Silvertone 7020 Commentator Ch= 132.814

Sears, Roebuck & Co.; Chicago (IL)

Datos
Foro
Imágenes
Colecciones

  • Año
  • 1942/1942
perfect model
  • Categoría
  • Radio - o Sintonizador pasado WW2
  • Radiomuseum.org ID
  • 56934
    • Brand: Silvertone

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

 Especificaciones técnicas

  • Numero de valvulas
  • 5
  • Principio principal
  • Superheterodino en general; ZF/IF 455 kHz; 2 Etapas de AF
  • Número de circuitos sintonía
  • 6 Circuíto(s) AM
  • Gama de ondas
  • OM (onda media) solamente
  • Tensión de funcionamiento
  • Red: Aparato AC/DC. / 105-125 Volt
  • Altavoz
  • Altavoz electrodinámico (bobina de campo) / Ø 4 inch = 10.2 cm
  • Potencia de salida
  • 2.6 W (unknown quality)
  • Material
  • Metálico
  • de Radiomuseum.org
  • Modelo: Silvertone 7020 Commentator Ch= 132.814 - Sears, Roebuck & Co.; Chicago
  • Forma
  • Sobremesa de tamaño mediano sin botonera <= 35 cm. (Incluso portables pero sólo con alimantación por red).
  • Anotaciones

  • This model 7020 "Commentator" colored in "Walnut Brown" and the model 7022 "Commentator" colored in Ivory, both having metal cabinets, made by Noblitt-Sparks (Arvin) were a short lived attempt to get rid of certain problems with the Silvertone models 3351, 3451 and 3551 by designing them without push-down buttons and with a metal cabinet. The war stopped a longer production.
    See this text.
    Post war followers with the "old" plastic cabinet with push-down knobs but also with single ended tubes are Silvertone 7004, 7006 and 7008 (only different colors). All show the "push down" or "piano key" "instamatic" buttons, not ordinary "push buttons". The set would be pushed away with ordinary push buttons. All have the same drift problems. The chassis 132.814 of the 7020 and 7022 is even newer than the post war 7004 etc. with 132.812.

  • Ext. procedencia de los datos
  • Ernst Erb
  • Referencia esquema
  • Rider's Perpetual, Volume 14 = 1944 = before 1943

 Colecciones | Museos | Literatura

 Forum