A40C

Murphy Radio Ltd.; Welwyn Garden City

Datos
Foro
Imágenes
Colecciones

  • Año
  • 1937/1938
  • Categoría
  • Radio - o Sintonizador pasado WW2
  • Radiomuseum.org ID
  • 119760

Haga clic en la miniatura esquemática para solicitarlo como documento gratuito.

 Especificaciones técnicas

  • Numero de valvulas
  • 15
  • Principio principal
  • Superheterodino doble o triple conversión; ZF/IF 119 kHz
  • Gama de ondas
  • OM, OL y OC
  • Tensión de funcionamiento
  • Red: Corriente alterna (CA, Inglés = AC) / 200-260 Volt
  • Altavoz
  • Altavoz electrodinámico (bobina de campo) / Ø 12 inch = 30.5 cm
  • Potencia de salida
  • 12 W (unknown quality)
  • Material
  • Madera
  • de Radiomuseum.org
  • Modelo: A40C - Murphy Radio Ltd.; Welwyn
  • Forma
  • Consola baja, patas más cortas del 50%.
  • Ancho, altura, profundidad
  • 25 x 31 x 12 inch / 635 x 787 x 305 mm
  • Anotaciones
  • Design by Eden Minns. Double conversion on SW, single on MW and LW. On shortwave signal is fed through special coils and tuning condenser into mediumwave section. Bandspread tuning. The shortwave range was selected by using a special sw-dial to the right of the mw/lw scale, fine tuning by using the mw/lw dial. SW-range 13.9-50 m. Variable selectivity in four steps, giving audio range of 8500 kc/c, 7000, 4500, 3000. AFC (Murphy: Automatic tuning correction, ATC) and noise suppression, automatically switched on in both high qualitiy positions. On high selectivity positions ATC and N/S could be switched in optionally via a switch on the back. A clutch switch on tuning condenser closing and cutting out ATC while tuning control is used. Alphabetical tuning. Cathode ray tuning indicator. Loudspeaker specially developed for this model. Build in tilted in order to direct sound towards mid-height aerea of the room. Two chassis used, power chassis at the base of the cabinet. This set is considerd to be at least one of the best build in pre-war Britain, giving best audio performance. Cabinet of Bombay rosewood, top thuya burr. Power consumption 200/220watts Price when new £35.
  • Peso neto
  • 55.5 kg / 122 lb 3.9 oz (122.247 lb)
  • Precio durante el primer año
  • 35.00 GBP
  • Mencionado en
  • The Gramophone, 10/1937, S.220, The Wireless World March/3rd/1938 , Murphy Sales Booklet 1938
  • Documentación / Esquemas (1)
  • -- Original-techn. papers.
  • Autor
  • Modelo creado por Miguel Bravo-Cos. Ver en "Modificar Ficha" los participantes posteriores.

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