A3

RCA Victor (International), Montreal

Datos
Foro
Imágenes
Colecciones

  • Año
  • 1939/1940
  • Categoría
  • Radio - o Sintonizador pasado WW2
  • Radiomuseum.org ID
  • 148883

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

 Especificaciones técnicas

  • Numero de valvulas
  • 7
  • Principio principal
  • Superheterodino con paso previo de RF; ZF/IF 455 kHz; 2 Etapas de AF
  • Número de circuitos sintonía
  • 7 Circuíto(s) AM
  • Gama de ondas
  • OM y más de dos OC
  • Tensión de funcionamiento
  • Red: Corriente alterna (CA, Inglés = AC) / 105-125 Volt
  • Altavoz
  • Altavoz electrodinámico (bobina de campo) / Ø 6 inch = 15.2 cm
  • Potencia de salida
  • 2 W (5 W max.)
  • Material
  • Madera
  • de Radiomuseum.org
  • Modelo: A3 - RCA Victor International,
  • Forma
  • Sobremesa de botonera.
  • Anotaciones
  • This RCA model A-3 (A3) has the broadcast band (540 - 1720 kc) plus the following four short wave bands: 49 (5.9 - 6.24 mc), 31 (9.41 - 9.69 mc), 25 (11.68 - 11.92 mc) and 19 (15.09 - 15.38 mc). The scale offers 6 push buttons for fixed stations on the broadcast band. The choke field is for the magnetic field of the loudspeaker which has also a "hum neutralizing coil". The magic eye 6U5 is a bit hidden within the scale. With its RF stage (6SK7) and 7 tuned circuits the model A3 has a very good reception. The same applies for the console radio A4 which uses the same documentation and circuit. Power supply with rating A is for 50 to 60 cycles, the one with rating B is for 25 - 60 cycles, each 80 watts. The loudspeaker for A4 is RL70H-1 12 inch and the one for A3 is RL79-1 6 inch, both with impedance 3.4 ohms at 400 cycles. At least for the A4 there is a "Radio-Tone-Phono-Television switch" and a "television socket" plus a separate "phone socket".
  • Procedencia de los datos
  • -- Original-techn. papers.
  • Mencionado en
  • Volume 1939-1940 page 9
  • Documentación / Esquemas (1)
  • - - Manufacturers Literature (RCA Victor Models A3 & A4 Tech. & service data)
  • Autor
  • Modelo creado por Ashis Mukerjea. Ver en "Modificar Ficha" los participantes posteriores.

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