- Country
- United States of America (USA)
- Manufacturer / Brand
- Dictograph Products Co. International (General Acoustic; Acousticon; Turner) ; New York
- Year
- 1928–1932 ?
- Category
- Medical Technology
- Radiomuseum.org ID
- 349201
- Main principle
- Audio-Amplification
- Wave bands
- - without
- Details
- Hearing aid
- Power type and voltage
- Dry Batteries / 3 Volt
- from Radiomuseum.org
- Model: Acousticon Model 28 - Dictograph Products Co.
- Notes
-
The Acousticon Model 28 carbon hearing aid was manufactured by the General Acoustic Company, which later became Dictograph Products, Inc. of New York, NY.
Since the Model 28 came out around Acousticon's 25th anniversary in 1928, it was also called the "Silver Seal Symphonic" or "Silver Anniversary". In honor of this, the microphone and volume control were inlaid with a fancy pattern.
The Model 28 was manufactured between 1928 and 1932. It replaced the Acousticon Model SRB.
- Author
- Model page created by Keith Ellison. See "Data change" for further contributors.
- 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
Collections
The model Acousticon is part of the collections of the following members.