Excursions in Science #4
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Demonstrates the "electric eye" or photo-tube. Shows how photo-tube makes sound movies possible.
Complete catalog record
Category: Electronics
Subcategory: O.I.A.A.
Type: Motion Picture
Source: GE
Format code: 16sd
Subcategory: O.I.A.A.
Type: Motion Picture
Source: GE
Format code: 16sd
Sources
- Index of Training Films 1946 — title, year, creator, length, format, sound, description, catalog record
Record added 2026-07-09 22:50:35