• País
• Estados Unidos

• Fabricante / Marca
• Montgomery Ward & Co. (Wards, Airline); Chicago, IL

• Año
• 1939

• Categoría
• Radio - o Sintonizador pasado WW2

• Radiomuseum.org ID
• 48501

• • Brand: Airline or Air-Line

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

• Numero de valvulas
• 7

• Válvulas
• 6A8G 6SK7 6SQ7 6SQ7 35L6GT 35L6GT 35Z4GT

• Principio principal
• Superheterodino en general; ZF/IF 465 kHz; 2 Etapas de AF

• Número de circuitos sintonía
• 6 Circuíto(s) AM

• Gama de ondas
• OM y OC

• Tensión de funcionamiento
• Red: Corriente alterna (CA, Inglés = AC) / 50-60Hz, 105-125 Volt

• Altavoz
• Altavoz dinámico (de imán permanente) / Ø 6 inch = 15.2 cm

• Potencia de salida
• 3 W (unknown quality)

• Material
• Madera

• de Radiomuseum.org
• Modelo: 93BR-720A Series A - Montgomery Ward & Co. Wards,

• Forma
• Sobremesa de botonera.

• Ancho, altura, profundidad
• 16.25 x 14.25 x 9 inch / 413 x 362 x 229 mm

• Anotaciones

• The Airline 93BR-720A is an AC operated 7 tube BC and SW band receiver.  The BC band frequency tuning range is 540 to 1550kHz.  The SW band frequency tuning range is 5.7 to 18.0MHz.  Has built-in loop antenna for BC band with provisions for connecting an external antenna.  The SW band requird an external antenna.  Phonograph input jack on rear of chassis. Also has push-pull audio output stage and push-button tuning for 6 radio stations.

  The same schematic and chassis for this model is also used for model 04BR-720A.  Note that the first 2 numbers of the model number are the last two digits of the production year reversed.

  This model was built for Montgomery Ward by the Belmont Radio Corp, Chicago, ILL.  The Montgomery Ward catalog order number was 462 A 720.

  NOTE: Starting in 1939, Montgomery Ward began adding the production series in the model number, with the letter "A" in the model number indicating the first production series.  Other service documentation (such as Riders) did not consistantly use the "A" in the model number when referring to the first production series models. However models without the "A" at the end of the model number are the same as the models with the "A".

• Precio durante el primer año
• 21.95 $

• Ext. procedencia de los datos
• Ernst Erb

• Procedencia de los datos
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Referencia esquema
• Rider's Perpetual, Volume 11 = ca. 1940 and before

• Mencionado en
• Rider's 11-36

• Documentación / Esquemas (1)
• Airline Radio Service Manuals 1929-42 Volume II (Pages 177-180)

• Documentación / Esquemas (4)
• Montgomery Ward Catalogs (Wards, Airline) (Spring/Summer 1940, No.132, page 532.)

• Otros modelos

• Donde encontrará 2288 modelos, 1453 con imágenes y 1786 con esquemas.
  Ir al listado general de Montgomery Ward & Co. (Wards, Airline); Chicago, IL