9-10-11 k/c Whistle Filter Unit
Lowther Manufacturing Co; Kent
- País
- Gran Bretaña (GB)
- Fabricante / Marca
- Lowther Manufacturing Co; Kent
- Año
- 1936–1950 ??
- Categoría
- Amplificador de audio o mezclador
- Radiomuseum.org ID
- 340660
- Gama de ondas
- - no hay
- Tensión de funcionamiento
- No necesita alimentación
- Material
- Madera
- de Radiomuseum.org
- Modelo: 9-10-11 k/c Whistle Filter Unit - Lowther Manufacturing Co; Kent
- Forma
- Sobremesa de tamaño mediano sin botonera <= 35 cm. (Incluso portables pero sólo con alimantación por red).
- Anotaciones
-
9-10-11 K/c Whistle Filter Unit.
This whistle filter is designed to be used in conjunction with the Voigt speaker unit, its object being to remove the 9 k/c whistle superimposed on your program by the neighbouring stations, chiefly after dark.
This band of frequencies is essential if the best is to be heard, and so all filters are fitted with a switch to put them out of the circuit when circumstances permit (throughout the daytime). It also acts as a very efficient "scratch filter" when a Piezo electric type of pick-up is used.
The filter is connected in the leads to the speech coil, no other alteration or adjustment being needed.
£2 10 0 ex-works. Without cover £2 2 0
- Precio durante el primer año
- 2.50 GB £
- Mencionado en
- - - Manufacturers Literature (Lowther Voigt Radio, Season 1936-37, Page 19.)
- Autor
- Modelo creado por Gary Cowans. Ver en "Modificar Ficha" los participantes posteriores.
- Otros modelos
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