Filament Transformer

Ellison Manufacturing Co., Ltd.; Harrogate

Datos
Foro
Imágenes
Colecciones

  • Año
  • 1931 ?
  • Categoría
  • Pieza de radio (no módulo)
  • Radiomuseum.org ID
  • 357204

 Especificaciones técnicas

  • Gama de ondas
  • - no hay
  • Tensión de funcionamiento
  • Red: Corriente alterna (CA, Inglés = AC) / 200 -250 Volt
  • Altavoz
  • - - No hay salida de sonido.
  • Material
  • Material especial, que se describe en las notas.
  • de Radiomuseum.org
  • Modelo: Filament Transformer - Ellison Manufacturing Co., Ltd
  • Forma
  • Chasis (tambien de autoradio)
  • Ancho, altura, profundidad
  • 3.375 x 5 x 4.375 inch / 86 x 127 x 111 mm
  • Anotaciones

  • Ellison Filament Transformer

    There are probably many readers who have A.C. mains but whose sets use battery valves with an A.C. eliminator and wish to change to the more efficient A.C. valves. The necessary modification to the set can usually be carried out easily, but a filament transformer will be needed.

    The transformer is well-made and has a very substantial core and a neat terminal assembly on the top. Only two windings are provided, the primary tapped for voltages between 200 and 250, and a centre-tapped secondary winding giving 4 volts on load.

    On test, the transformer was quite satisfactory, with good regulation, as can be seen from the accompanying figures. The no-load power was 1.7 watts, giving an efficiency at full load of 93 percent. 

    Amps Volts
    0 4.25
    1 4.20
    2 4.15
    3 4.10
    4 4.05
    5 4.00
    6 3.95

     

  • Mencionado en
  • -- Original prospect or advert (Amateur Wireless Jun 27, 1931, Page 1006.)
  • Autor
  • Modelo creado por Gary Cowans. Ver en "Modificar Ficha" los participantes posteriores.

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