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![The Bell System technical journal . Fig. 22—Schematic of optical tone generator. The desired wave form was accurately drawn on a large scale andthen transferred photographically to the glass disk designated The Bell System technical journal . Fig. 22—Schematic of optical tone generator. The desired wave form was accurately drawn on a large scale andthen transferred photographically to the glass disk designated](https://c8.alamy.com/comp/2CRW9Y8/the-bell-system-technical-journal-fig-22schematic-of-optical-tone-generator-the-desired-wave-form-was-accurately-drawn-on-a-large-scale-andthen-transferred-photographically-to-the-glass-disk-designated-as-d-inthe-diagram-the-disk-driven-by-a-motor-rotated-between-the-lampl-and-a-photoelectric-cell-c-producing-a-fluctuating-light-source-which-fig-23ten-disk-optical-tone-generator-430-bfxl-system-technical-journal-was-directed-by-a-suitable-optical-system-upon-the-plate-of-the-cellthe-voltage-generated-was-amplified-and-attenuated-as-in-the-case-ofthe-pure-tones-the-relative-mag-2CRW9Y8.jpg)
The Bell System technical journal . Fig. 22—Schematic of optical tone generator. The desired wave form was accurately drawn on a large scale andthen transferred photographically to the glass disk designated
![The Bell System technical journal . MOTOR. Fig. 22—Schematic of optical tone generator. The desired wave form was accurately drawn on a large scale andthen transferred photographically to the glass disk The Bell System technical journal . MOTOR. Fig. 22—Schematic of optical tone generator. The desired wave form was accurately drawn on a large scale andthen transferred photographically to the glass disk](https://c8.alamy.com/comp/2CRW9Y9/the-bell-system-technical-journal-motor-fig-22schematic-of-optical-tone-generator-the-desired-wave-form-was-accurately-drawn-on-a-large-scale-andthen-transferred-photographically-to-the-glass-disk-designated-as-d-inthe-diagram-the-disk-driven-by-a-motor-rotated-between-the-lampl-and-a-photoelectric-cell-c-producing-a-fluctuating-light-source-which-2CRW9Y9.jpg)
The Bell System technical journal . MOTOR. Fig. 22—Schematic of optical tone generator. The desired wave form was accurately drawn on a large scale andthen transferred photographically to the glass disk
![Optical spectrum of the first tone generation with high-order harmonics. | Download Scientific Diagram Optical spectrum of the first tone generation with high-order harmonics. | Download Scientific Diagram](https://www.researchgate.net/publication/235888369/figure/fig4/AS:349271250489349@1460284163980/Optical-spectrum-of-the-first-tone-generation-with-high-order-harmonics.png)