Ultra-Fidelity Amplifier 500A

Radio Craftsmen Inc., The; Chicago (IL)

Datos
Foro
Imágenes
Colecciones

  • Año
  • 1952–1954
  • Categoría
  • Amplificador de audio o mezclador
  • Radiomuseum.org ID
  • 133494

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

 Especificaciones técnicas

  • Numero de valvulas
  • 5
  • Principio principal
  • Amplificador de Audio
  • Gama de ondas
  • - no hay
  • Especialidades
  • Hi-Fi equipment
  • Tensión de funcionamiento
  • Red: Corriente alterna (CA, Inglés = AC) / 105-125 Volt
  • Altavoz
  • - Este modelo usa altavoz exterior (1 o más).
  • Potencia de salida
  • 15 W (unknown quality)
  • Material
  • Metálico
  • de Radiomuseum.org
  • Modelo: Ultra-Fidelity Amplifier 500A - Radio Craftsmen Inc., The;
  • Forma
  • Chasis (tambien de autoradio)
  • Anotaciones

  • The Radio Craftsmen model 500A (number plate only 500 !) is an AC operated audio amplifier for custom installations with one (mono) input (470 k). For optimum operation, the output tubes KT66 should be a matched pair. The line transformer has 3 positions for line voltage.

    Model 500 is the first model of this line which includes 500, 500A, C550 and C550A. Other names like C500, RC500, C500A, RC500A or RC550A are wrong - but we have to list since so many persons look up under these wrong names. SAMS Photofact is distinguishing between model 500 and model 500A - but Radio Craftsmen made on both a number plate with only "500" as model name. Distinctive is the parts line-up on the plate. Therefore have a closed look to our SAMS reference picture when deciding which model it is.

     

    There is an error on the 500A schematic; AF AMP V1 cathode resistor R4 should be 470 ohms, not 470k ohms.  The PARTS LIST AND DESCRIPTION page correctly lists R4 as 470 ohms.

  • Autor
  • Modelo creado por Ernst Erb. Ver en "Modificar Ficha" los participantes posteriores.

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