A-2-A Radionic Hearing Aid early
Zenith Radio Corp.; Chicago, IL
- País
- Estados Unidos
- Fabricante / Marca
- Zenith Radio Corp.; Chicago, IL
- Año
- 1943 ?
- Categoría
- Tecnologia médica
- Radiomuseum.org ID
- 347728
-
- alternative name: Chicago Radio Lab
Serial no. HA 028616
Serial no. HA 028616
Serial no. HA 028616 microphone defective
Serial no. HA 028616
Model A2A, Serial no. HA 028616
- Numero de valvulas
- 2
- Principio principal
- Amplificador de Audio
- Gama de ondas
- - no hay
- Especialidades
- Audífono
- Tensión de funcionamiento
- Pilas / 1.5 & 45 Volt
- Altavoz
- - solamente tiene Auricular (mini) de oido
- Material
- Plástico moderno (Nunca bakelita o catalina)
- de Radiomuseum.org
- Modelo: A-2-A Radionic Hearing Aid [early] - Zenith Radio Corp.; Chicago,
- Forma
- Portátil de bolsillo , menor de 20cm.
- Ancho, altura, profundidad
- 70 x 130 x 22 mm / 2.8 x 5.1 x 0.9 inch
- Anotaciones
-
Developed around the new subminiature tubes in 1942, its production would not commence due to stop of commercial production during WWII. However, government permission was granted in 1943 for the production even in wartime! The reason was that there were about ten million people hard of hearing in the country who were unable to serve in the military. But they were able to work in war production facilities if they had a hearing aid.
The A2A was a two-piece hearing aid and needed external batteries. Also see model Zenith A-2-A late equipped with other tubes
- Peso neto
- 0.170 kg / 0 lb 6 oz (0.374 lb)
- Precio durante el primer año
- 40.00 USD
- Procedencia de los datos
- Zenith Radio The Glory Years 1936-1945
- Autor
- Modelo creado por Wolfgang Gebert. Ver en "Modificar Ficha" los participantes posteriores.
- Otros modelos
-
Donde encontrará 4494 modelos, 4099 con imágenes y 3605 con esquemas.
Ir al listado general de Zenith Radio Corp.; Chicago, IL
Colecciones
El modelo A-2-A Radionic Hearing Aid es parte de las colecciones de los siguientes miembros.