75A

Collins Radio Company; Cedar Rapids (IA)

Datos
Foro
Imágenes
Colecciones

  • Año
  • 1946/1947
  • Categoría
  • Receptor para radioaficionados (puede incluir bandas de radiodifusión publ.)
  • Radiomuseum.org ID
  • 172339

 Especificaciones técnicas

  • Numero de valvulas
  • 14
  • Principio principal
  • Superheterodino doble o triple conversión; ZF/IF 1500-2500/500 kHz
  • Gama de ondas
  • Onda Corta solamente
  • Tensión de funcionamiento
  • Red: Corriente alterna (CA, Inglés = AC) / 115 Volt
  • Altavoz
  • - Este modelo usa altavoz exterior (1 o más).
  • Potencia de salida
  • 2.5 W (unknown quality)
  • Material
  • Metálico
  • de Radiomuseum.org
  • Modelo: 75A - Collins Radio Company; Cedar
  • Forma
  • Sobremesa apaisado (tamaño grande).
  • Ancho, altura, profundidad
  • 536 x 311 x 352 mm / 21.1 x 12.2 x 13.9 inch
  • Anotaciones

  • Collins 75A Amateur Band Communications Receiver: Double conversion, AM/CW, six amateur bands from 80 - 10 meters (3,2-4,2 / 6,8-7,8 / 14-15 / 20,8-21,8 / 26-28 and 28-30 MHz), five step crystal filter 0.2 to 4 kHz.
    Early 54A-1, the early sets came without limiter switch at the right above function knob.
    Osterman states: "One view is that the 75A-1 was simply referred to as Collins 75A until the 75A-2 came out in 1950. Another theory suggests that a small run of < 200 75A's were made in 1946."
    Moore has in his remarks: "Early 75A" and shows an image without limiter switch, in the remarks of the 75-A1 he states "Differs from 75A in limiter switch on right side above function knob"
    Further clarification about this matter is still needed. Anyway first advertised in Electronics, December, 1946, page 256. No limiter switch visible in the image in the ad.

  • Peso neto
  • 25.8 kg / 56 lb 13.3 oz (56.828 lb)
  • Autor
  • Modelo creado por Martin Bösch. Ver en "Modificar Ficha" los participantes posteriores.

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