• País
• Estados Unidos

• Fabricante / Marca
• Zenith Radio Corp.; Chicago, IL

• Año
• 1959/1960

• Categoría
• Radio - o Sintonizador pasado WW2

• Radiomuseum.org ID
• 148244

• • alternative name: Chicago Radio Lab

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

• Numero de transistores
• 7

• Semiconductores
• 2N486 2N485 2N483 2N483 2N362 2N633 2N633

• Principio principal
• Superheterodino en general; ZF/IF 455 kHz; 2 Etapas de AF

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

• Gama de ondas
• OM (onda media) solamente

• Tensión de funcionamiento
• Pilas / 4 x 1.5 Volt

• Altavoz
• Altavoz dinámico (de imán permanente) / Ø 2.75 inch = 7 cm

• Potencia de salida
• 0.1 W (0.18 W max.)

• Material
• Plástico moderno (Nunca bakelita o catalina)

• de Radiomuseum.org
• Modelo: Royal 275-J The Statesman Ch= 7CT40Z1 - Zenith Radio Corp.; Chicago,

• Forma
• Portátil de bolsillo , menor de 20cm.

• Ancho, altura, profundidad
• 5.75 x 3.75 x 1.75 inch / 146 x 95 x 44 mm

• Anotaciones

• The Zenith Royal 275-J is a battery operated 7 transistor portable BC band receiver.  The BC band frequency tuning range is 540-1600kHz.  Has push-pull output stage and earphone jack that disconnects the speaker for private listening.

  The Zenith Royal model 275 is available in an early version with the inscription "The Statesman" on the upper front (chassis = 7CT40Z1) and a later version without this (chassis = 7CT40Z2). It looks similar to the Royal 250 but has two-tone cabinets and a gear reduced vernier tuning. As a cheaper radio, it has a plastic case rather the nylon cabinet like the 500 with practically the same chassis.
  
  Please check the color code before uploading pictures.
  The letter suffix is not shown on the model but there are the following codes for colors: 275B (dark blue with a light blue back), 275F (dark green with a light green), 275J (brown and a tan back) and 257Y (black with a beige back). As model name we list with a hyphen as 275-B, 275-F, 275-J and 275-Y so that you get the chance to find by 275 alone or with color suffix.
  
  Both, the early and the late version are featured in Photofact set 486, folder 28 on May 1960.

• Precio durante el primer año
• 50.00 $

• Documentación / Esquemas (1)
• Photofact Folder, Howard W. SAMS (Date 5-60, Set 486, Folder 28)

• Documentación / Esquemas (2)
• - - Manufacturers Literature (Zenith Service Manual Model "Royal 275" Transistor Portable Radio dated 5-26-59)

• Documentación / Esquemas (3)
• Beitman Radio Diagrams, Vol. 20, 1960 (Pages 179, 180)

• Autor
• Modelo creado por Ernst Erb. Ver en "Modificar Ficha" los participantes posteriores.

• Otros modelos

• Donde encontrará 4496 modelos, 4101 con imágenes y 3615 con esquemas.
  Ir al listado general de Zenith Radio Corp.; Chicago, IL