- Country
- United States of America (USA)
- Manufacturer / Brand
- Dictograph Products Co. International (General Acoustic; Acousticon; Turner) ; New York
- Year
- 1917–1925
- Category
- Loudspeaker, headphone or earphone
- Radiomuseum.org ID
- 229256
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- Wave bands
- - without
- Power type and voltage
- Storage and/or dry batteries / 6 Volt
- Loudspeaker
- Horn / Ø 3.5 inch = 8.9 cm
- Material
- Metal case
- from Radiomuseum.org
- Model: Motor Dictograph - Dictograph Products Co.
- Shape
- Miscellaneous shapes - described under notes.
- Dimensions (WHD)
- 0 x 10 x 0 inch / 0 x 254 x 0 mm
- Notes
-
The "Motor Dictograph" is a system for closed-cabin driver/passenger communication and was first displayed in the 1917 Salon and Shows.
It comprises a carbon microphone built into the passenger cabin, and a horn speaker which is mounted near the driver seat.
The horn has a height of 10"; the typeplate on its base reads 6 Volt - 2 Amp.
It was still in use in 1925, when a Minerva AF was equipped with the system.
- Mentioned in
- Automotive Industries, Volume 53, 1919, P.396
- Literature/Schematics (1)
- Radio Horn Speaker Encyclopedia, Paul, 1986
- Other Models
-
Here you find 30 models, 28 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Dictograph Products Co. International (General Acoustic; Acousticon; Turner) ; New York