High Quality Six (6)

Kingsley (brand); various manufacturers

Datos
Foro
Imágenes
Colecciones

  • Año
  • 1947
  • Categoría
  • Radio - o Sintonizador pasado WW2
  • Radiomuseum.org ID
  • 251623

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

 Especificaciones técnicas

  • Numero de valvulas
  • 6
  • Principio principal
  • Superheterodino en general; ZF/IF 1900 kHz; 3 Etapas de AF; something special ? Please give information (notes)
  • Número de circuitos sintonía
  • 7 Circuíto(s) AM
  • Gama de ondas
  • OM (onda media) solamente
  • Tensión de funcionamiento
  • Red: Corriente alterna (CA, Inglés = AC) / 240 Volt
  • Altavoz
  • Altavoz dinámico (de imán permanente)
  • de Radiomuseum.org
  • Modelo: High Quality Six - Kingsley brand; various
  • Anotaciones

  • 6 Valve, AC powered superhet with a wide band IF centred on 1900kHz and a direct coupled audio output stage.

    This was an experimental kit set for home construction designed by A.G. Hull.

    It was supplied with a Kingsley  KFJB "Ferrotune" permeability tuning unit and IF transformers set up in the factory to match the 1900kHz IF.

    The audio stage was based on the” Loftin White” principal.

    The audio stage uses direct DC coupling. The 6J7G with the plate, screen and suppressor tied together to form a triode is the first audio stage. The plate is tied direct to the grid of output triode 6A3. See the schematic. Actual voltage on the plate and grid is about 100V. In order to arrange correct bias for the output valve the filament circuit is set at 130V. This is achieved by using a power transformer with a separate filament winding for the output stage and a 4k resistor to earth. The bias voltage is then developed between the grid and filament. With respect to earth the grid is 30V negative.

  • Mencionado en
  • -- Original prospect or advert (Australasian Radio World Aug 15, 1947 Page 9.)
  • Documentación / Esquemas (1)
  • -- Original prospect or advert (Australasian Radio World Aug 15, 1947 Page 11.)
  Australasian Radio World Aug 15, 1947 Page 9 & 11. 426 KB
  • Documentos sobre este modelo
  • Autor
  • Modelo creado por Gary Cowans. Ver en "Modificar Ficha" los participantes posteriores.

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