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Dictogrand (Portable) R-3

ID = 104487

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Dictograph Products: Dictogrand R-3 [Altavoz-Au] ID = 248220 560x700

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For model Dictogrand (Portable) R-3, Dictograph Products Co. International (General Acoustic; Acousticon; Turner) ; New York:
Horn repainted.

País:

Estados Unidos

Fabricante / Marca:

Dictograph Products Co. International (General Acoustic; Acousticon; Turner) ; New York

Año: 1923

Categoría: Altavoz, cascos o auricular

Gama de ondas	- no hay
Especialidades
Tensión de funcionamiento	No necesita alimentación
Altavoz	Corneta
Potencia de salida
de Radiomuseum.org	Modelo: Dictogrand R-3 - Dictograph Products Co.
Material	Materiales diversos
Forma	Formas varias descritas en notas aparte.
Ancho, altura, profundidad	10.75 x 12.5 x 10.25 inch / 273 x 318 x 260 mm
Anotaciones	Unique low profile horn design. Metal horn. Spacing between diaphragm and magnet adjustable with front panel knob (volume control). According to "Radio Horn Speaker Encyclopedia", the "portable" model was available in 3 different variants (black, mahogany, rubber). However, the Encyclopedia does not discern between models R-3 and R-4. Model R3 doesnt have adjustable volume contrarly to model R4. See https://www.radiomuseum.org/dsp_picture.cfm?Image_Id=1704812&model_id=229222&imgtyp=2 In https://www.radiomuseum.org/r/dictograph_dictograph_radio_loud_speaker.html you can see both models.
Peso neto	4 kg / 8 lb 13 oz (8.811 lb)
Precio durante el primer año	29.00 $
Precio de coleccionista
Documentación / Esquemas (1)	Radio Horn Speaker Encyclopedia, by Floyd A.Paul
Documentación / Esquemas (2)	Popular Science, Nov. 1924

Modelo creado por Thomas Albrecht. Ver en "Modificar Ficha" los participantes posteriores.

Ir al listado general de Dictograph Products Co. International (General Acoustic; Acousticon; Turner) ; New York
Donde encontrará 28 modelos, 26 con imágenes y 0 con esquemas.

Colección personal de Roland Böhme (D)

Colección personal de Thomas Albrecht (USA)