11

Briton Electrical & Radio Pty. Ltd ("Rational Radio"); Sydney, NSW.

Datos
Foro
Imágenes
Colecciones

  • Año
  • 1937
  • Categoría
  • Radio - o Sintonizador pasado WW2
  • Radiomuseum.org ID
  • 167037

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

 Especificaciones técnicas

  • Numero de valvulas
  • 6
  • Principio principal
  • Superheterodino con paso previo de RF; ZF/IF 462.5 kHz; 2 Etapas de AF
  • Número de circuitos sintonía
  • 7 Circuíto(s) AM
  • Gama de ondas
  • OM y OC
  • Tensión de funcionamiento
  • Red: Corriente alterna (CA, Inglés = AC) / 240 Volt
  • Altavoz
  • Altavoz electrodinámico (bobina de campo) / Ø 12 inch = 30.5 cm
  • Material
  • Madera
  • de Radiomuseum.org
  • Modelo: 11 - Briton Electrical & Radio Pty.
  • Forma
  • Consola baja, patas más cortas del 50%.
  • Anotaciones

  • 6 valve, dual band, AC powered superhet.

    From The Bulletin Sep 22, 1937, Page 41:
    A vital point in any dual wave superhet is the short-wave unit, and in the Briton receivers this is a masterpiece of accessibility and rigidity. The shortwave coils and switching mechanism are mounted on a strong metal frame, and wiring is done in heavy-gauge, solid wire.There is no part of the unit that cannot be reached for test or service, a welcome feature for the dealer-serviceman. Iron-core coils on Sirufer cores are used throughout, and the utmost care is taken with impregnation. The impression gained was that these receivers will stand up against any tropical climate.
    The 11 is a 5-6 dual-waver selling at 33 guineas and fitted with Philips valves, EF5 (R.F. amplifier), EK2 (frequency converter), EF5 (I.F. amplifier), EBC3 (duo-diode-triode demodulator, combining A.V.C. and first audio), EL3 (high-gain pentode) and EZ3 (indirectly heated rectifier). The advantage of the last named is that until all valves have reached operating temperature no load is applied. The R.F. amplifier works on the short-waves covering from 16 to 45 metres. The audio quality and selectivity satisfy critical ears. Most outstanding is the sensitivity; it was found that changing from a small indoor to a large outdoor aerial made very little difference in the signal gain on London or Berlin. Even with the small aerial background noise was conspicuously absent.

  • Precio durante el primer año
  • 34.00 Aus£
  • Referencia esquema
  • Australian Official Radio Service Manual Vol. I I
  • Autor
  • Modelo creado por Stuart Irwin. Ver en "Modificar Ficha" los participantes posteriores.

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