YOUR VOICE AND THE TELEPHONE
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Revision of 1957 film entitled "Sounds familiar." Tells how the telephone instrument transmits and reproduces the human voice through the conversion of sound waves into electrical impulses
Complete catalog record
Source: BellTel
Interest level: el-jh
Price: free-loan
Format: sd color
Catalog numbers: LC card Fi A 59-763
Interest level: el-jh
Price: free-loan
Format: sd color
Catalog numbers: LC card Fi A 59-763
Sources
- Educational film guide. Supplements (1959-62) — title, year, creator, length, format, color, sound, description, catalog record
Record added 2026-07-06 16:24:03