• Año
  • 1925 ?
  • Categoría
  • Kit (Partes con instruciones) o Solo Instrucciones
  • Radiomuseum.org ID
  • 336932

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

 Especificaciones técnicas

  • Numero de valvulas
  • 4
  • Principio principal
  • Diseños especiales; 3 Etapas de AF; Reflex
  • Gama de ondas
  • OM (onda media) solamente
  • Tensión de funcionamiento
  • Baterías recargables o pilas / 90; 6; 4.5 Volt
  • Altavoz
  • - Este modelo usa altavoz exterior (1 o más).
  • Material
  • Madera
  • de Radiomuseum.org
  • Modelo: Acmeflex Model A - Acme Apparatus Co.; Cambridge
  • Forma
  • Sobremesa, caja, normalmente con tapa (panel no inclinado).
  • Anotaciones
  • Radio is unique because of its reflex design, single tuned stage, and panel-mounted crystal detector. The radio must be connected to a loop antenna to complete the tuned circuit. Selectivity is poor, but would have been adequate in 1925. If a tuned loop is used, the radio can be tuned across most of the AM band with much better selectivity.  Rheostat controls filaments of all 4 tubes.  Potentiometer controls bias on first tube grid.  Acme put the rheostat and pot in a concentric arrangement.  The crystal detector has a coarse adjustment and a small vernier to help move the internal cat whisker.  This detector works very well and once set it requires very little attention. It was in a cheaply made pine box with a plain bakelite front panel.  It was intended to be low cost compared to other radios at that time, but still provides adequate sensitivity and enough power to clearly drive a horn or loudspeaker of that time.

    Everything in the Kit except tubes, batteries and speaker.

  • Documentación / Esquemas (1)
  • -- Schematic
  • Autor
  • Modelo creado por Tim McVey. Ver en "Modificar Ficha" los participantes posteriores.

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

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