• País
• Estados Unidos

• Fabricante / Marca
• General Electric Co. (GE); Bridgeport CT, Syracuse NY

• Año
• 1956

• Categoría
• Radio - o Sintonizador pasado WW2

• Radiomuseum.org ID
• 96880

• • Brand: Musaphonic

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

• Numero de transistores
• 5

• Semiconductores
• 2N136 2N137 2N135 2N78 2N44 1N64

• 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 / Pack form battery 4.5 & 13.5 Volt

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

• Material
• Plástico moderno (Nunca bakelita o catalina)

• de Radiomuseum.org
• Modelo: 678 - General Electric Co. GE;

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

• Ancho, altura, profundidad
• 5.5 x 3 x 1.5 inch / 140 x 76 x 38 mm

• Anotaciones

• The model 678 is in color green.
  The same model was made in the following colors: model 675 in black, model 676 in ivory, model 677 in red and model 678 in green. They are General Electric's first transistor radios - and it is the second pocket sized transistor radio, made sorthly after Regency's model TR1 pocket radio. In between is only the much bigger sized Raytheon model 8TP, which was also made in 4 colors.
  The technique of the GE pocket transistor radio is unique. See SAMS set 329, folder 7 from September 1956 and Beitman vol 16 show only 675 and 676 what indicates that 677 and 678 followed later than 675 and 676 - in 1956 instead of 1955. We include SAMS for the latter two. The set is made for a "Pack form battery" with a common positive terminal: Eveready number 239 or Burgess XX9. Detection accomplished by a diode just before the 2N78.
  Couleur Vert, pile bi voltage 4.5 & 13,5v Eveready 239 ou Burgess XX9.

• Peso neto
• 0.4 kg / 0 lb 14.1 oz (0.881 lb)

• Procedencia de los datos
• Transistor Radios 1954-68

• Referencia esquema
• Beitman Radio Diagrams Vol. 16, 1956

• Mencionado en
• Antique Radio Magazine n.88, January-February 2009, page 28. Written in Italian.

• Autor
• Modelo creado por Konrad Birkner † 12.08.2014. Ver en "Modificar Ficha" los participantes posteriores.

• Otros modelos

• Donde encontrará 2916 modelos, 2139 con imágenes y 2042 con esquemas.
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