Oil Break Spark Key

Ducretet (-Thomson; avant: Fernand Ducretet et Ernest Roger etc.); Paris

Datos
Foro
Imágenes
Colecciones

  • Año
  • 1918 ??
  • Categoría
  • Eequipos de Morse & TTY, RTTY, TDD etc.
  • Radiomuseum.org ID
  • 259857
    • alternative name: SED

 Especificaciones técnicas

  • Gama de ondas
  • - no hay
  • Tensión de funcionamiento
  • No necesita alimentación
  • Altavoz
  • - - No hay salida de sonido.
  • Material
  • Materiales diversos
  • de Radiomuseum.org
  • Modelo: Oil Break Spark Key - Ducretet -Thomson; avant:
  • Forma
  • Sobremesa de cualquier forma, detalles no conocidos.
  • Ancho, altura, profundidad
  • 5.125 x 3.5 x 3.125 inch / 130 x 89 x 79 mm
  • Anotaciones

  • Ducretet & Roger WWI Oil Break Spark Key. The key was designed to be used in the explosive environment found onboard an aircraft. The keying contacts are immeresed in a little cup of oil in the base of the key thus making this a "flame proof" key. The key was called an Oil Break key because the "Make or Break" contact happened in oil. The oil also helped radiate heat away from the contacts and helped to minimize arcing of the contacts therefore proloning their life. 

    The holes drilled in the lever also indicate this key was designed for use on an aircraft. The holes were drilled to lighten the weight of the key on the aircraft where payload was big concern. 

  • Autor
  • Modelo creado por Alan Larsen. Ver en "Modificar Ficha" los participantes posteriores.

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El modelo Oil Break Spark Key es parte de las colecciones de los siguientes miembros.

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