• Año
  • 1938/1939
  • Categoría
  • Radio - o Sintonizador pasado WW2
  • Radiomuseum.org ID
  • 50615

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

 Especificaciones técnicas

  • Numero de valvulas
  • 6
  • Principio principal
  • Superheterodino en general; ZF/IF 470 kHz
  • Gama de ondas
  • OM y OC
  • Tensión de funcionamiento
  • Red: Corriente alterna (CA, Inglés = AC) / 115 Volt
  • Altavoz
  • Altavoz electrodinámico (bobina de campo)
  • Material
  • Madera
  • de Radiomuseum.org
  • Modelo: 39-36XX - Philco, Philadelphia Stg. Batt
  • Forma
  • Consola con botonera.
  • Ext. procedencia de los datos
  • Ernst Erb
  • Referencia esquema
  • Rider's Perpetual, Volume 10 = 1939 and before
  • Documentación / Esquemas (1)
  • Philco 1939 RMS Yearbook
  • Documentación / Esquemas (3)
  • Philco Folder PR671 for 1939.

 Colecciones | Museos | Literatura

Colecciones

El modelo 39-36XX es parte de las colecciones de los siguientes miembros.

 Forum

Contribuciones en el Foro acerca de este modelo: Philco, Philadelphia: 39-36XX

Hilos: 1 | Mensajes: 1

Radio friends,

If the white lettering is flaking off the dial glass, it can be restored as described below.

  • The original appearance of the dial glass, with a lot of missing pigment:

  • The lettering on this dial glass, unlike that of many other Philcos, is not screen printed, but is embossed into the back surface of the glass and filled with white pigment.  The remaining original pigment can be removed by washing and brushing, leaving the clean glass surface with only the embossed depressions for the lettering and lines.  The entire back surface can then be painted with an off-white color to match the original color of the lettering.  Scraping with a razor blade then removes the paint on the surface, leaving the embossed features filled with paint:

  • After scraping the entire surface, all of the original lettering and lines are visible:

  • With some further masking and painting, the wide wide stripe at the bottom can be painted to match the original:

  • Closeup view of the lettering, showing the quality that is easily achieved:

The embossed lettering produces a very nice effect when viewing the lighted dial on the radio in a dark room.  Dial lamps light the left and right frosted edges of the glass, sending light through the glass which illuminates the features, with enhanced brightness at the feature edges.  Very pleasing effect.

Use of embossed lettering is not unique to this Philco -- I have seen it on a number of European radios as well.  This type of dial lighting is common on molded plastic dials, but not so common on glass dials on American radios.

Thomas Albrecht, 18.Aug.10

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