A-44

Sonora Phonograph Co., Inc.; New York, N.Y.

Datos
Foro
Imágenes
Colecciones

  • Año
  • 1928
  • Categoría
  • Radio - o Sintonizador pasado WW2
  • Radiomuseum.org ID
  • 58208

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

 Especificaciones técnicas

  • Numero de valvulas
  • 10
  • Principio principal
  • RFS (Radio Frecuencia Sintonizada) en general
  • Número de circuitos sintonía
  • 5 Circuíto(s) AM
  • Gama de ondas
  • OM (onda media) solamente
  • Especialidades
  • Tocadiscos-autom o no-no sabemos
  • Tensión de funcionamiento
  • Red: Corriente alterna (CA, Inglés = AC) / 110 Volt
  • Altavoz
  • Altavoz electrodinámico (bobina de campo)
  • Material
  • Madera
  • de Radiomuseum.org
  • Modelo: A-44 - Sonora Phonograph Co., Inc.;
  • Forma
  • Consola baja, patas más cortas del 50%.
  • Anotaciones

  • The model A44 from Sonora Phonograph Co. Inc is a combination set in English Renaissance look with grained butt walnut panels and oak bull overlays. The chassis and schematic are from model A-46. It has a push-pull output stage. The tube RA-1 was made by Arcturus for Sonora. Special indirectly heated tube from 1928 with one end of the 15 volt AC heater connected internally to the cathode. The result was an AC tube with a standard 4 pin base which could be used to "electify" battery receivers. Arcturus made also the other tubes in that model for Sonora.

    Sonora made two versions of the A44 models: one that employed the 15-volt Arcturus tubes, and one, which was a converted job, that employed '27 tubes in all RF stages. In the latter case, the volume knob was used to control cathode bias on the RF amplifiers. This method was unsuitable because of the value of the control used; volume control was not gradual.

  • Precio durante el primer año
  • 695.00 $
  • Ext. procedencia de los datos
  • Ernst Erb
  • Documentación / Esquemas (1)
  • Radio Craft (March 1931, p. 555)

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