• Año
  • 1923/1924
perfect model
  • Categoría
  • Radio - o Sintonizador pasado WW2
  • Radiomuseum.org ID
  • 49892
    • alternative name: Operadio Mfg,

 Especificaciones técnicas

  • Numero de valvulas
  • 6
  • Número de circuitos sintonía
  • 1 Circuíto(s) AM
  • Gama de ondas
  • OM (onda media) solamente
  • Tensión de funcionamiento
  • Pilas
  • Altavoz
  • Corneta
  • Material
  • Cuero/Tela/ Plástico sobre otros materiales
  • de Radiomuseum.org
  • Modelo: 2 - Operadio Corp.; St. Charles IL
  • Forma
  • Portátil > 20 cm (sin la necesidad de una red)
  • Anotaciones
  • The original tube line up has to be UV199 if this model has arrived in 1923:

    The "Saga of the vacuum tube" by Tyne tells us on page 314: "In April 1925 the UV199 was superseded by the UX199, announced August 1, 1925. Production continued up to 1931, although after 1927 few new receivers were built to use it. Nickel-plated contact pins were introduced in 1927."

    After some time the UX tubes were noted only by the numbers and a bit later only by the last two digits. The UV199 was introduced in December 1922, the same time as the UV201A.

  • Precio durante el primer año
  • 190.00 $
  • Ext. procedencia de los datos
  • Ernst Erb
  • Documentación / Esquemas (2)
  • Radio Broadcast, Jul. 1924, p. 274

 Colecciones | Museos | Literatura

Colecciones

El modelo 2 es parte de las colecciones de los siguientes miembros.

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