104 Cosmopolitan Ch= Z, W-904

Capehart Corp.; Fort Wayne, IN - see also Farnsworth

Datos
Foro
Imágenes
Colecciones

  • Año
  • 1933/1934
perfect model
  • Categoría
  • Radio - o Sintonizador pasado WW2
  • Radiomuseum.org ID
  • 34992

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

 Especificaciones técnicas

  • Numero de valvulas
  • 11
  • Principio principal
  • Superheterodino con paso previo de RF; 3 Etapas de AF
  • Número de circuitos sintonía
  • 9 Circuíto(s) AM
  • Gama de ondas
  • OM (onda media) solamente
  • Especialidades
  • Record-Changer, both sides!; Visual Tuning Indicator pre Eye
  • Tensión de funcionamiento
  • Red: Corriente alterna (CA, Inglés = AC) / 60 cycles, 115 Volt
  • Altavoz
  • Altavoz electrodinámico (bobina de campo)
  • Material
  • Madera
  • de Radiomuseum.org
  • Modelo: 104 Cosmopolitan Ch= Z, W-904 - Capehart Corp.; Fort Wayne, IN
  • Forma
  • Consola en general
  • Anotaciones

  • The Rider's schematic W-904 for models 103, 104 Cosmopolitan, chassis "Z" is dated March 14, 1934. It is for a superhet with RF stage tube 78, 6A7 osc.mixer, 2 xc 78 IF, 75 det and AM amplifier on same chassis. It shows a tuning meter. Field 555 ohms for speaker.
    The tube 6A7 can not be earlier than 1933, Riders is Spring 1934. No IF given there.

    According to Baumbach page 12 this is one model of the earlyer group with designation 101 through 106, made about 1932, designed for the home like the later series 100 which begun 1938/39 season. Rider's shows a model 103 and 104 Cosmopolitan with chassis W-904 with 11 tubes, but the model 101 seems to have 13 tubes. Baumbach presumes that the models employ an Amperion changer. 101 is most probably earlier than 1935!
    See here the "Common information for the Capehart model pages for the 1930s and 1940s".

  • Ext. procedencia de los datos
  • Ernst Erb

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