Ray Tube

Duration: 6 min

Creator: General Electric Co., Visual Instruction Section

Format: 16mm

Sound: Sound

Description: 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 Record: Category: Electronics Subcategory: O.I.A.A. Type: Motion Picture Source: GE Format code: 16sd

Metadata Source:Index of Training Films 1946