• País
• Estados Unidos

• Fabricante / Marca
• Philco, Philadelphia Stg. Batt. Co.; USA

• Año
• 1930/1931

• Categoría
• Radio - o Sintonizador pasado WW2

• Radiomuseum.org ID
• 80423

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

• Numero de valvulas
• 7

• Válvulas
• 24 24 24 27 71A 71A 80

• Principio principal
• RFS sin reacción; Screengrid 1926-1935

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

• Gama de ondas
• OM (onda media) solamente

• Tensión de funcionamiento
• Red: Corriente alterna (CA, Inglés = AC) / 115 Volt

• Altavoz
• Altavoz electrodinámico (bobina de campo)

• Material
• Madera

• de Radiomuseum.org
• Modelo: 20 Baby Grand [Cathedral, late] - Philco, Philadelphia Stg. Batt

• Forma
• Sobremesa tipo Capilla (upright, round top or pinted arch, not rounded edges only).

• Ancho, altura, profundidad
• 16 x 18 x 10 inch / 406 x 457 x 254 mm

• Anotaciones

• The cathedral cabinet for model 20 was updated in early 1931 with a maple overlay on the front of the arch and ribbed columns supporting the arch.
  
  Model 20 was also available in a small console cabinet.
  
  The "-B" (for "Baby Grand") suffix for cathedrals was not used by Philco until later models, although some collectors may call this model "20B".
  
  For the model 20 series, Philco used the term "Baby Grand" for both the cathedral and console versions, unlike later models where "Baby Grand" was used exclusively for cathedrals.
  
  The "DeLuxe" name may not have been used by Philco, but is often used by collectors today to dinstinguish the late model 20 cathedral from the earlier version with a simple flat front on the cabinet.

  Stein "Cathedral & Tombstone Radios" lists 6 tubes.

• Procedencia de los datos
• Collector's Guide to Antique Radios (6th edition)

• Referencia esquema
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

• Mencionado en
• Machine Age to Jet Age II

• Documentación / Esquemas (1)
• Philco Radio 1928-1942 (Philco 1928-36 Wiring Diagrams, Parts Lists, and Essential Service Data)

• Documentación / Esquemas (2)
• Cathedral & Tombstone Radios (page 191.)

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

• Otros modelos

• Donde encontrará 4041 modelos, 2218 con imágenes y 3690 con esquemas.
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