Ray Tube
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The director of GE Research Laboratory, Dr. D. W. Coolidge, presents the making and operation of these tubes and explains the effect of cathode rays on minerals.
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, creator, length, format, sound, description, catalog record
Record added 2026-07-09 22:50:35