File:Edward Kellogg & Chester Rice with cone speaker 1925.jpg
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Size of this preview: 800 × 516 pixels. Other resolutions: 320 × 206 pixels | 640 × 413 pixels | 935 × 603 pixels.
Original file (935 × 603 pixels, file size: 360 KB, MIME type: image/jpeg)
Categories:
- 1921 inventions
- 1925 inventions
- 1926 introductions
- Chester W. Rice
- Dynamic loudspeakers with excitation coils
- Edward W. Kellogg
- Electrodynamic cone loudspeakers
- General Electric Research Laboratory
- Historical loudspeakers
- History of audio engineering
- History of radio
- People with loudspeakers
- RCA Radiola Loudspeakers