Duoforte Ninety Ch=C68; Power Amplifier=D19

Amalgamated Wireless (Australasia) Ltd. (AWA); Sydney

Datos
Foro
Imágenes
Colecciones

  • Año
  • 1930
  • Categoría
  • Radio - o Sintonizador pasado WW2
  • Radiomuseum.org ID
  • 164061

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

 Especificaciones técnicas

  • Numero de valvulas
  • 10
  • Principio principal
  • RFS sin reacción; 2 Etapas de AF; Screengrid 1926-1935
  • Número de circuitos sintonía
  • 4 Circuíto(s) AM
  • Gama de ondas
  • OM (onda media) solamente
  • Especialidades
  • Tocadiscos (sin cambiador autom)
  • Tensión de funcionamiento
  • Red: Corriente alterna (CA, Inglés = AC) / 200-260 Volt
  • Altavoz
  • Altavoz electrodinámico (bobina de campo)
  • Material
  • Madera
  • de Radiomuseum.org
  • Modelo: Duoforte Ninety Ch=C68; Power Amplifier=D19 - Amalgamated Wireless
  • Forma
  • Consola baja, patas más cortas del 50%.
  • Anotaciones

  • 10 Valve, AC powered, Screen Grid, TRF Receiver with Grid Leak Detection and a Push-Pull audio driver stage driving a Push-Pull audio output stage.    The volume control on this Model and Ninety C66 was a handheld, wired remote control type. It comprised of a handheld potentiometer mounted in a cylindrical case with a Bakelite knob plugged into the terminals in an ident on the left hand side of the cabinet and was connected by a 3 core, screened cable. When not in use the unit hooks onto the side of the cabinet.

    AWA advertised price in 1930 was £115/-

    Chassis:
    Two chassis are used in this radiogram. The receiver chassis housed in the upper compartment and the audio output amplifier and power supply in the speaker compartment. The power supply uses two, 280 rectifiers, one powering the B+ and the other powering the speaker’s field coil.

    Phonograph:
    Electric Induction motor driven 78RPM turntable, automatic stop and Tone arm with volume and tone controls incorporated.

    Cabinet:
    Large console style cabinet with phonograph lid on top and sliding doors on the front.

  • Precio durante el primer año
  • 115.00 Aus£
  • Documentación / Esquemas (1)
  • - - Manufacturers Literature (AWA Service Instruction 1930)
  AWA Duoforte Ninety C68 service Data 192 KB
  AWA Duoforte Ninety Pamphlet 2062 KB
  • Documentos sobre este modelo
  • Autor
  • Modelo creado por Stuart Irwin. Ver en "Modificar Ficha" los participantes posteriores.

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