VIBRATORS
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Illustrates the purpose of vibrator-changing steady DC current to pulsating current. Then points out the parts of a vibrator and explains what makes it work. Shows the schematic of a vibrator in a circuit, and discusses the two vibrator output characteristics-square wave pulsating DC, and frequency varies with rate of opening and closing the contacts. (Kinescope)
Sources
- usgov-av-1974 — title, creator, length, color, sound, description
Record added 2026-07-01 03:46:12