Masterpiece II (2) Variant 3

McMurdo Silver, Inc.(pre WW2); Chicago

  • Año
  • 1934
  • Categoría
  • Radio - o Sintonizador pasado WW2
  • Radiomuseum.org ID
  • 288308

 Especificaciones técnicas

  • Numero de valvulas
  • 12
  • Principio principal
  • Superheterodino con paso previo de RF
  • Gama de ondas
  • OM y más de dos OC
  • Tensión de funcionamiento
  • Red: Corriente alterna (CA, Inglés = AC)
  • Altavoz
  • Altavoz electrodinámico (bobina de campo)
  • Potencia de salida
  • 17 W (undistorted)
  • Material
  • Metálico
  • de Radiomuseum.org
  • Modelo: Masterpiece II [Variant 3] - McMurdo Silver, Inc.pre WW2;
  • Forma
  • Chasis (tambien de autoradio)
  • Anotaciones
  • 4 bands.  3 intermediate freqency amplifier stages.  Schematic dated March 4, 1934.

    The third variant of the Masterpiece II uses the same tube lineup as the 2nd variant.  The audio driver circuit with the 53-tube has been modified, and is now wired as a single triode (only one half of the tube is used).  This receiver is referred to in The Silver Times, Vol. 2 No. 6, July, 1934, as "The 1935 Masterpiece II."  The amplifier is the same "short amp" with one choke as used with Variant 2.  All three variants have been found in the field.

    Dimensions and weight are listed as follows:  Tuner 19"W x 8.5"H x 10.5"D.  Power amplifier 13.25"W x 7"H x 5"D.  Giant Speaker 13.75"W x 13.75"H x 8"D.  Ortho-dynamic speaker 12"W x 12"H x 7"D.  Weight packed export, 158 lbs.

  • Mencionado en
  • - - Manufacturers Literature (The Silver Times Vol. 2, No. 6, July 1934)
  • Autor
  • Modelo creado por Rodney Boleyn. Ver en "Modificar Ficha" los participantes posteriores.

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