like to cite this item, please use the following template: {{cite web |url=https://acmi.net.au/works/72090--principles-of-radio-part-2-receiving-radio-messages/ |title=Principles of radio. Part 2. Receiving radio messages |author=Australian Centre for the Moving Image |access-date=16 January 2021 |publisher=Australian Centre for the Moving Image}}